WO2008006402A1 - Connecteur enfichable - Google Patents

Connecteur enfichable Download PDF

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Publication number
WO2008006402A1
WO2008006402A1 PCT/EP2006/064149 EP2006064149W WO2008006402A1 WO 2008006402 A1 WO2008006402 A1 WO 2008006402A1 EP 2006064149 W EP2006064149 W EP 2006064149W WO 2008006402 A1 WO2008006402 A1 WO 2008006402A1
Authority
WO
WIPO (PCT)
Prior art keywords
terminal
wavelength
connector
coupled
connector according
Prior art date
Application number
PCT/EP2006/064149
Other languages
German (de)
English (en)
Inventor
Daniel Mailloux
Ralf Lohrmann
Francis Nedvidek
Ingo Smaglinski
Original Assignee
Cube Optics Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Cube Optics Ag filed Critical Cube Optics Ag
Priority to DE112006003952T priority Critical patent/DE112006003952A5/de
Priority to PCT/EP2006/064149 priority patent/WO2008006402A1/fr
Publication of WO2008006402A1 publication Critical patent/WO2008006402A1/fr

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
    • G02B6/29346—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by wave or beam interference
    • G02B6/29361—Interference filters, e.g. multilayer coatings, thin film filters, dichroic splitters or mirrors based on multilayers, WDM filters
    • G02B6/29362—Serial cascade of filters or filtering operations, e.g. for a large number of channels
    • G02B6/29364—Cascading by a light guide path between filters or filtering operations, e.g. fibre interconnected single filter modules
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
    • G02B6/29346—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by wave or beam interference
    • G02B6/29361—Interference filters, e.g. multilayer coatings, thin film filters, dichroic splitters or mirrors based on multilayers, WDM filters
    • G02B6/29362—Serial cascade of filters or filtering operations, e.g. for a large number of channels
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/381—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
    • G02B6/3825—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres with an intermediate part, e.g. adapter, receptacle, linking two plugs
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
    • G02B6/29346—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by wave or beam interference
    • G02B6/29361—Interference filters, e.g. multilayer coatings, thin film filters, dichroic splitters or mirrors based on multilayers, WDM filters
    • G02B6/29362—Serial cascade of filters or filtering operations, e.g. for a large number of channels
    • G02B6/29365—Serial cascade of filters or filtering operations, e.g. for a large number of channels in a multireflection configuration, i.e. beam following a zigzag path between filters or filtering operations
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
    • G02B6/29346—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by wave or beam interference
    • G02B6/29361—Interference filters, e.g. multilayer coatings, thin film filters, dichroic splitters or mirrors based on multilayers, WDM filters
    • G02B6/2937—In line lens-filtering-lens devices, i.e. elements arranged along a line and mountable in a cylindrical package for compactness, e.g. 3- port device with GRIN lenses sandwiching a single filter operating at normal incidence in a tubular package
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/381—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
    • G02B6/3826—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres characterised by form or shape
    • G02B6/3831—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres characterised by form or shape comprising a keying element on the plug or adapter, e.g. to forbid wrong connection
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/3873—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls
    • G02B6/3874—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls using tubes, sleeves to align ferrules
    • G02B6/3878—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls using tubes, sleeves to align ferrules comprising a plurality of ferrules, branching and break-out means
    • G02B6/3879—Linking of individual connector plugs to an overconnector, e.g. using clamps, clips, common housings comprising several individual connector plugs
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/389—Dismountable connectors, i.e. comprising plugs characterised by the method of fastening connecting plugs and sockets, e.g. screw- or nut-lock, snap-in, bayonet type
    • G02B6/3893—Push-pull type, e.g. snap-in, push-on
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4246—Bidirectionally operating package structures
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4292—Coupling light guides with opto-electronic elements the light guide being disconnectable from the opto-electronic element, e.g. mutually self aligning arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0201—Add-and-drop multiplexing

