CN104767561A - Multi-channel laser output device and testing device for MPO (Maximum Power Output) optical fiber connector - Google Patents
Multi-channel laser output device and testing device for MPO (Maximum Power Output) optical fiber connector Download PDFInfo
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- CN104767561A CN104767561A CN201410002667.5A CN201410002667A CN104767561A CN 104767561 A CN104767561 A CN 104767561A CN 201410002667 A CN201410002667 A CN 201410002667A CN 104767561 A CN104767561 A CN 104767561A
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Abstract
The invention discloses a multi-channel laser output device and a testing device for an MPO (Maximum Power Output) optical fiber connector. The multi-channel laser output device comprises a constant-current driving circuit, a temperature control circuit, a VCSEL (Vertical Cavity Surface Emitting Laser) array and a refrigeration device, wherein the constant-current driving circuit is used for driving the VCSEL array; the temperature control circuit is connected with the VCSEL array and the constant-current driving circuit; the temperature control circuit is provided with a heat sensitive device; both the heat sensitive device and the refrigeration device are attached to the surface of the VCSEL array; and the temperature control circuit is used for converting the temperature of the VCSEL array into an electric signal to be fed back to the constant-current driving circuit. According to the multi-channel laser output device and the testing device for the MPO optical fiber connector, the VCSEL array, the temperature control circuit and the refrigeration device are arranged, so that the multi-channel laser output efficiency is increased, and the cost is low. Meanwhile, the laser output is stable.
Description
Technical field
The present invention relates to the testing apparatus of a kind of multi-channel laser output device and MPO optical fiber connector.
Background technology
Due to optical fiber there is bandwidth, loss is low, lightweight, antijamming capability is strong, fidelity is high, reliable working performance and the feature such as with low cost, instead of information traditional approach gradually in multiple fields such as communication, transfer of data, optical fiber communication becomes current first-selected data transfer solution.
Although the information carrying capacity of the Large Copacity that optical fiber communication provides, high speed, long distance has made people obtain a lot of facility in the transmission of information and acquisition, but people are faster to data transmission bauds, transmission quantity is larger, equipment more saves space-efficient and requires to improve constantly, so more the MPO packaged type of high integration has been born.MPO optical fiber connector and multicore multichannel umbilical connector, the wire jumper with MPO optical fiber connector better can reduce usage space, increase the traffic.Start to widely use wire jumper with MPO optical fiber connector in the world as data transfer solution.China is also at the step immediately following the world, and strengthen the data transmission set of paces follow-up oneself, large-scale data center uses the wire jumper with MPO optical fiber connector to build one after another.
Along with the cable wiring manufacture construction of data center, inevitably with the problem of construction quality inspection, because MPO optical fiber connector is the intensive integrated quick optical fiber connector of multichannel, can not mate with the optical fiber connector of conventional one-channel and compatibility, and existing laser output device only has the single pass optical fiber connector.So existing laser output device needs constantly to reconnect in test optical fiber, could meet the testing requirement of MPO optical fiber connector, can improve time cost so undoubtedly.And if the Laser output needing disposable multiple passages to MPO optical fiber connector all to provide necessary, then must connect laser output device separately at the optical fiber connector end of the plurality of passage respectively, do like this and can greatly raise the cost undoubtedly.
Summary of the invention
The technical problem to be solved in the present invention is merely able to be connected to the single passage of MPO optical fiber connector to overcome laser output device of the prior art and provides Laser output, there is inefficiency and the defect of high cost in the Laser output for multiple passages of MPO optical fiber connector, proposes the testing apparatus of a kind of multi-channel laser output device and MPO optical fiber connector.
The present invention solves above-mentioned technical problem by following technical proposals:
The invention provides a kind of multi-channel laser output device, its feature is, comprise a constant-current drive circuit, a temperature-control circuit, a VCSEL array and refrigeration device, this constant-current drive circuit is connected to this VCSEL array to drive this VCSEL array, this temperature-control circuit connects this VCSEL array and this constant-current drive circuit, this temperature-control circuit is provided with temperature-sensitive device, temperature-sensitive device and refrigeration device are all attached at the surface of this VCSEL array, and it is that the signal of telecommunication feeds back to this constant-current drive circuit that this temperature-control circuit is used for the temperature transition of this VCSEL array.
Above-mentioned VCSEL and vertical cavity surface emitting laser, VCSEL array is arranged as an array in some way by multiple vertical cavity surface emitting laser thus provides the Laser output of multichannel.The luminous power of single VCSEL is greater than 1mW(i.e. 1 milliwatt usually), and MPO optical fiber connector is a high-density connector, thus the present invention is equivalent to be integrated with multiple laser in less area.In this case, the heating that laser power causes just likely makes laser power occur deflecting away from.On the one hand, the refrigeration device being attached at the surface of this VCSEL array plays certain cooling effect.On the other hand, the temperature of this temperature-control circuit to this VCSEL array controls accurately, namely produce the signal of telecommunication by temperature-sensitive device according to the temperature of this VCSEL array and feed back to this constant-current drive circuit, thus by suitably regulating the electric current of constant-current drive circuit to export the normal work ensureing this VCSEL array.
