CN204231363U - A kind of 40G long distance pluggable optical module - Google Patents
A kind of 40G long distance pluggable optical module Download PDFInfo
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- CN204231363U CN204231363U CN201420587390.2U CN201420587390U CN204231363U CN 204231363 U CN204231363 U CN 204231363U CN 201420587390 U CN201420587390 U CN 201420587390U CN 204231363 U CN204231363 U CN 204231363U
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Abstract
The utility model is applicable to optical module technical field, a kind of 40G long distance pluggable optical module is provided, comprise interface unit, Optical Transmit Unit, light receiving unit, described Optical Transmit Unit, light receiving unit are all connected with the described interface unit multipath high-speed signal of telecommunication; Wherein, described Optical Transmit Unit comprises the processing unit that transmits, driver element, modulating unit, the Optical Multiplexer Unit that connect in turn; Described light receiving unit comprises the Optical Amplifier Unit, Optical Demultiplexing Unit, photoelectric conversion unit, the Received signal strength processing unit that connect in turn.The utility model is by adopting driver and modulating unit at transmitting chain, and receiver adopts image intensifer and photoelectric conversion unit, can realize maximum transmission distance and reach 80km, be far longer than the optical transport distance of existing standard 40G pluggable optical module.
Description
Technical field
The utility model belongs to optical module technical field, particularly relates to a kind of 40G long distance pluggable optical module.
Background technology
IEEE has defined the CFP pluggable optical module of 40G10km and 40km.The CFP optical module transmitting chain of 10km with 40km is substantially identical, all adopts driver and DML directly modulated laser.Receiver all adopts opto-electronic conversion receiver, but receiving sensitivity is different, and the former receiving sensitivity is low, and the latter's receiving sensitivity is high.Electrical interface all follows CFPMSA agreement.The CFP optical module Optical Fiber Transmission distance of 40G10km and 40km is no more than 40km.
Utility model content
In view of the above problems, the purpose of this utility model is to provide a kind of 40G long distance pluggable optical module, the 40GCFP optical module transmission range being intended to solve Current standards definition cannot can meet employing WDM networking more than technical problem the utility model optical module of 40km, and transmission range is greater than 40km metropolitan area network.
The utility model adopts following technical scheme:
Described 40G long distance pluggable optical module comprises:
Interface unit, as the electrical connection interface of optical module and equipment;
Optical Transmit Unit, changes optical signal launch into go out for receiving the signal of telecommunication that comes from described interface unit and passing;
Light receiving unit, is sent to described interface unit for receiving the light signal that comes from optical fiber and it being converted into the signal of telecommunication;
Described Optical Transmit Unit, light receiving unit are all connected with the described interface unit multipath high-speed signal of telecommunication;
Wherein, described Optical Transmit Unit comprises the processing unit that transmits, driver element, modulating unit, the Optical Multiplexer Unit that connect in turn; Described light receiving unit comprises the Optical Amplifier Unit, Optical Demultiplexing Unit, photoelectric conversion unit, the Received signal strength processing unit that connect in turn;
The described processing unit that transmits for carrying out equilibrium treatment to the multi-channel electric signal coming from interface unit, and after preemphasis and amplification, outputs to driver element;
Described driver element is used for the high-speed electrical signals received to amplify, and makes signal amplitude reach the requirement of modulating unit;
Described modulating unit is used for carrying out modulation treatment to the multi-channel electric signal received, and exports modulated light signal;
Described Optical Multiplexer Unit is used for multichannel modulated light signal being multiplexed into an optical fiber and exports;
Described Optical Amplifier Unit is used for carrying out power amplification to the light signal received and exporting Optical Demultiplexing Unit to;
Described Optical Demultiplexing Unit is used for the light signal received to be divided into multipath light signal, and exports photoelectric conversion unit to;
Described photoelectric conversion unit is used for after converting the multipath high-speed signal of telecommunication to, exporting described multipath light signal to Received signal strength processing unit;
Described Received signal strength processing unit outputs to described interface unit after being used for carrying out equilibrium, amplification to the described multipath high-speed signal of telecommunication.