Definitions

  • the present invention relates to a device for coupling and / or decoupling a specific wavelength into or from an information signal which is composed of signals having different wavelengths.
  • optical waveguide usually a glass fiber.
  • signals of different wavelengths are combined in a multiplexer and then transmitted together, but independently of each other, via the optical fiber.
  • the composite signal must be decomposed again with the help of a demultiplexer into its original components.
  • the information is transmitted by modulating the amplitude of a fixed wavelength signal.
  • Each channel can then be used separately for information transmission.
  • individual channels can also be extracted or individual channels can be added.
  • the devices mentioned above which are also referred to as add-drop multiplexer (ADM) are used.
  • demultiplexers / multiplexers are generally arranged in 19-inch bays, which in turn are used in corresponding control cabinets.
  • the use of such 19-inch bays requires space, which often has to be created on site only with great effort.
  • These bays have several ports on their front panel so that the composite signal is coupled to one port and at another port the decoupled signal, i. the information signal having a certain wavelength is output. Since the connections are all arranged on the front side, a complex deflection optics must be arranged within the housing. Since each diverting element attenuates the information signal to a certain extent, the use of the known add-drop multiplexers leads to a deterioration of the signal-to-noise ratio.
  • a connector having a housing and at least a first and a second terminal, wherein the first terminal for receiving the at least one optical waveguide and the second terminal for connection to the at least one further optical waveguide and / or with the at least one Transmitting and / or receiving element is provided, wherein at least one wave-modifying element is provided between the first and the second terminal, so that at least one property of light signals which are coupled into the first terminal and output to the second terminal and / or of light signals , which are coupled into the second terminal and output to the first terminal is changed.
  • a wave-modifying element is understood to mean any element which, when placed in the beam path, influences one, several or even all wavelength channels of the optical channel. Influencing is understood, for example, as reflecting, absorbing, amplifying, attenuating, interrupting or polarizing.
  • the wave-modifying element is a wavelength-selective element, preferably a band-pass filter.
  • a wavelength-selective element is understood to be any element which, when placed in the beam path, influences one or more wavelength channels and at the same time leaves one or more other wavelength channels substantially unaffected.
  • the first terminal may be formed as a socket and the second terminal as a plug.
  • transceivers that is to say elements which have both a receive and a send function, sockets in which a corresponding plug provided on the glass fibers is inserted.
  • transceivers usually have a LC duplex socket with a socket for the receiving part Rx and a socket for the transmitting part Tx.
  • a pair of glass fiber which is provided with a LC duplex connector is used.
  • the design of the two connectors for the connector as a plug and socket it is possible to disconnect an existing connection between fiber optic connector and transceiver and the connector with its plug - -
  • the fiber optic connector can then be inserted into the socket of the connector.
  • the connector then requires no additional footprint.
  • the first and the second terminal are not arranged in the same housing wall of the connector.
  • the housing wall, in or at which the first terminal is arranged closes with the housing wall, in or on which the second terminal is arranged, an angle of more than 45 °, preferably more than 60 ° and more preferably about 90 ° one.
  • the connector provides a 90 ° angle. This measure can provide for a space-saving installation of the glass fibers.
  • a further particularly preferred embodiment provides that the first and second terminals are arranged in or on opposite walls of the housing of the connector.
  • This also allows a simplified arrangement of the corresponding optical elements within the connector.
  • the housing wall, in or on which the first terminal is arranged, and the housing wall, in or on which the second terminal is arranged extend substantially parallel, wherein for some applications the housing walls also have a small angle of less than 45 °, preferably less than 25 °, and more preferably less than 15 °.
  • the connector comprises three terminals and a wavelength-selective element, which are arranged such that light signals which are coupled in at the first terminal are coupled out depending on their wavelength either at the second or at the third terminal.