Preferably, this multi-channel laser output device also comprises a single-chip microcomputer, and this single-chip microcomputer is for arranging the running parameter of this constant-current drive circuit.That is, in case of need, can be controlled this constant-current drive circuit by this single-chip microcomputer.
Preferably, this refrigeration device is semiconductor cooling device.
The small volume of semiconductor cooling device, is particularly useful for high-density connector, and this semiconductor cooling device can directly and optical collector be packaged together.
Preferably, this multi-channel laser output device also comprises a key press detecting circuit and some buttons, and the input of this key press detecting circuit connects this some button, output connects this single-chip microcomputer.
This some button for accepting the input of user, this key press detecting circuit by the input of user with electric signal transmission to this single-chip microcomputer, this single-chip microcomputer controls this constant-current drive circuit accordingly according to the signal of telecommunication received.
Preferably, this multi-channel laser output device also comprises USB communication interface, and this USB communication interface is for connecting this single-chip microcomputer and external equipment.USB communication interface and USB (universal serial bus).
Preferably, this multi-channel laser output device also comprises a display circuit, and this display circuit is connected to this single-chip microcomputer and this VCSEL array, and this display circuit is for showing the running parameter of this single-chip microcomputer and this VCSEL array.
Present invention also offers a kind of testing apparatus of MPO optical fiber connector, its feature is, comprise above-mentioned multi-channel laser output device, an orifice plate, a fiber array and a MPO adapter, this VCSEL array connects this orifice plate and this fiber array, this MPO adapter is connected to this fiber array, and the quantity of the perforate on this orifice plate and the optical fiber duct of this fiber array is consistent with arrangement with the quantity of the multiple VCSEL in this VCSEL array respectively with arrangement.
On the basis meeting this area general knowledge, above-mentioned each optimum condition, can combination in any, obtains the preferred embodiments of the invention.
Positive progressive effect of the present invention is:
The testing apparatus of multi-channel laser output device of the present invention and MPO optical fiber connector is by arranging VCSEL array and temperature-control circuit and refrigeration device, thus improve the efficiency of the Laser output of multiple passage and cost is lower, the Laser output simultaneously solving relatively high power when high-density array because temperature raises the problem that may cause Laser output instability.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the multi-channel laser output device of the embodiment of the present invention 1.
Embodiment
Mode below by embodiment further illustrates the present invention, but does not therefore limit the present invention among described scope of embodiments.
Embodiment 1
As shown in Figure 1, the multi-channel laser output device of the present embodiment comprises constant-current drive circuit 1, temperature-control circuit 2, VCSEL array 3, refrigeration device, single-chip microcomputer 4, display circuit 5, USB communication interface 6, key press detecting circuit 7 and some buttons 71.Wherein, this refrigeration device is semiconductor cooling device, and this VCSEL array comprises 12 VCSEL of laid out in parallel.This constant-current drive circuit is connected to this VCSEL array to drive this VCSEL array, this temperature-control circuit connects this VCSEL array and this constant-current drive circuit, this temperature-control circuit is provided with temperature-sensitive device 21, temperature-sensitive device and this semiconductor cooling device are all attached at the surface of this VCSEL array, and it is that the signal of telecommunication feeds back to this constant-current drive circuit that this temperature-control circuit is used for the temperature transition of this VCSEL array.
This single-chip microcomputer is connected with this constant-current drive circuit.The input of this key press detecting circuit connects this some button, output connects this single-chip microcomputer.This USB communication interface is for connecting this single-chip microcomputer and external equipment.USB communication interface and USB (universal serial bus).This multi-channel laser output device also comprises a display circuit, and this display circuit is connected to this single-chip microcomputer and this VCSEL array, and this display circuit is for showing the running parameter of this single-chip microcomputer and this VCSEL array.
Easy understand ground, control program can be prestored in this single-chip microcomputer, for controlling this constant-current drive circuit according to the signal of telecommunication receiving this key press detecting circuit, also the operating state of each VCSEL in the running parameter of each circuit and this VCSEL array is transferred to this display circuit to show simultaneously, thus be convenient to user monitoring.
Embodiment 2
The testing apparatus of the MPO optical fiber connector of embodiment 2, comprise the multi-channel laser output device of embodiment 1, comprise an orifice plate, a fiber array and a MPO adapter in addition, this VCSEL array connects this orifice plate and this fiber array, this MPO adapter is connected to this fiber array, and the quantity of the perforate on this orifice plate and the optical fiber duct of this fiber array is consistent with arrangement with the quantity of the multiple VCSEL in this VCSEL array respectively with arrangement.
Although the foregoing describe the specific embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, protection scope of the present invention is defined by the appended claims.Those skilled in the art, under the prerequisite not deviating from principle of the present invention and essence, can make various changes or modifications to these execution modes, but these change and amendment all falls into protection scope of the present invention.
