CN209690569U - A kind of wavelength interval is less than the 50G simplex optical module of 20nm - Google Patents
A kind of wavelength interval is less than the 50G simplex optical module of 20nm Download PDFInfo
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- CN209690569U CN209690569U CN201920610898.2U CN201920610898U CN209690569U CN 209690569 U CN209690569 U CN 209690569U CN 201920610898 U CN201920610898 U CN 201920610898U CN 209690569 U CN209690569 U CN 209690569U
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Abstract
The utility model discloses the 50G simplex optical modules that a kind of wavelength interval is less than 20nm, PWDM module includes double optical fiber head, first self-focus lens, WDM filters film, 45 degree of prisms, second self-focus lens and single fiber head, one end of double optical fiber head is connect with one end of the first self-focus lens, the other end of the first self-focus lens is arranged in WDM filtering film, first self-focus lens and the second self-focus lens are each perpendicular to the bevel edge of 45 degree of prisms, first self-focus lens output fiber is incident in prism by 45 degree of prism bevel edges and is received by projecting after two right-angle side reflections from bevel edge by the second self-focus lens, second self-focus lens one end is connect with the first end of single fiber, one end of double optical fiber head is connected by optical fiber with isolator TOSA, fiber adapter connects double light by optical fiber The other end of fine head, ROSA connect the other end of single fiber head by optical fiber.The utility model realizes the function that single fiber bi-directional of the wavelength interval less than 20nm transmits.
Description
Technical field
The utility model relates to a kind of simplex optical module, especially a kind of wavelength interval is less than the 50G single fiber of 20nm
Bidirectional optical module belongs to optical communication field.
Background technique
It is illustrated in figure 4 the principle of the Snigle module of the simplest structure of the prior art, optical signal
Optical module is entered by input/output terminal 12 by optical fiber, in optical module, the first filter plate 13 is in 45 degree of angles, light with optical path
By the first filter plate 13 90 degree of reflections occur for beam, filter using the second filter plate 14, then light beam is received by receiving end 15.
Receiving end 15 uses PD or APD photodiode for a kind of optical detector, is used for photoelectric conversion, optical signal is made to be converted into telecommunications
Number.Transmitting terminal 16 uses laser diode, and the light beam that transmitting terminal 16 issues passes through isolator 17, and the first filter plate 13 is transmitted into
Input/output terminal 12.Isolator can prevent the light of line reflection from entering transmitting terminal 16, improve the stability of signal.
45 ° of incidence structure and similar structures are generally able to satisfy 60nm (15 and 16 wavelength intervals) and above wavelength
The single fiber bi-directional at interval is received and dispatched, and is less than the interval 60nm, can not just be used this structure.CN103605191B describes a kind of 20-
The Snigle structure of the wavelength interval 60nm.The single fiber that currently available technology does not have also wavelength interval to be less than 20nm
The record of the technical solution of bidirectional light receiving and transmitting.
Utility model content
The technical problem to be solved by the utility model is to provide the 50G single-fiber bidirectional opticals that a kind of wavelength interval is less than 20nm
Module.
In order to solve the above technical problems, the technical scheme adopted by the utility model is:
A kind of wavelength interval is less than the 50G simplex optical module of 20nm, it is characterised in that: comprising module housing and sets
Set in intracorporal band isolator TOSA, ROSA, PWDM module of module case and fiber adapter, PWDM module include double optical fiber head,
First self-focus lens, WDM filtering film, 45 degree prisms, the second self-focus lens and single fiber head, one end of double optical fiber head and the
One end of one self-focus lens connects, and WDM filtering film is arranged in the other end of the first self-focus lens, the first self-focus lens and
Second self-focus lens are each perpendicular to the bevel edge of 45 degree of prisms, and the first self-focus lens output fiber is entered by 45 degree of prism bevel edges
It is incident upon in prism and is received by being projected after two right-angle side reflections from bevel edge by the second self-focus lens, the second self-focus lens
One end is connect with the first end of single fiber, connects one end of double optical fiber head by optical fiber with isolator TOSA, and fiber adapter passes through
Optical fiber connects the other end of double optical fiber head, and ROSA connects the other end of single fiber head by optical fiber.