  • the third connection is advantageously arranged in or on the same wall as the first connection. This makes it possible to design the first and second terminals as a duplex plug or as a duplex preferably LC-type.
  • the first and the second terminal are arranged such that the light beam coupled into the first terminal and the light beam coupled out of the second terminal lie substantially on the same imaginary straight line.
  • the connector comprises a total signal input and a composite signal output terminal, and a channel input and output terminal, the connector combining a wavelength channel of the signal applied to the overall signal input terminal from the channel output terminal and the signal coupled to the channel input terminal together with the residual signal, which is not coupled out at the channel output terminal, outputs at the total signal output.
  • the two total signal terminals are arranged on the same side of the housing, and in the same way, preferably, the channel connections on the same side, and preferably arranged on the opposite side of the housing of the connector.
  • FIG. 1 is a schematic view of a possible connection of two mutually communicating transceivers (without the connector according to the invention),
  • FIG. 2 shows a first possible application of the plug connection according to the invention
  • FIG. 33 shows a second possible application of the plug connection according to the invention
  • FIG. 5 shows a further embodiment of the construction of the optical elements within the plug connection according to the invention
  • FIG. 66 shows a further embodiment of the construction of the optical elements within the plug connection according to the invention
  • FIG. 10 shows several side views and perspective views of an embodiment of the connector according to the invention, FFiigg .. 1111 of the connector of FIG. 10 in the inserted state,
  • FIG. 12 is an exploded view of FIG. 11, - -
  • FIG. 14 is an exploded view of the connector of FIG. 13,
  • FIG. 16 is a schematic representation of the pin assignment
  • FIG. 17 is an exploded view to illustrate the circuit assignment of FIG. 16,
  • FIG. 20 shows an alternative embodiment with four connections
  • FIG. 21 shows a view of the embodiment of FIG. 20 in the inserted state
  • FIG. 21 shows a view of the embodiment of FIG. 20 in the inserted state
  • FIG. 22 is a view of the internal structure of the optical elements in the embodiment of FIG. 20; FIG.
  • FIG. 23 shows a second example of the arrangement of the optical elements within the connector according to FIG. 20, and FIG. 24 shows an exemplary arrangement of the connectors with four terminals.
  • FIG. 1 schematically shows by way of example a simple connection of two transceivers.
  • a transceiver refers to a structural unit that combines a transmitter and a receiver.
  • Each transceiver has an Rx connection and a Tx connection, where Rx stands for the receiver / receiver and Tx for the transmitter / transmitter.
  • the two transceivers 1, 2 shown in FIG. 1 are connected to one another via a glass fiber duplex line 43.
  • the two transceivers 1, 2 can be several kilometers apart. In principle, it would be possible to use only one fiber optic connection. In the embodiment shown, however, a glass fiber duplex line is used, which consists of two mutually parallel glass fibers.
  • the first transceiver 1 is capable of outputting information signals having a fixed wavelength ⁇ n via the output Tx. These information signals are then transmitted by means of the line connection 43 to the second transceiver 2, namely there to the Rx input.
  • information signals are to be transmitted from the second transceiver 2 to the first transceiver 1, they are transmitted at the transmission output Tx of the second transceiver 2 via the optical fiber connection 43 to the reception input Rx of the first transceiver 1.
  • an opto-electrical converter is arranged, which converts the information signal transmitted via the duplex optical waveguide 43 into an electrical signal.
  • FIG. 2 shows a first embodiment of a connector 4 according to the invention.
  • two transceivers 1, 2 are shown, which are connected to one another via an optical waveguide 3.
  • the plug connector 4 has a connection 5 which can be used with the waveguide 3 (generally a glass fiber).
  • terminals 6 and 7 are provided which can be connected to the transmission terminal Tx and the reception terminal Rx of the transceivers 1, 2.
  • the first transceiver 1 transmits here information signals with the wavelength A 3
  • the second transceiver 2 sends information signals with the wavelength A 4 .
  • the connector 4 also has a deflecting element 8 and a wavelength-selective filter 9.
  • the wavelength-selective filter 9 passes light signals of a certain wavelength while reflecting light signals of other wavelengths.
