CN108089261B - A kind of tunable laser integrates the coupling adjustment method of wave lock - Google Patents
A kind of tunable laser integrates the coupling adjustment method of wave lock Download PDFInfo
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- CN108089261B CN108089261B CN201711337557.4A CN201711337557A CN108089261B CN 108089261 B CN108089261 B CN 108089261B CN 201711337557 A CN201711337557 A CN 201711337557A CN 108089261 B CN108089261 B CN 108089261B
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- collimator
- power meter
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- 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
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B6/12007—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind forming wavelength selective elements, e.g. multiplexer, demultiplexer
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Abstract
The present invention relates to a kind of coupling adjustment methods, belong to technical field of photo communication, are specifically related to a kind of coupling adjustment method of integrated wave lock of tunable laser.Include: by the optical signal of ASE light source after the first port of coupler and second port are coupled to collimator, the reflected light that obtains backtracking to one-to-two coupler is divided through optical splitter to reflective mirror again, and the second end number and third port by the reflected light through coupler are coupled to light power meter；Relative position when adjusting the relative position of the optical splitter and the collimator, and the light power meter obtaining to maximum value is as the optimum position of the two.Therefore, the present invention has the advantage that (1) is the problem that silicon photon field laser is difficult to realize, a solution is provided；(2) it proposes a kind of efficiently feasible laser coupling adjustment method with universality, overcomes the shortcomings of existing methods.
Description
Technical field
The present invention relates to a kind of coupling adjustment methods, belong to technical field of photo communication, are specifically related to a kind of tunable sharp
Light device integrates the coupling adjustment method of wave lock.
Background technique
In recent years, the optical transport that is concerned with is had increasingly been used in optical communication system.With Internet data center pair
The explosive growth of optic communication device demand, 100G/400G optical device have become the mainstream optic communication device of this generation.Mesh
Before, tunable laser has gradually become one of the device of most critical in high-speed high capacity optical communication system as light source,
Because of the characteristic of its wideband adjustable, save the cost, management, the flexible network structure of building and in terms of all play
Important and crucial effect.For next-generation optical-fiber network, tunable laser is to realize the key factor of Intelligent Optical Network,
Bigger elasticity, faster wavelength supply rate can be provided for operator, and finally realize lower cost.The following long-haul optical network
It will be the world of wavelength dynamical system, these networks can realize new Wavelength Assignment in a short period of time, due to using super
Long range transmission technology and need not use regenerator, to save expensive.Tunable laser is hopeful as following communication
Network provides new tool, carrying out wavelength management, improving network efficiency and developing next-generation optical-fiber network.One most attracted answers
With being reconfigurable OADM (ROADM).Dynamically reconfigurable network system will appear in the network market, big to adjust
Therefore the tunable laser of adjusting range also will obtain bigger demand.
Especially in dwdm system, tunable laser can not only provide powerful backup and can reduce system
Operation and maintenance difficulty.Simultaneity factor also require laser can it is accurate and steadily be tuned to standard channel, so wavelength is locked
Technology is determined as one of problem the most key in tunable laser use process.Current existing wave locking method principle is common
Be all to be assigned on etalon by the part that laser is gone out light about 5% as wavelength monitor.Due to Fabry Perot mark
The selecting frequency characteristic that standard has, we want to obtain desired wavelength using it, and its available wavelength is the transmission spectrum by etalon
Come what is determined, under the premise of etalon thick is certain, side frequency interval and the incidence of transmission spectrum and maximum transmission rate
Angle is related, so it to be adjusted to a suitable angle, it just can be by wavelength locking in ideal position.The party is taken at present
The some of case is more using device count, debugs complexity；Some does not consider placement position and the angle pair of device carefully
The influence that Yu Bosuo is adjusted, the position of some wavelength locking is unsatisfactory, is unfavorable for subsequent adjusting；And in these methods all
One effective specific coupling adjustment method is not provided.
Tunable laser is always research hotspot in recent years, and in addition to high performance laser, user is with greater need for looking for
It is made good use of to an effective method, its effect could be played to greatest extent in this way.
Summary of the invention
The present invention is mainly to solve technical problem above-mentioned present in the prior art, provides a kind of tunable laser
The coupling adjustment method of integrated wave lock.This method has universality, and the method can be used for all tunable laser
Coupling debugging is carried out to realize that wave is locked.