The beneficial effects of the utility model are: the 40G that the utility model provides long distance CFP optical module, its transmitting chain adopts driver and modulating unit, the optional EML Electroabsorption Modulated Laser of described modulating unit, receiver adopts image intensifer and photoelectric conversion unit, can realize maximum transmission distance and reach 80km.
Accompanying drawing explanation
Fig. 1 is the structure chart of the 40G long distance pluggable optical module that the utility model embodiment provides;
Fig. 2 is the preferred structure figure of the 40G long distance pluggable optical module that the utility model embodiment provides;
Fig. 3 is the structure chart of the Optical Amplifier Unit that the utility model embodiment provides.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
In order to technical scheme described in the utility model is described, be described below by specific embodiment.
Fig. 1 shows the structure of the 40G long distance pluggable optical module that the utility model embodiment provides, and illustrate only the part relevant to the utility model embodiment for convenience of explanation.
The described 40G long distance pluggable optical module that the present embodiment provides comprises:
Interface unit 1, as the electrical connection interface of optical module and equipment;
Optical Transmit Unit 2, changes optical signal launch into go out for receiving the signal of telecommunication that comes from described interface unit and passing;
Light receiving unit 3, is sent to described interface unit for receiving the light signal that comes from optical fiber and it being converted into the signal of telecommunication;
Described Optical Transmit Unit 2, light receiving unit 3 are all connected with the described interface unit 1 multipath high-speed signal of telecommunication.
Concrete, as shown in Figure 2, described Optical Transmit Unit 2 comprises the processing unit 21 that transmits, driver element 22, modulating unit 23, the Optical Multiplexer Unit 24 that connect in turn; Described light receiving unit 3 comprises the Optical Amplifier Unit 31, Optical Demultiplexing Unit 32, photoelectric conversion unit 33, the Received signal strength processing unit 34 that connect in turn;
The described processing unit 21 that transmits for carrying out equilibrium treatment to the multi-channel electric signal coming from interface unit, and after preemphasis and amplification, outputs to driver element;
Described driver element 22 amplifies for the high-speed electrical signals that will receive, and makes signal amplitude reach the requirement of modulating unit;
Described modulating unit 23, for carrying out modulation treatment to the multi-channel electric signal received, exports modulated light signal;
Described Optical Multiplexer Unit 24 exports for multichannel modulated light signal being multiplexed into an optical fiber;
Described Optical Amplifier Unit 31 is for carrying out power amplification to the light signal received and exporting Optical Demultiplexing Unit to;
Described Optical Demultiplexing Unit 32 for the light signal received is divided into multipath light signal, and exports photoelectric conversion unit to;
Described photoelectric conversion unit 33 for exporting described multipath light signal to Received signal strength processing unit after converting the multipath high-speed signal of telecommunication to;
Described Received signal strength processing unit 34 for the described multipath high-speed signal of telecommunication is carried out equilibrium, amplify after, output to described interface unit.
In use, optical module is inserted relevant device, the optical module other end inserts optical fiber, the light signal come from optical fiber inputs to equipment after optical module opto-electronic conversion, the signal of telecommunication exported from equipment exports optical fiber to after optical module electro-optic conversion, and interface unit is as the data transmission interface of optical module and equipment here.Photoelectric conversion unit described here can select PIN/TIA receiver, should be noted that receiver enter luminous power can not exceed its overload luminous power.