Claims (7)
1. a multi-channel laser output device, it is characterized in that, comprise a constant-current drive circuit, a temperature-control circuit, a VCSEL array and refrigeration device, this constant-current drive circuit is connected to this VCSEL array to drive this VCSEL array, this temperature-control circuit connects this VCSEL array and this constant-current drive circuit, this temperature-control circuit is provided with temperature-sensitive device, temperature-sensitive device and refrigeration device are all attached at the surface of this VCSEL array, and it is that the signal of telecommunication feeds back to this constant-current drive circuit that this temperature-control circuit is used for the temperature transition of this VCSEL array.
2. multi-channel laser output device as claimed in claim 1, it is characterized in that, this multi-channel laser output device also comprises a single-chip microcomputer, and this single-chip microcomputer is for arranging the running parameter of this constant-current drive circuit.
3. multi-channel laser output device as claimed in claim 1, it is characterized in that, this refrigeration device is semiconductor cooling device.
4. multi-channel laser output device as claimed in claim 2, it is characterized in that, this multi-channel laser output device also comprises a key press detecting circuit and some buttons, and the input of this key press detecting circuit connects this some button, output connects this single-chip microcomputer.
5. multi-channel laser output device as claimed in claim 4, it is characterized in that, this multi-channel laser output device also comprises USB communication interface, and this USB communication interface is for connecting this single-chip microcomputer and external equipment.
6. multi-channel laser output device as claimed in claim 5, it is characterized in that, this multi-channel laser output device also comprises a display circuit, and this display circuit is connected to this single-chip microcomputer and this VCSEL array, and this display circuit is for showing the running parameter of this single-chip microcomputer and this VCSEL array.
7. the testing apparatus of a MPO optical fiber connector, it is characterized in that, comprise as the multi-channel laser output device in claim 1-6 as described in any one, an orifice plate, a fiber array and a MPO adapter, this VCSEL array connects this orifice plate and this fiber array, this MPO adapter is connected to this fiber array, and the quantity of the perforate on this orifice plate and the optical fiber duct of this fiber array is consistent with arrangement with the quantity of the multiple VCSEL in this VCSEL array respectively with arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410002667.5A CN104767561A (en) | 2014-01-03 | 2014-01-03 | Multi-channel laser output device and testing device for MPO (Maximum Power Output) optical fiber connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410002667.5A CN104767561A (en) | 2014-01-03 | 2014-01-03 | Multi-channel laser output device and testing device for MPO (Maximum Power Output) optical fiber connector |
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| CN104767561A true CN104767561A (en) | 2015-07-08 |
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| CN201410002667.5A Pending CN104767561A (en) | 2014-01-03 | 2014-01-03 | Multi-channel laser output device and testing device for MPO (Maximum Power Output) optical fiber connector |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1530681A (en) * | 2003-03-14 | 2004-09-22 | 中国科学院半导体研究所 | Parallel light transmitting module of vertical cavity transmitting laser array and producing method thereof |
| CN201408276Y (en) * | 2009-05-26 | 2010-02-17 | 青岛海信宽带多媒体技术有限公司 | Multi-path parallel optical component |
| US20110103803A1 (en) * | 2009-10-29 | 2011-05-05 | Paul Kolesar | Optical Fiber Array Connectivity System for Multiple Transceivers and/or Multiple Trunk Cables |
| CN203259691U (en) * | 2013-05-07 | 2013-10-30 | 苏州旭创科技有限公司 | Parallel optical transmission-reception assembly for micro serial SCSI broadband high-speed transmission |
| CN103383483A (en) * | 2013-07-19 | 2013-11-06 | 武汉博昇光电技术有限公司 | Parallel optical emission assembly based on 45-degree fiber array and manufacturing method thereof |
-
2014
- 2014-01-03 CN CN201410002667.5A patent/CN104767561A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1530681A (en) * | 2003-03-14 | 2004-09-22 | 中国科学院半导体研究所 | Parallel light transmitting module of vertical cavity transmitting laser array and producing method thereof |
| CN201408276Y (en) * | 2009-05-26 | 2010-02-17 | 青岛海信宽带多媒体技术有限公司 | Multi-path parallel optical component |
| US20110103803A1 (en) * | 2009-10-29 | 2011-05-05 | Paul Kolesar | Optical Fiber Array Connectivity System for Multiple Transceivers and/or Multiple Trunk Cables |
| CN203259691U (en) * | 2013-05-07 | 2013-10-30 | 苏州旭创科技有限公司 | Parallel optical transmission-reception assembly for micro serial SCSI broadband high-speed transmission |
| CN103383483A (en) * | 2013-07-19 | 2013-11-06 | 武汉博昇光电技术有限公司 | Parallel optical emission assembly based on 45-degree fiber array and manufacturing method thereof |
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Application publication date: 20150708 |