  • the deflecting element may be a mirror.
  • a corresponding wavelength-selective filter can likewise be used for the deflecting element 8 in order, for example, to reduce cross-talk.
  • the first transceiver 1 If an information signal is now to be transmitted from the first transceiver 1 to the second transceiver 2, the first transceiver 1 outputs a corresponding signal via the transmission output Tx. This signal is coupled via the terminal 7 in the connector 4. The signal is incident on the wavelength-selective filter 9.
  • This wavelength-selective filter 9 is here designed such that it passes information signals with the wavelength A 3 , but all signals with a different wavelength reflected. Since the first transceiver 1 with exactly the wavelength A 3 emits data, they can pass through the wavelength-selective filter 9 and are coupled into the waveguide 3 at the output 5 of the connector 4. The waveguide 3 is connected to the terminal 5 of the connector 4 of the second transceiver 2.
  • the information signal strikes the wavelength-selective filter 9, which, however, here has a wavelength adapted to the second transceiver 2. Because the second transceiver 2 with the wavelength A 4 emits information signals, the wavelength-sensitive filter 9 is transparent to signals of wavelength A fourth However, the signal of the first transceiver 1 has the wavelength A 3 , so that the signal at the wavelength-selective filter 9 is reflected. It then encounters the deflecting element 8, which directs the signal to the terminal 7 of the connector 4, which in turn is connected to the receiving terminal Rx of the second transceiver 2.
  • the information signal having the wavelength A 4 is output from the transmission terminal Tx of the second transceiver 2, is coupled into the connection 6 of the connector 4 , strikes the wavelength-selective filter 9, which passes signals with the wavelength A 4 , so that the signal can exit from the terminal 5 and can be coupled into the waveguide 3.
  • the signal is then input to the connector 4 of the first transceiver 1 at the terminal 5, where it is reflected at the wavelength-selective filter 9, since this, as already mentioned, only pass signals with the wavelength A 3 , so that it passes through the deflecting element 8 the receiving terminal Rx of the first transceiver 1 impinges.
  • the wavelength-selective filter of the connector is adapted to the wavelength of the transceiver on which the connector is to be applied.
  • a second embodiment of a connector 4 ' according to the invention is shown.
  • a first transceiver 1 and a second transceiver 2 are connected via an optical waveguide 3.
  • the connector 4 ' has a wavelength-selective element 9 and a deflecting element 8.
  • the waveform differs from the waveform in the embodiment shown in FIG. 2, as explained below in a signal direction. It is understood that the reverse signal direction is the same.
  • the first transceiver 1 transmits via its transmission terminal Tx a signal with the wavelength A 3 , which is coupled via the terminal 7 in the connector 4 '.
  • the signal then hits the deflecting element 8, which directs the signal onto the wavelength-selective filter 9.
  • the wavelength-selective element 9 is not adapted here to the wavelength of the first transceiver 1 but to the wavelength of the second transceiver 2. More specifically, the wavelength-selective element 9 of the connector 4 1 , which sits on the transmitting and receiving connector of the first transceiver 1, passes information signals with the wavelength A 4 , while all other - -
  • the signal transmitted by the first transceiver 1 with the wavelength A 3 at the wavelength-selective filter 9 is also reflected onto the connection 5 and thus coupled into the waveguide 3.
  • the signal After passing through the waveguide 3, which can usually be up to a few kilometers long, the signal via the terminal 5 of the connector 4 1 , which is inserted on the transmitting and receiving terminal of the second transceiver 2, coupled.
  • the wavelength-selective filter 9 which, in contrast to the embodiment shown in FIG. 2, is adapted with its wavelength not to the wavelength of the second transceiver 2 but to the wavelength of the first transceiver 1.
  • the embodiment in Fig. 3 has the disadvantage that in the selection of the connector 4 1 one must know the wavelength of the possibly miles away transceiver.
  • Fig. 4 the internal structure of another embodiment of the connector according to the invention is shown schematically.
  • the housing has been omitted, so that only the optical waveguides 3, 3 ', 3 "as well as the optical elements 10, 11, 12 and the beam path, which is illustrated by means of a dot-dash line, are shown. that the ends of the optical waveguides 3, 3 ', 3 "are connected to corresponding terminals of the connector, which are not shown here.
