JP2007109765A - 波長可変光送信器および光送受信器 - Google Patents
波長可変光送信器および光送受信器 Download PDFInfo
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- 230000003287 optical effect Effects 0.000 title claims abstract description 83
- 230000005540 biological transmission Effects 0.000 claims abstract description 47
- 239000004065 semiconductor Substances 0.000 claims abstract description 42
- 230000010355 oscillation Effects 0.000 claims abstract description 26
- 238000010521 absorption reaction Methods 0.000 claims abstract description 13
- 239000000758 substrate Substances 0.000 claims abstract description 12
- 229910000530 Gallium indium arsenide Inorganic materials 0.000 claims description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 2
- KXNLCSXBJCPWGL-UHFFFAOYSA-N [Ga].[As].[In] Chemical compound [Ga].[As].[In] KXNLCSXBJCPWGL-UHFFFAOYSA-N 0.000 claims description 2
- MDPILPRLPQYEEN-UHFFFAOYSA-N aluminium arsenide Chemical compound [As]#[Al] MDPILPRLPQYEEN-UHFFFAOYSA-N 0.000 claims description 2
- 229910052738 indium Inorganic materials 0.000 claims description 2
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims description 2
- 229910052698 phosphorus Inorganic materials 0.000 claims description 2
- 239000011574 phosphorus Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 18
- 230000008033 biological extinction Effects 0.000 description 13
- 230000007423 decrease Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 230000003068 static effect Effects 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 4
- 241000208140 Acer Species 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000003491 array Methods 0.000 description 2
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- 229910003327 LiNbO3 Inorganic materials 0.000 description 1
- 238000000862 absorption spectrum Methods 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 230000002431 foraging effect Effects 0.000 description 1
- GQYHUHYESMUTHG-UHFFFAOYSA-N lithium niobate Chemical compound [Li+].[O-][Nb](=O)=O GQYHUHYESMUTHG-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 230000005701 quantum confined stark effect Effects 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/50—Transmitters
- H04B10/501—Structural aspects
- H04B10/503—Laser transmitters
- H04B10/505—Laser transmitters using external modulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/50—Transmitters
- H04B10/501—Structural aspects
- H04B10/503—Laser transmitters
- H04B10/504—Laser transmitters using direct modulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/50—Transmitters
- H04B10/572—Wavelength control
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
- H01S5/062—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying the potential of the electrodes
- H01S5/0625—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying the potential of the electrodes in multi-section lasers