Further, the TO CAN with isolator TOSA is 50G EML TO CAN, typical wavelengths 1295.6nm
Or 1309.1nm.
Further, your TOSA of the band isolator is band refrigeration TO encapsulating structure, built-in thermoelectric refrigerator, thermoelectric cooling
Device makes EML chip controls within the scope of stable temperature Wavelength stabilized in LAN WDM specification limit.
Further, the ROSA uses 50G APD TO CAN, and typical wavelengths are 1309.1nm or 1295.6nm, with
Band isolator TOSA pairing uses.
Further, band the isolator TOSA and ROSA are welded on optical module circuit board by soft board, optical module electricity
Road plate is fixed in module housing, and the setting of optical module circuit board one end is in module housing one end end and module housing should
End end is provided with the interface structure connecting with light module device.
Further, the fiber adapter is fixed on the module housing other end and module housing other end end is arranged
There is LC interface structure.
Further, the module housing other end is provided with a lug.
Further, using QSFP28 packing forms.
The utility model compared with prior art, has the following advantages that and effect: the utility model using mature band every
From device TOSA, ROSA cooperates PWDM module to realize the function that single fiber bi-directional of the wavelength interval less than 20nm transmits, while special
The PWDM module size not designed is small, and SFP28, a variety of encapsulation such as QSFP28, whole simplex optical module knot may be implemented
Structure is simple, and packaging process is few, reduces packaging cost.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of the 50G simplex optical module of wavelength interval less than 20nm of the utility model.
Fig. 2 is a kind of schematic internal view of the 50G simplex optical module of wavelength interval less than 20nm of the utility model.
Fig. 3 is the inside schematic diagram of the PWDM module of the utility model.
Fig. 4 is the schematic diagram of the prior art.
Specific embodiment
Below by embodiment, the utility model is described in further detail, and following embodiment is to the utility model
Explanation and the utility model is not limited to following embodiment.
The utility model is used to be referred to as described as follows:
TOSA is the abbreviation of Transmitter Optical Subassembly, and Chinese is light emitting secondary module.Mainly answer
It is converted to optical signal (E/O conversion) used in electric signal, performance indicator has optical power, threshold value etc..Band isolator TOSA, high speed
TOSA needs that isolator is cooperated to use, therefore isolator built in high speed TOSA, can prevent the light of line reflection from entering transmitting terminal,
Improve the stability of signal.
ROSA is the abbreviation of Receiver Optical Subassembly, and Chinese is light-receiving secondary module.Main application
Optical signal is converted to electric signal (O/E conversion), and main performance index has sensitivity (Sen) etc..
PWDM is wavelength division multiplexer.
As shown, a kind of wavelength interval of the utility model is less than the 50G simplex optical module of 20nm, it include module
Shell 1 and setting are in intracorporal band isolator TOSA2, ROSA3, PWDM module 4 of module case and fiber adapter 5, PWDM mould
Block 4 includes double optical fiber head 6, the first self-focus lens 7, WDM filtering 8,45 degree of prisms 9 of film, the second self-focus lens 10 and monochromatic light
Fine head 11, one end of double optical fiber head 6 are connect with one end of the first self-focus lens 7, and WDM filters film 8 and is arranged in the first auto-collimation
The other end of lens 7, the first self-focus lens 7 and the second self-focus lens 10 are each perpendicular to the bevel edge of 45 degree of prisms 9, and first certainly
7 output fiber of collimation lens is incident in prism by 45 degree of 9 bevel edges of prism and is penetrated after being reflected by two right-angle sides from bevel edge
It is received out by the second self-focus lens 10,10 one end of the second self-focus lens is connect with 11 one end of single fiber head, band isolator
TOSA2 connects one end of double optical fiber head 6 by optical fiber, and fiber adapter 5 connects the other end of double optical fiber head 6 by optical fiber,
ROSA3 connects the other end of single fiber head 11 by optical fiber.