  • the connector according to the invention is thus an optical add / drop multiplexer (OADM).
  • OADM optical add / drop multiplexer
  • the terminal or waveguide 3 "shown on the right in the figure is connected to the transmitting terminal Tx of a transceiver
  • the optical waveguide 3" could for example be arranged inside the transceiver or connect the terminal of the connector to the transceiver.
  • the waveguide 3 "could also be omitted.
  • the embodiment shown in FIG. 4 is intended to add another channel to an information signal consisting of several channels.
  • the information signal which consists of signals of different wavelengths, is coupled via the optical waveguide 3 in the arrow direction in the connector. If one follows the course of the beam sketched by the dot-and-dash line, one sees that the signal first turns to a curved envelope. - -
  • the curved deflecting element has a curved reflecting surface, preferably a reflecting surface having a parabolic or elliptical shape, wherein the generally slightly divergent light emerging from the optical fiber 3 is substantially converted by the curved shape of the deflecting element 10 into a parallel light beam.
  • This parallel light beam then impinges on the deflection element 11, from which it is directed onto the wavelength-selective element 12.
  • the wavelength-selective element 12 is a band-pass filter, which allows only light with a specific wavelength or within a certain frequency band to pass, while light of other frequencies or other wavelengths is reflected.
  • the wavelength-selective element 12 is designed such that it allows the wavelength channel which is added via the glass fiber 3 "to pass through The additional signal then impinges on a further curved deflection element 10, which couples the light beam into the waveguide 3 '.
  • this wavelength band is initially not included in the light signal arriving via the waveguide 3.
  • This deflecting element essentially corresponds to the first deflecting element described, wherein here from the parallel beam a focusing beam is produced, which focuses the light signal as far as possible into the core of the optical waveguide 3 1 .
  • a further embodiment of the connector is shown, which substantially corresponds to Fig. 4, but wherein the arrangement has been substantially mirrored. While in the embodiment shown in Fig. 4, the incoming optical waveguide 3 and the light waveguide 3 ", which comes from the transceiver, are arranged at substantially the same height and the outgoing Lichwellenleiter 3 'below the first two optical fibers - -
  • the optical waveguide 3 ' which carries the outgoing information signals, above the optical waveguides 3 and 3 ".
  • the connector according to the invention is intended to be plugged directly into the corresponding socket of the transceiver, it depends on the geometric conditions of the transceiver, whether the embodiment of Figure 4 or the embodiment of Figure 5 is more suitable.
  • Fig. 6 an alternative construction is shown.
  • the optical waveguide 3 is connected to the receiving terminal Rx of the transceiver If an information signal consisting of a plurality of wavelength channels is coupled into the plug-in connection via the optical waveguide 3, the signal is first parallelized by a lens 13 and strikes then the wavelength-selective filter 12, which transmits only the detectable or to be detected wavelength channel by the transceiver in Fig. 6 right, while all other wavelength channels are reflected to the deflection element 14.
  • the deflection element 14 is here a prism due to the opposite to a mirror In principle, however, a mirror could alternatively also be arranged here.
  • the deflection element 14 directs the reflected channels via the focusing lens 13 onto the glass fiber 3 ', which forwards the remaining information channels 12 determines which wavelength channel passes the connector and is output via the focusing lens 13 to the receiving terminal of the transceiver or the waveguide 3 ".
  • Fig. 7 a further alternative embodiment is shown.
  • the signal arriving via the waveguide 3 is first parallelized via a lens 13, then with the aid of the prism
  • Fig. 7 transmits, while all other wavelength channels over another
  • Prism 14 and another lens, which has here focusing properties, is coupled back into the optical waveguide 3 '. Only the channel to be coupled out is via the prism
  • Embodiment corresponds substantially to the embodiment shown in Figure 5, wherein the beam direction has been reversed. In principle, all embodiments shown can be used in both directions. - -
  • Fig. 8 another embodiment is shown.
  • This embodiment also consists of an arrangement of lenses 13, deflecting elements 14 configured as a prism and deflection elements 11 configured as mirrors. Furthermore, a wavelength-selective element 12 is provided again.