Above-mentioned technical problem of the invention is mainly to be addressed by following technical proposals:
A kind of tunable laser integrates the coupling adjustment method of wave lock, comprising:
Collimator position set-up procedure couples power meter through spectroscope, collimator for tunable laser source, by power
The position of collimator when meter output power maximum value is as its optimum position；
Mirror position set-up procedure couples collimator again through optical splitter point through coupler for the optical signal of ASE light source
Light obtains the reflected light of backtracking to coupler (102) to reflective mirror, and the reflection optical coupler is bonded to light power meter, adjusts
The position of reflective mirror is saved, the position of reflective mirror when using light power meter output power maximum value is as its optimum position；
Collimator position set-up procedure, the light that goes out after tuning laser light source is powered on are coupled into collimation after spectroscope
Access power meter again after device；Collimator position is adjusted, the position of collimator when by by light power meter output power maximum value is made
For its optimum position；
Mark tool position set-up procedure, ASE light source initial light deposit into spectrometer, and ASE light source goes out light by spectroscope and reflective
Mirror back reflection light enters etalon, then accesses spectrometer after being coupled into the collimator for having determined good position in previous step,
It adjusts the position of etalon and observes spectrometer, until output wavelength is locked in the range of ITU-T standard regulation.
Preferably, a kind of above-mentioned tunable laser integrates the coupling adjustment method of wave lock, spectroscope position tune
During synchronizing is rapid, tunable laser source, spectroscope, collimator, power meter are placed on coupling table and are in after sustained height again
Adjust the relative position of spectroscope and collimator.
Preferably, a kind of above-mentioned tunable laser integrates the coupling adjustment method of wave lock, and the coupler is one point
Two couplers.
Preferably, a kind of above-mentioned tunable laser integrates the coupling adjustment method of wave lock, mirror position adjustment step
In rapid, by the optical signal of ASE light source after the first port of coupler and second port are coupled to collimator, then through optical splitter point
Light obtains the reflected light of backtracking to coupler (102), the second end by the reflected light through coupler to reflective mirror
Number and third port be coupled to light power meter.
Therefore, the present invention has the advantage that
(1) problem being difficult to realize for silicon photon field laser, provides a solution；
(2) it proposes a kind of efficiently feasible laser coupling adjustment method with universality, overcomes the shortcomings of existing methods；
Detailed description of the invention
Fig. 1 is the structural schematic diagram that tunable laser integrates wave lock coupling debugging step one；
Fig. 2 is the structural schematic diagram that tunable laser integrates wave lock coupling debugging step two；
Fig. 3 is the structural schematic diagram that tunable laser integrates wave lock coupling debugging step three；
Fig. 4 is the structural schematic diagram that tunable laser integrates wave lock coupling debugging step four；
Wherein:
101: tunable laser source (TLS)；102: spectroscope:
103: collimator；104: power meter；
201:ASE light source；202: circulator；
203: reflective mirror；301: collimator；
401: etalon；402: spectrometer.
Specific embodiment
Below with reference to the embodiments and with reference to the accompanying drawing the technical solutions of the present invention will be further described.
Embodiment:
Fig. 1 is the structural schematic diagram that tunable laser integrates wave lock coupling debugging step one.Tunable laser source
(TLS) 101, required light source is debugged for providing.By tunable laser source (TLS) 101 and spectroscope 102, collimator 103,
Power meter 104 is placed on coupling table and is in same centre-height.After being powered on to tunable laser source (TLS) 101
It will export optically coupling to collimator, the output light ingoing power meter 104 of collimator observes watt level.Adjust collimator 103
Position and the numerical value for observing power meter 104 are believed that the position of collimator has been adjusted to most when output power reaches maximum value
It is good.According to step 2 shown in Fig. 2 after completion step 1, ASE light source 201, circulator 202 and reflective mirror 203 are placed in coupling
On platform and it is in same centre-height.ASE light source 201 goes out the port 1 that light enters circulator 202, and port 2 goes out optical coupling
Into collimator 103, light is got to 102 upper rear portion of spectroscope and is reflected on reflective mirror 203.Reflected light is backed into along original optical path
Go out soft exchange power meter 104 from port 3 after to 202 port 2 of circulator, monitors the watt level of output light.Adjust reflective mirror 203
Position and observe the size of output light, until output power is adjusted to maximum value, reflective mirror 203 can be fixed on the optimum bit
It sets.According to step 3 shown in Fig. 3 after completion step 2, by tunable laser source (TLS) 101, spectroscope 102 and collimator