When use, 1 wavelength channels of λ are issued with isolator TOSA, PWDM mould is entered by one end of double optical fiber head 6
Block 4 is collimated into parallel light output through the first self-focus lens 7, and the directional light of output after WDM filter plate 8 by being reflected back
It goes.1 light of λ of reflection converges to the other end of double optical fiber head 6 by the first self-focus lens 7, passes through optical fiber through its output optical fibre
Adapter 5 exports；2 light of λ inputted through fiber adapter enters PWDM module 4 through one end of double optical fiber head 6, through the first autocollimatic
The parallel light output of the straight collimation of lens 7 horizontally, 2 light of λ of horizontal direction output is transmitted by WDM filter plate 8, then is passed through
After 45 degree of prisms, 9 liang of secondary reflections, occurs to enter the second self-focus lens 10 after the displacement in a vertical direction and converge to monochromatic light
Fine head 11 is exported through its output optical fibre and is received by ROSA.
TO CAN with isolator TOSA2 is 50G EML TO CAN, and typical wavelengths are 1295.6nm or 1309.1nm.Band
Isolator TOSA is band refrigeration TO encapsulating structure, and built-in thermoelectric refrigerator, thermoelectric cooler is EML chip controls in stable temperature
Make in degree range Wavelength stabilized in LAN WDM specification limit.ROSA3 uses 50G APD TO CAN, and typical wavelengths are
1309.1nm or 1295.6nm is used with band isolator TOSA pairing.
Band isolator TOSA and ROSA are welded on optical module circuit board by soft board, and optical module circuit board is fixed at
In module housing, the setting of optical module circuit board one end in module housing one end end and the module housing end end be provided with
The interface structure of light module device connection.
Fiber adapter 5 is fixed on 1 other end of module housing and 1 other end end of module housing is provided with LC interface knot
Structure.1 other end of module housing is provided with a lug.Optical module uses QSFP28 packing forms, is also applicable in SFP,
Other packing forms such as SFP28, CFP, CFP2, CFP4.
The utility model uses the debugging format of NRZ with 50G EML TO CAN used in isolator TOSA, can also be used
The debugging format of PAM4 is modulated into 100G and uses under the usage scenario less than or equal to 40km.25G can be used in the utility model
EML TO CAN uses the debugging format of NRZ, uses under the usage scenario of 25G 40km；The debugging lattice of PAM4 can also be used
Formula uses under the usage scenario of 50G 40km.
The utility model is less than using mature band isolator TOSA, ROSA cooperation PWDM module to realize wavelength interval
The function of the single fiber bi-directional transmission of 20nm, while specially designed PWDM module size is small, and SFP28, QSFP28 etc. may be implemented
A variety of encapsulation, whole simplex optical module structure is simple, and packaging process is few, reduces packaging cost.
Above content is only illustrate to examples for clearly illustrating the present invention described in this specification.The utility model
Person of ordinary skill in the field can do various modifications or supplement to described specific embodiment or use similar side
Formula substitution, content without departing from the utility model specification or beyond the scope defined by this claim should all
Belong to the protection scope of the utility model.
Claims (8)
1. the 50G simplex optical module that a kind of wavelength interval is less than 20nm, it is characterised in that: include module housing and setting
In intracorporal band isolator TOSA, ROSA, PWDM module of module case and fiber adapter, PWDM module includes double optical fiber head, the
One self-focus lens, WDM filtering film, 45 degree of prisms, the second self-focus lens and single fiber head, one end of double optical fiber head and first
One end of self-focus lens connects, and WDM filtering film is arranged in the other end of the first self-focus lens, the first self-focus lens and the
Two self-focus lens are each perpendicular to the bevel edge of 45 degree of prisms, and the first self-focus lens output fiber is incident by 45 degree of prism bevel edges
It is received in prism and by being projected after two right-angle side reflections from bevel edge by the second self-focus lens, the second self-focus lens one
End is connect with the first end of single fiber, connects one end of double optical fiber head by optical fiber with isolator TOSA, and fiber adapter passes through light
The other end of fibre connection double optical fiber head, ROSA connect the other end of single fiber head by optical fiber.
2. the 50G simplex optical module that a kind of wavelength interval described in accordance with the claim 1 is less than 20nm, it is characterised in that:
The TO CAN with isolator TOSA is 50G EML TO CAN, and typical wavelengths are 1295.6nm or 1309.1nm.