  • a channel is filtered out of the channels coupled via the waveguide 3 via the optical waveguide 3 ", while all other wavelength channels are output via the optical waveguide 3 '.
  • Fig. 9 is a perspective view of two connector is shown.
  • Each of the connectors 15 and 15 ' has a plug 16 on one side and two sockets 17 on the opposite side.
  • the plug 16 is suitably connected to the waveguide 3 "or the corresponding receiver or transmitting terminal Tx or Rx of the transceiver, while in the bushings 17, the waveguides 3 and 3" are used.
  • the connector 15 'shown in the figure above has an internal structure according to FIG. 5, while the connector 15 shown in the figure below has an internal structure according to FIG. 7 or FIG. It is provided that the connector 15 is plugged onto the receiving terminal Rx of the transceiver and the connector 15 'to the transmission terminal Tx of the transceiver.
  • the use of a six-pin connector element which is composed in principle of two of the connectors already described.
  • the one connector terminal 16 is provided for connection to the transmission terminal of the transceiver Tx, while the other connector terminal 16 is provided for connection to the receiver terminal Rx of the transceiver.
  • the two connectors 15 and 15 'shown in Figure 9 are combined into a connector.
  • FIG. 10 various side views and perspective views of such a connector with six terminals are shown.
  • FIG. 11 shows a perspective view of the connector 15 "with inserted waveguides and a state mounted on the transceiver 2. Altogether, two pairs of waveguides 18, 19 and 20, 21, each connected to an LC duplex connector, are inserted. The function of each waveguide will be explained later.
  • Fig. 12 shows a corresponding exploded view.
  • the duplex plug 23 of the lower pair of optical fibers 20, 21 with the transceiver sockets lies approximately in one plane, and the duplex plug 22 of the upper pair of glass fibers 18, 19 is arranged above this level. This sets - -
  • an alternative embodiment may also be configured such that the second pair of optical fibers 18, 19 is below the plane in which the transceiver sockets are housed and the first pair of optical fibers 20, 21. Such an embodiment is shown in FIGS.
  • FIG. 15 shows an exemplary cabling with two transceivers 2 and 2 1 .
  • Each transceiver 2 and 2 1 is designed to receive a signal of a corresponding wavelength and to transmit a signal of this wavelength, the wavelengths of the individual transceivers 2 and 2 1 differing.
  • the waveguide pair 18, 19 consists of a waveguide 19 which carries the information signals to be supplied to the individual transceivers, while the other optical fiber 18 carries the signals supplied by the individual transceivers.
  • Each connector 15 "therefore ensures that out of the one glass fiber 18 of the pair of optical fibers 18, 19, a corresponding wavelength channel is coupled and applied to the receiving port Rx of the respective transceiver 2 or 2 1 and one of the respective transceiver 2 and 2 'output Signal is coupled to the other waveguide 18 of the waveguide pair 3.
  • the outgoing waveguide pair 20, 21 from the connector 15 "of one transceiver 2 is placed on the input of the second connector 15" of the other transceiver 2 1 .
  • FIG. 17 the exploded view known from FIG. 12 is shown once again in comparison to FIG. 16, wherein the individual connections in FIGS. 16 and 17 have been given the same reference numerals for better understanding. - -
  • the duplex connector 22 carries the incoming pair of optical fibers, which consists of the glass fibers 18 and 19.
  • the optical fiber 19 carries the signal which is to be divided at the individual transceivers into the individual wavelength components or channels, so that each wavelength channel is transmitted to the corresponding transceiver.
  • the optical fiber 18 carries the combination of the signals sent by the individual transceivers 2.
  • This duplex plug 22 could in principle be connected directly to the transceiver 2 at the connections 30 and 31. The signal transmitted by the transceiver 2 would then be applied via the terminal 30 directly to the glass fiber 18, while the receiver via the terminal 31 receives the signal arriving from the optical fiber 19.
  • the connector 15 "according to the invention is arranged between the duplex connector 22 and the transceiver
  • the wavelength-selective elements arranged in the two functional parts 15 and 15 'of the connector 15" are matched to the wavelength of the transceiver 2, so that the transceivers 2 provided wavelength is coupled out of the optical fiber 19 to the output 29 of the connector 15 "in the input 31 of the transceiver 2.
  • the output from the transceiver via the output 30 signal is coupled into the input 28 of the connector 15 so that it If the pair of optical fibers 18, 19 carries only one wavelength channel which is adapted to the transceiver 2, the structure described hitherto is fully functional.