- H01S5/06251—Amplitude modulation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
- H01S5/068—Stabilisation of laser output parameters
- H01S5/06804—Stabilisation of laser output parameters by monitoring an external parameter, e.g. temperature
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
- H01S5/068—Stabilisation of laser output parameters
- H01S5/0683—Stabilisation of laser output parameters by monitoring the optical output parameters
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- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optics & Photonics (AREA)
- Semiconductor Lasers (AREA)
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
Abstract
【解決手段】一つの電界吸収型変調器集積レーザを搭載し、温度調整によって発振波長を可変にするDWDM用波長可変レーザモジュールを使用する。温度調整範囲において、ほぼ同等の変調・伝送特性を有するようにレーザおよび変調器の駆動条件を決定する。このような電界吸収型変調器集積レーザを用い、駆動条件を内蔵することで、小型低コストな波長可変光送信器を提供することができる。
【選択図】図1
Description
レーザ駆動電流ドライバ112は、レーザ駆動電流制御回路116が設定した駆動電流をEA/DFB素子101のDFB-LD部に入力する。
なお、本明細書において、光送信器には光送受信器を含む。
Claims (8)
- 電界吸収型変調器と半導体レーザとが基板上に集積された電界吸収型変調器集積レーザと、前記電界吸収型変調器集積レーザの温度を調整する温度制御部と、前記半導体レーザを駆動するレーザ駆動部と、前記電界吸収型変調器を駆動する変調器駆動部とからなる波長可変光送信器であって、
前記温度制御部は、前記電界吸収型変調器集積レーザの温度を変化させることによって、前記半導体レーザの発振波長について3nm以上の波長範囲で可変とし、
前記レーザ駆動部と前記変調器駆動部とは、前記波長範囲において、前記電界吸収型変調器集積レーザが概ね同じ変調特性および伝送特性となるように、前記半導体レーザおよび前記電界吸収型変調器を駆動することを特徴とする波長可変光送信器。 - 電界吸収型変調器と半導体レーザとが基板上に集積された電界吸収型変調器集積レーザと、前記電界吸収型変調器集積レーザの温度を調整する温度制御部と、前記半導体レーザを駆動するレーザ駆動部と、前記電界吸収型変調器を駆動する変調器駆動部とからなる波長可変光送信器であって、
前記レーザ駆動部は、前記温度制御部によって与えられる温度差30℃以上の温度範囲で、前記半導体レーザに印加する電流を、温度に依存して変化させ、
前記変調器駆動部は、前記温度範囲で、前記電界吸収型変調器に印加する高周波信号の振幅電圧と前記電界吸収型変調器に印加する逆電圧とを、温度に依存して変化させることを特徴とする波長可変光送信器。 - 請求項1または請求項2に記載の波長可変光送信器であって、
前記電界吸収型変調器は、インジウムガリウムアルミニウム砒素を材料とする多重量子井戸から構成されることを特徴とする波長可変光送信器。 - 請求項1または請求項2に記載の波長可変光送信器であって、
前記電界吸収型変調器は、インジウムガリウム砒素燐を材料とする多重量子井戸から構成されることを特徴とする波長可変光送信器。 - 請求項1ないし請求項4のいずれか一に記載の波長可変光送信器であって、
前記半導体レーザは、分布帰還型レーザまたは分布反射型レーザであることを特徴とする波長可変光送信器。 - 請求項1ないし請求項5のいずれか一に記載の波長可変光送信器であって、
前記電界吸収型変調器集積レーザは2.5Gbit/s以上の伝送速度において動作することを特徴とする波長可変光送信器。 - 電界吸収型変調器と半導体レーザとが半導体基板上に集積された電界吸収型変調器集積レーザとこの電界吸収型変調器集積レーザの温度を調整する温度制御部と搭載する波長可変レーザモジュールと、前記半導体レーザを駆動するレーザ駆動部と、前記電界吸収型変調器を駆動する変調器駆動部とを含む波長可変光送信器と、
受信した光信号を電気信号に変換する光受信モジュールを含む光受信器と、
からなる光送受信器であって、
前記温度制御部は、前記電界吸収型変調器集積レーザの温度を変化させることによって、前記半導体レーザの発振波長について3nm以上の波長範囲で可変とし、
前記レーザ駆動部と前記変調器駆動部とは、前記波長範囲において、前記電界吸収型変調器集積レーザが概ね同じ変調特性および伝送特性となるように、前記半導体レーザおよび前記電界吸収型変調器を駆動することを特徴とする光送受信器。 - 電界吸収型変調器と半導体レーザとが半導体基板上に集積された電界吸収型変調器集積レーザとこの電界吸収型変調器集積レーザの温度を調整する温度制御部と搭載する波長可変レーザモジュールと、前記半導体レーザを駆動するレーザ駆動部と、前記電界吸収型変調器を駆動する変調器駆動部とを含む波長可変光送信器と、
受信した光信号を電気信号に変換する光受信モジュールを含む光受信器と、
からなる光送受信器であって、
前記レーザ駆動部は、前記温度制御部によって与えられる温度差30℃以上の温度範囲で、前記半導体レーザに印加する電流を、温度に依存して変化させ、
前記変調器駆動部は、前記温度範囲で、前記電界吸収型変調器に印加する高周波信号の振幅電圧と前記電界吸収型変調器に印加する逆電圧とを、温度に依存して変化させることを特徴とする光送受信器。
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JP2005297287A JP5352042B2 (ja) | 2005-10-12 | 2005-10-12 | 波長可変光送信器 |
US11/452,312 US7733929B2 (en) | 2005-10-12 | 2006-06-14 | Wavelength tunable optical transmitter and optical transceiver |