3. a kind of wavelength interval is less than the 50G simplex optical module of 20nm according to claim 2, it is characterised in that:
The band isolator TOSA is band refrigeration TO encapsulating structure, and built-in thermoelectric refrigerator, thermoelectric cooler is EML chip controls steady
Make within the scope of fixed temperature Wavelength stabilized in LAN WDM specification limit.
4. a kind of wavelength interval is less than the 50G simplex optical module of 20nm according to claim 2, it is characterised in that:
The ROSA uses 50G APD TO CAN, and typical wavelengths are 1309.1nm or 1295.6nm, makes with band isolator TOSA pairing
With.
5. the 50G simplex optical module that a kind of wavelength interval described in accordance with the claim 1 is less than 20nm, it is characterised in that:
Band the isolator TOSA and ROSA are welded on optical module circuit board by soft board, and optical module circuit board is fixed at module
In shell, optical module circuit board one end is arranged in module housing one end end and the module housing end end is provided with and optical mode
The interface structure of block device connection.
6. a kind of wavelength interval is less than the 50G simplex optical module of 20nm according to claim 5, it is characterised in that:
The fiber adapter is fixed on the module housing other end and module housing other end end is provided with LC interface structure.
7. a kind of wavelength interval is less than the 50G simplex optical module of 20nm according to claim 6, it is characterised in that:
The module housing other end is provided with a lug.
8. the 50G simplex optical module that a kind of wavelength interval described in accordance with the claim 1 is less than 20nm, it is characterised in that:
Using QSFP28 packing forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920610898.2U CN209690569U (en) | 2019-04-30 | 2019-04-30 | A kind of wavelength interval is less than the 50G simplex optical module of 20nm |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920610898.2U CN209690569U (en) | 2019-04-30 | 2019-04-30 | A kind of wavelength interval is less than the 50G simplex optical module of 20nm |
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| CN209690569U true CN209690569U (en) | 2019-11-26 |
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| CN201920610898.2U Expired - Fee Related CN209690569U (en) | 2019-04-30 | 2019-04-30 | A kind of wavelength interval is less than the 50G simplex optical module of 20nm |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109917523A (en) * | 2019-04-30 | 2019-06-21 | 武汉兴思为光电科技有限公司 | A kind of wavelength interval is less than the 50G simplex optical module of 20nm |
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2019
- 2019-04-30 CN CN201920610898.2U patent/CN209690569U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109917523A (en) * | 2019-04-30 | 2019-06-21 | 武汉兴思为光电科技有限公司 | A kind of wavelength interval is less than the 50G simplex optical module of 20nm |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200415 Address after: 430205 Dingjie Modern Electrical and Mechanical Information Incubation Park, 219 Guanggu Second Road, Donghu New Technology Development Zone, Wuhan City, Hubei Province Co-patentee after: ZHONGTIAN BROADBAND TECHNOLOGY Co.,Ltd. Patentee after: WUHAN XINGSI OPTOELECTRONICS TECHNOLOGY Co.,Ltd. Address before: 430205 Dingjie Modern Electrical and Mechanical Information Incubation Park, 219 Guanggu Second Road, Donghu New Technology Development Zone, Wuhan City, Hubei Province Patentee before: WUHAN XINGSI OPTOELECTRONICS TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220317 Address after: 226400 Zhongtian Industrial Park, Hekou Town, Rudong County, Nantong City, Jiangsu Province Patentee after: ZHONGTIAN BROADBAND TECHNOLOGY Co.,Ltd. Patentee after: Zhongtian Communication Technology Co.,Ltd. Patentee after: WUHAN XINGSI OPTOELECTRONICS TECHNOLOGY CO.,LTD. Address before: 430205 No. 1, floor 4, building 11, phase I, Dingjie modern electromechanical information Incubation Park, No. 219, Guanggu Second Road, Donghu New Technology Development Zone, Wuhan, Hubei Province Patentee before: WUHAN XINGSI OPTOELECTRONICS TECHNOLOGY CO.,LTD. Patentee before: ZHONGTIAN BROADBAND TECHNOLOGY Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191126 |