301 are placed on coupling table and are in same centre-height.Tuning laser light source (TLS) 101 goes out light through excessive after powering on
Collimator 301 is coupled into after light microscopic 102, light accesses power meter 104 after coming out from collimator 301 to monitor Output optical power
Size.It adjusts the position of collimator 301 and observes the size of output light, it, can will be reflective until output power is adjusted to maximum value
Mirror 203 is fixed on the optimum position.Complete after step 3 according to step 4 shown in Fig. 4, by ASE light source 201, collimator 103,
Spectroscope 102, reflective mirror 203, etalon 401, spectrometer 402 and collimator 301 are placed on coupling table and are at same
In centre-height.201 initial light of ASE light source deposits into spectrometer 402.ASE light source 201 goes out light and passes through spectroscope 102 and reflective mirror
203 back reflection light enter etalon 401, then are coupled into the collimator 301 that good position is had determined in previous step, and light passes through
Spectrometer 402 is accessed after collimator 301, adjust the position of etalon 401 and observes spectrometer, until output wavelength is locked in
In the range of ITU-T standard regulation.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Claims (2)
1. the coupling adjustment method that a kind of tunable laser integrates wave lock characterized by comprising
First collimator position set-up procedure, by tunable laser source (101) through spectroscope (102), first collimator (103)
Light power meter (104) are coupled to, the position of the first collimator (103) when by light power meter (104) output power maximum value is made
For its optimum position；
Mirror position set-up procedure couples first collimator through circulator (202) for the optical signal of ASE light source (201)
(103) reflected light that obtains backtracking to circulator (202) is divided through spectroscope (102) to reflective mirror (203) again, it will
The reflection optical coupler is bonded to light power meter (104), adjusts the position of reflective mirror (203), most by light power meter (104) output power
The position of reflective mirror (203) when big value is as its optimum position；
Second collimator position set-up procedure goes out light coupling after spectroscope (102) after powering on tuning laser light source (101)
It closes and accesses light power meter (104) again after entering the second collimator (301)；The second collimator (301) position is adjusted, by light power meter
(104) position of the second collimator (301) when output power maximum value is as its optimum position；
Etalon position set-up procedure, ASE light source (201) initial light deposit into spectrometer (402), and ASE light source (201) goes out light process
Spectroscope (102) and reflective mirror (203) back reflection light enter etalon (401), then are coupled into previous step and have determined
The second collimator (301) of good position accesses spectrometer (402) afterwards, adjusts the position of etalon (401) and observes spectrometer
(402), until output wavelength is locked in the range of ITU-T standard regulation.
2. the coupling adjustment method that a kind of tunable laser according to claim 1 integrates wave lock, which is characterized in that anti-
First port and second port coupling in the set-up procedure of light microscopic position, by the optical signal of ASE light source (201) through circulator (202)
After being bonded to first collimator (103), then through spectroscope (102) light splitting to reflective mirror (203) to obtain backtracking to annular
The reflected light of device (202), second end number and third port by the reflected light through circulator (202) are coupled to light power meter
(104)。
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| CN201711337557.4A CN108089261B (en) | 2017-12-14 | 2017-12-14 | A kind of tunable laser integrates the coupling adjustment method of wave lock |
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| CN201711337557.4A CN108089261B (en) | 2017-12-14 | 2017-12-14 | A kind of tunable laser integrates the coupling adjustment method of wave lock |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102545007A (en) * | 2012-02-08 | 2012-07-04 | 武汉奥新科技有限公司 | Tunable laser and method for locking and monitoring wavelength of tunable laser |
| CN105514781A (en) * | 2016-01-11 | 2016-04-20 | 深圳新飞通光电子技术有限公司 | Wavelength locking device |
| CN205406952U (en) * | 2016-02-23 | 2016-07-27 | 杨兴 | Tunable laser |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7257142B2 (en) * | 2004-03-29 | 2007-08-14 | Intel Corporation | Semi-integrated designs for external cavity tunable lasers |
| JP5193732B2 (en) * | 2008-08-07 | 2013-05-08 | 富士通株式会社 | Wavelength tunable laser module, wavelength tunable laser apparatus, and wavelength tunable laser control method |
-
2017
- 2017-12-14 CN CN201711337557.4A patent/CN108089261B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102545007A (en) * | 2012-02-08 | 2012-07-04 | 武汉奥新科技有限公司 | Tunable laser and method for locking and monitoring wavelength of tunable laser |
| CN105514781A (en) * | 2016-01-11 | 2016-04-20 | 深圳新飞通光电子技术有限公司 | Wavelength locking device |
| CN205406952U (en) * | 2016-02-23 | 2016-07-27 | 杨兴 | Tunable laser |
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| CN108089261A (en) | 2018-05-29 |
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