As shown in Figure 2, in the present embodiment, interface unit is 148 pins.On the one hand, enter from 4 tunnel high-speed electrical signals of interface unit input the processing unit that transmits, after the processing unit that transmits carries out equilibrium, preemphasis and amplification process to the signal of telecommunication, export driver element to; 4 tunnel high-speed electrical signals are amplified by described driver element, make signal amplitude reach modulating unit requirement; Described modulating unit is modulated the signal of telecommunication received, and exports 4 road modulated light signals; The 4 road optical multiplexed signals that modulating unit exports by described Optical Multiplexer Unit use an optical fiber.On the other hand, optical module receives end light signal and first enters Optical Amplifier Unit and carry out power amplification, and the light signal after amplification enters Optical Demultiplexing Unit, is divided into 4 road light signals and outputs to photoelectric conversion unit; Described photoelectric conversion unit outputs to Received signal strength processing unit after converting 4 road light signals to 4 tunnel high-speed electrical signals; Described Received signal strength processing unit carries out equilibrium to 4 tunnel high-speed electrical signals and after amplifying, outputs to interface unit.As preferably, described in transmit processing unit and Received signal strength processing unit can adopt Single-Chip Integration scheme, also can adopt two chip solution.High-speed electrical signals is amplified by described driver element, and enlargement range needs to determine according to rear class modulating unit.The optional Electroabsorption Modulated Laser of described modulating unit (EML), its dispersion tolerance need reach 1600ps/nm, to meet 80km Optical Fiber Transmission.
As the concrete preferred structure of one of described Optical Amplifier Unit 31, as shown in Figure 3, described Optical Amplifier Unit 31 comprises: optical isolator element 311, input coupling unit 312, conjunction ripple unit 313, optical amplification medium unit 314 and output coupling unit 315, input optical power detecting unit 316, Output optical power detecting unit 317, pump laser unit 318, described Optical Amplifier Unit also comprises the control unit 319 be connected with described input optical power detecting unit 316, Output optical power detecting unit 317 and pump laser unit 318.In the present embodiment, described optical isolator element 311 reveals as preventing reverse spontaneous emission noise and pumping light power the input passing to optical isolator element, described input coupling unit 312 exports two paths of signals light, wherein a road flashlight exports input optical power detecting unit 316 to, another road flashlight outputs to and closes ripple unit 313, described pump laser unit 318 exports pump light signals to described Optical Multiplexer Unit 313, after described conjunction ripple unit 313 closes ripple process, output optical signal completes pump energy to optical amplification medium unit and transfers to flashlight, flashlight is exaggerated, optical amplification medium unit 314 output optical signal is to exporting coupling unit 315, described output coupling unit 315 exports two ways of optical signals, one road light signal exports Output optical power detecting unit 317 to, another road light signal exports Optical Demultiplexing Unit 32 to, described control unit 319 is for detecting the input optical power signal of input optical power detecting unit output and reporting, and for detecting the Output optical power signal that Output optical power detecting unit exports, also for controlling the Output optical power of pumping laser element, to control the Output optical power of whole Optical Amplifier Unit.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection range of the present utility model.
Claims (4)
1. a 40G long distance pluggable optical module, it is characterized in that, described optical module comprises:
Interface unit, as the electrical connection interface of optical module and equipment;
Optical Transmit Unit, changes optical signal launch into go out for receiving the signal of telecommunication that comes from described interface unit and passing;
Light receiving unit, is sent to described interface unit for receiving the light signal that comes from optical fiber and it being converted into the signal of telecommunication;
Described Optical Transmit Unit, light receiving unit are all connected with the described interface unit multipath high-speed signal of telecommunication;
Wherein, described Optical Transmit Unit comprises the processing unit that transmits, driver element, modulating unit, the Optical Multiplexer Unit that connect in turn; Described light receiving unit comprises the Optical Amplifier Unit, Optical Demultiplexing Unit, photoelectric conversion unit, the Received signal strength processing unit that connect in turn;
The described processing unit that transmits for carrying out equilibrium treatment to the multi-channel electric signal coming from interface unit, and after preemphasis and amplification, outputs to driver element;
Described driver element is used for the high-speed electrical signals received to amplify, and makes signal amplitude reach the requirement of modulating unit;
Described modulating unit is used for carrying out modulation treatment to the multi-channel electric signal received, and exports modulated light signal;
Described Optical Multiplexer Unit is used for multichannel modulated light signal being multiplexed into an optical fiber and exports;
Described Optical Amplifier Unit is used for carrying out power amplification to the light signal received and exporting Optical Demultiplexing Unit to;
Described Optical Demultiplexing Unit is used for the light signal received to be divided into multipath light signal, and exports photoelectric conversion unit to;
Described photoelectric conversion unit is used for after converting the multipath high-speed signal of telecommunication to, exporting described multipath light signal to Received signal strength processing unit;
Described Received signal strength processing unit outputs to described interface unit after being used for carrying out equilibrium, amplification to the described multipath high-speed signal of telecommunication.