  • the wavelength-selective element or the bandpass filter thus determines that which wavelength channel on the receiving element of the transce ivers and which signal wavelengths can be coupled from the transmitting terminal Tx of the Transeivers.
  • wavelength channels are coupled out via the connections 25 and 27 or can be coupled in via them.
  • the embodiment described so far could be installed without the connection of the second duplexer 23 to an information receiver and transmitter having the transceiver 2. This can then use its assigned wavelength channel. However, it should turn out over time that the wavelength channel is no longer the desired one - -
  • the information flow between the transceiver 2 and the corresponding node increases in such a way that a single wavelength channel is no longer sufficient, as can be seen in FIG. 18, for example, in addition to the transceiver 2 Transceivers 2 1 or even a third transceiver 2 "can be arranged as many transceivers as possible in order to supply the transceiver 2 ', which is designed for the wavelength channel A 2 , with the corresponding signals or the signals from receive this transceiver, the terminals 25 and 27 of the connector shown in Fig. 16 15 "via the pair of optical fiber 23, consisting of the glass fibers 20 and 21, by means of the plug 48 to the terminals 38 and 46 of another connector 15" connected. This situation corresponds to the perspective view shown in FIG.
  • the connector 15 " which is inserted on the transceiver 2 1, is adapted to the wavelength of the respective transceiver, so that only this wavelength can be transmitted or coupled into the corresponding fiber optic cable
  • the connectors may have a color coding on its outside, by means of which the installer can recognize, on soft wavelength of the connector is designed.
  • the arrangement has the advantage that the number of transceivers and thus the number of channels used can be arbitrarily extended and in the extension, the communication between the first transceiver and the central node does not have to be interrupted. On the contrary, additional transceivers or additional connection cables can simply be switched on without the communication of the already wired transceivers being interrupted or disturbed.
  • FIG. Another embodiment is shown in FIG.
  • two transceivers 2 and 2 1 are shown, which are each designed for the same wavelength ⁇ i.
  • a redundant structure is provided, so that in case of failure of a transceiver or inadvertent severing of a fiber optic cable information flow is still guaranteed.
  • the signal to be transmitted is injected via the multiplexer 34 as well as the multiplexer 36 in the corresponding glass fibers. Furthermore, two demultiplexers 33 and 35 are provided, each of which decomposes the received signal into its individual components. - -
  • FIG. 20 another embodiment of a connector according to the invention is shown.
  • This connector has four terminals, wherein in the embodiment shown two are formed as a plug and two as a socket.
  • Fig. 21 shows the connector 15 "" of Fig. 20 with plugged-glass fibers, wherein the connector 15 "" is attached to the transceiver 2.
  • FIG. 1 An exemplary arrangement of the optical elements within the connector 15 "" is shown in FIG. The beam path can be easily illustrated by the figure. From the multiplex signal, which is supplied via the optical fiber 18, a single wavelength channel is coupled to the receiver Rx of the transceiver, while the signal Tx transmitted by the transceiver is coupled into the optical fiber 19.
  • the structure consists of four lenses 13, two bandpass filters 12, and a deflection 11.
  • FIG. 1 An alternative arrangement of the four-terminal connector is shown in FIG.
  • a multiplexer 37 which modulates a plurality of signals of different wavelengths onto a single optical waveguide 39.
  • This optical waveguide 39 now encounters the input terminal IN of a first connector 41 with four terminals, which is adapted to the wavelength ⁇ i.
  • This connector sits on the transceiver 40, which is provided for the wavelength ⁇ i.
  • the wavelength channel having the wavelength ⁇ i is coupled to the receiving terminal Rx of the transceiver 40, while all other wavelengths are reflected so that they are output at the output terminal OUT of the connector 41.
  • a signal outputted from the transceiver 40 having the wavelength ⁇ i is coupled to the output signal.
  • the output terminal OUT of the connector 41 is connected to the input terminal IN of the connector 42.
  • the wavelength channel with the wavelength K 2 is now coupled out or a corresponding signal with the wavelength K 2 of the transceiver 45 is coupled.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Couplings Of Light Guides (AREA)
  • Optical Communication System (AREA)