EP06012308A EP1775861B1 (en) | 2005-10-12 | 2006-06-14 | Wavelength tunable optical transmitter |
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JP2007109765A true JP2007109765A (ja) | 2007-04-26 |
JP2007109765A5 JP2007109765A5 (ja) | 2008-07-17 |
JP5352042B2 JP5352042B2 (ja) | 2013-11-27 |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2009026968A (ja) * | 2007-07-19 | 2009-02-05 | Eudyna Devices Inc | 半導体レーザの制御方法 |
JP2009164386A (ja) * | 2008-01-08 | 2009-07-23 | Fujitsu Ltd | 半導体素子の制御回路及び半導体集積素子 |
JP2014197869A (ja) * | 2014-05-27 | 2014-10-16 | 日本電信電話株式会社 | 光送信器及び光送信器の駆動条件設定装置 |
JP2015149440A (ja) * | 2014-02-07 | 2015-08-20 | ソフトバンクテレコム株式会社 | 波長変換素子、波長変換装置及び制御装置 |
Families Citing this family (11)
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WO2008126276A1 (ja) * | 2007-03-30 | 2008-10-23 | Fujitsu Limited | 光送信装置およびその制御方法 |
JP5713541B2 (ja) * | 2009-04-09 | 2015-05-07 | 株式会社メガオプト | パルス生成方法及びレーザ光源装置 |
EP2323287A1 (en) * | 2009-11-12 | 2011-05-18 | Intune Networks Limited | Modulator control system and method in an optical network |
CN102014315B (zh) * | 2010-09-15 | 2014-03-12 | 索尔思光电(成都)有限公司 | 一种用于光密集波分复用的波长快速稳定方法 |
US9077482B2 (en) | 2013-03-28 | 2015-07-07 | Alcatel Lucent | High-throughput routing in an optical network having a mesh topology |
JP2016096191A (ja) * | 2014-11-12 | 2016-05-26 | 住友電気工業株式会社 | 光送信器及び駆動電流制御方法 |
US9712899B2 (en) | 2014-12-11 | 2017-07-18 | Alcatel Lucent | Hybrid optical switch for software-defined networking |
US10074959B2 (en) * | 2016-08-03 | 2018-09-11 | Emcore Corporation | Modulated laser source and methods of its fabrication and operation |
US10042192B2 (en) * | 2016-11-28 | 2018-08-07 | Futurewei Technologies, Inc. | Electro-absorption modulator with local temperature control |
CN108768516A (zh) * | 2018-07-02 | 2018-11-06 | 北京卫星信息工程研究所 | 波长快速可调谐的空间激光通信终端 |
EP3866360A1 (en) | 2020-02-11 | 2021-08-18 | Nokia Solutions and Networks Oy | Tuning multiple laser sources in an optical network |
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- 2006-06-14 EP EP06012308A patent/EP1775861B1/en active Active
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JP2009026968A (ja) * | 2007-07-19 | 2009-02-05 | Eudyna Devices Inc | 半導体レーザの制御方法 |
JP2009164386A (ja) * | 2008-01-08 | 2009-07-23 | Fujitsu Ltd | 半導体素子の制御回路及び半導体集積素子 |
JP2015149440A (ja) * | 2014-02-07 | 2015-08-20 | ソフトバンクテレコム株式会社 | 波長変換素子、波長変換装置及び制御装置 |
JP2014197869A (ja) * | 2014-05-27 | 2014-10-16 | 日本電信電話株式会社 | 光送信器及び光送信器の駆動条件設定装置 |
Also Published As
Publication number | Publication date |
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EP1775861B1 (en) | 2011-05-25 |
US20070081565A1 (en) | 2007-04-12 |
JP5352042B2 (ja) | 2013-11-27 |
US7733929B2 (en) | 2010-06-08 |
EP1775861A3 (en) | 2008-02-13 |
EP1775861A2 (en) | 2007-04-18 |
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