2. 40G is long apart from pluggable optical module as claimed in claim 1, it is characterized in that, described Optical Amplifier Unit comprises optical isolator element, input coupling unit, closes ripple unit, optical amplification medium unit and export coupling unit, input optical power detecting unit, Output optical power detecting unit, pump laser unit, and described Optical Amplifier Unit also comprises the control unit be connected with described input optical power detecting unit, Output optical power detecting unit and pump laser unit, described optical isolator element reveals as preventing reverse spontaneous emission noise and pumping light power the input passing to optical isolator element, described input coupling unit exports two paths of signals light, wherein a road flashlight exports input optical power detecting unit to, another road flashlight outputs to and closes ripple unit, described pump laser unit exports pump light signals to described Optical Multiplexer Unit, after described conjunction ripple unit closes ripple process, output optical signal completes pump energy to optical amplification medium unit and transfers to flashlight, flashlight is exaggerated, optical amplification medium unit output optical signal is to exporting coupling unit, described output coupling unit exports two ways of optical signals, one road light signal exports Output optical power detecting unit to, another road light signal exports Optical Demultiplexing Unit to, described control unit is for detecting the input optical power signal of input optical power detecting unit output and reporting, and for detecting the Output optical power signal that Output optical power detecting unit exports, also for controlling the Output optical power of pumping laser element, to control the Output optical power of whole Optical Amplifier Unit.
3. 40G long distance pluggable optical module as claimed in claim 2, is characterized in that, described in transmit processing unit and Received signal strength processing unit is realized by chip piece or realized respectively by independently two chip blocks.
4. 40G is long apart from pluggable optical module as claimed in claim 3, and it is characterized in that, described modulating unit is Electroabsorption Modulated Laser, and its dispersion tolerance reaches 1600ps/nm, to meet 80km Optical Fiber Transmission.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420587390.2U CN204231363U (en) | 2014-10-10 | 2014-10-10 | A kind of 40G long distance pluggable optical module |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420587390.2U CN204231363U (en) | 2014-10-10 | 2014-10-10 | A kind of 40G long distance pluggable optical module |
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| CN204231363U true CN204231363U (en) | 2015-03-25 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104301040A (en) * | 2014-10-10 | 2015-01-21 | 武汉电信器件有限公司 | 40 G long-distance pluggable optical module |
| CN110892650A (en) * | 2017-07-14 | 2020-03-17 | 日本电气株式会社 | Pluggable optical module, optical communication system, and control method for pluggable optical module |
-
2014
- 2014-10-10 CN CN201420587390.2U patent/CN204231363U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104301040A (en) * | 2014-10-10 | 2015-01-21 | 武汉电信器件有限公司 | 40 G long-distance pluggable optical module |
| CN110892650A (en) * | 2017-07-14 | 2020-03-17 | 日本电气株式会社 | Pluggable optical module, optical communication system, and control method for pluggable optical module |
| US11342991B2 (en) | 2017-07-14 | 2022-05-24 | Nec Corporation | Pluggable optical module, optical communication system, and control method of pluggable optical module |
| CN110892650B (en) * | 2017-07-14 | 2022-12-09 | 日本电气株式会社 | Pluggable optical module, optical communication system, and control method for pluggable optical module |
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