Abstract

La présente invention concerne un connecteur enfichable avec un boîtier et au moins une première et une deuxième connexions. La première connexion sert à recevoir au moins une fibre optique et la deuxième connexion sert à la liaison avec au moins une autre fibre optique et/ou avec au moins un élément émetteur et/ou récepteur. Au moins un élément modificateur d'ondes et placé entre la première et la deuxième connexions est prévu. Afin de trouver une solution qui permette le couplage et/ou le découplage du canal de longueur d'onde correspondant sur la place la plus petite, qui peut être installée facilement et qui atténue aussi peu que possible le signal d'information, il est prévu selon l'invention qu'au moins une propriété des signaux lumineux, qui sont couplés dans la première connexion et émis au niveau de la deuxième connexion, et/ou des signaux lumineux qui sont couplés dans la deuxième connexion et qui sont émis au niveau de la première connexion, soit modifiée.
PCT/EP2006/064149 2006-07-12 2006-07-12 Connecteur enfichable WO2008006402A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE112006003952T DE112006003952A5 (de) 2006-07-12 2006-07-12 Steckverbinder
PCT/EP2006/064149 WO2008006402A1 (fr) 2006-07-12 2006-07-12 Connecteur enfichable

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Application Number Priority Date Filing Date Title
PCT/EP2006/064149 WO2008006402A1 (fr) 2006-07-12 2006-07-12 Connecteur enfichable

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WO2008006402A1 true WO2008006402A1 (fr) 2008-01-17

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DE (1) DE112006003952A5 (fr)
WO (1) WO2008006402A1 (fr)

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DE102008022610A1 (de) * 2008-05-08 2009-11-12 Krones Ag Elektrische Steckverbindung
US9753236B1 (en) * 2016-07-19 2017-09-05 Fiberpia Co., Ltd. Optical transceiver for bi-directional optical communication and method of manufacturing the same
US10018787B1 (en) * 2017-03-31 2018-07-10 Avago Technologies General Ip (Singapore) Pte. Ltd. Multi-channel optical wavelength division multiplexing/demultiplexing (WDM) assembly and methods

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WO2002021733A1 (fr) * 2000-09-05 2002-03-14 Cube Optics Ag Modificateur optique et son procede de production
EP1225463A2 (fr) * 2001-01-19 2002-07-24 Hirose Electric Co., Ltd. Connecteur optique à ferrule échangeable
US20020110313A1 (en) * 2001-02-12 2002-08-15 Agere Systems Guardian Corp. Apparatus and method for transmitting optical signals through a single fiber optical network
US20030063862A1 (en) * 2001-10-01 2003-04-03 Woodhead Industries, Inc. Holder for optical loopback assembly with release mechanism
US20040042710A1 (en) * 2002-08-29 2004-03-04 Near Margalit Optical add/drop module
US20040114870A1 (en) * 2002-11-26 2004-06-17 Johnny Zhong Optical add/drop patch cord
US20050220398A1 (en) * 2004-03-30 2005-10-06 J.S.T. Mfg. Co., Ltd. Optical module
EP1672820A2 (fr) * 2004-12-17 2006-06-21 Alcatel Bloc optique universel multiports comprenant un port optique configurable

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EP1158325A2 (fr) * 2000-05-22 2001-11-28 Alps Electric Co., Ltd. Séparateur/combinateur de faisceau avec une structure de support d'un filtre optique
WO2002021733A1 (fr) * 2000-09-05 2002-03-14 Cube Optics Ag Modificateur optique et son procede de production
EP1225463A2 (fr) * 2001-01-19 2002-07-24 Hirose Electric Co., Ltd. Connecteur optique à ferrule échangeable
US20020110313A1 (en) * 2001-02-12 2002-08-15 Agere Systems Guardian Corp. Apparatus and method for transmitting optical signals through a single fiber optical network
US20030063862A1 (en) * 2001-10-01 2003-04-03 Woodhead Industries, Inc. Holder for optical loopback assembly with release mechanism
US20040042710A1 (en) * 2002-08-29 2004-03-04 Near Margalit Optical add/drop module
US20040114870A1 (en) * 2002-11-26 2004-06-17 Johnny Zhong Optical add/drop patch cord
US20050220398A1 (en) * 2004-03-30 2005-10-06 J.S.T. Mfg. Co., Ltd. Optical module
EP1672820A2 (fr) * 2004-12-17 2006-06-21 Alcatel Bloc optique universel multiports comprenant un port optique configurable

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008022610A1 (de) * 2008-05-08 2009-11-12 Krones Ag Elektrische Steckverbindung
US7931504B2 (en) 2008-05-08 2011-04-26 Krones Ag Electrical connector
US9753236B1 (en) * 2016-07-19 2017-09-05 Fiberpia Co., Ltd. Optical transceiver for bi-directional optical communication and method of manufacturing the same
US10018787B1 (en) * 2017-03-31 2018-07-10 Avago Technologies General Ip (Singapore) Pte. Ltd. Multi-channel optical wavelength division multiplexing/demultiplexing (WDM) assembly and methods

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