MX9602948A - Metodo y aparato para la verificacion periodica del funcionamiento de un transmisor laser. - Google Patents
Metodo y aparato para la verificacion periodica del funcionamiento de un transmisor laser.Info
- Publication number
- MX9602948A MX9602948A MX9602948A MX9602948A MX9602948A MX 9602948 A MX9602948 A MX 9602948A MX 9602948 A MX9602948 A MX 9602948A MX 9602948 A MX9602948 A MX 9602948A MX 9602948 A MX9602948 A MX 9602948A
- Authority
- MX
- Mexico
- Prior art keywords
- laser transmitter
- threshold
- coupled
- window comparator
- laser
- Prior art date
Links
Classifications
-
- 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
- H01S5/06825—Protecting the laser, e.g. during switch-on/off, detection of malfunctioning or degradation
-
- 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
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
-
- 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
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
- H01S3/13—Stabilisation of laser output parameters, e.g. frequency or amplitude
-
- 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
-
- 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
- H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Plasma & Fusion (AREA)
- Semiconductor Lasers (AREA)
- Optical Communication System (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Testing Of Optical Devices Or Fibers (AREA)
Abstract
Se describe un monitor de bajo costo que incluye dos comparadores que están adaptados para formar un comparador de ventana que estructura un intervalo de operacion normal de transformador láser. Un aparato para la generacion de un voltaje monitor de cara posterior, amplificado, que corresponde al nivel de potencia de salida optica del transmisor láser, ésta acoplado al comparador de ventana. Un voltaje de referencia es también acoplado al comparador de ventana, el cual define el umbral superior del intervalo normal de operacion. Una fuente de voltaje variable, controlable, está acoplada al comparador de ventana y se usa para definir el umbral inferior del intervalo de operacion normal, dondeéste intervalo inferior tiene dos valores de umbral asociados, como se describe anteriormente. El umbral inferior es iniciado al primer valor de umbral, el cual corresponde a un estado de operacion de fin de vida del transmisor láser. Cuando las señales de voltaje monitor de cara posterior es igual o cae por debajo del primer valor de umbral, se genera una señal de alarma mediante el monitor láser, y la fuente de voltaje variable, controlable, es conmutada a un segundo estado para proporcionar un segundo valor de umbral, el cual corresponde al estado de operacion fallida del transmisor láser. Conforme continua declinado el nivel de potencia de salida optica con el tiempo y la temperatura, éste cae eventualmente por debajo del segundo umbral, y se genera una segunda señal de alarma para indicar la falla de láser. Un amplificador de instrumentacion de ganancia variable está acoplado al aparato de generacion, y se utiliza para medir la potencia de salida optica del transmisor láser.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/510,949 US5673282A (en) | 1995-07-28 | 1995-07-28 | Method and apparatus for monitoring performance of a laser transmitter |
Publications (1)
Publication Number | Publication Date |
---|---|
MX9602948A true MX9602948A (es) | 1997-06-28 |
Family
ID=24032858
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX9602948A MX9602948A (es) | 1995-07-28 | 1996-07-23 | Metodo y aparato para la verificacion periodica del funcionamiento de un transmisor laser. |
Country Status (8)
Country | Link |
---|---|
US (1) | US5673282A (es) |
EP (1) | EP0756363B1 (es) |
JP (1) | JPH09101237A (es) |
KR (1) | KR970009007A (es) |
AU (1) | AU709655B2 (es) |
CA (1) | CA2181751C (es) |
DE (1) | DE69607532T2 (es) |
MX (1) | MX9602948A (es) |
Families Citing this family (45)
Publication number | Priority date | Publication date | Assignee | Title |
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US5825516A (en) * | 1996-07-25 | 1998-10-20 | Hewlett-Packard Company | Optical power meter for detecting loss factors in fiber optic communications |
DE19702303A1 (de) * | 1997-01-23 | 1998-07-30 | Philips Patentverwaltung | Schaltungsanordnung zum Erzeugen eines Ausgangssignals |
US7302186B2 (en) | 2001-02-05 | 2007-11-27 | Finisar Corporation | Optical transceiver and host adapter with memory mapped monitoring circuitry |
US7149430B2 (en) * | 2001-02-05 | 2006-12-12 | Finsiar Corporation | Optoelectronic transceiver having dual access to onboard diagnostics |
US20040197101A1 (en) * | 2001-02-05 | 2004-10-07 | Sasser Gary D. | Optical transceiver module with host accessible on-board diagnostics |
US7346278B2 (en) * | 2001-02-05 | 2008-03-18 | Finisar Corporation | Analog to digital signal conditioning in optoelectronic transceivers |
US7079775B2 (en) * | 2001-02-05 | 2006-07-18 | Finisar Corporation | Integrated memory mapped controller circuit for fiber optics transceiver |
US20020149824A1 (en) * | 2001-02-27 | 2002-10-17 | Yves Beaulieu | Synchronization of an optical pulse stream with an electrical signal |
US6975642B2 (en) | 2001-09-17 | 2005-12-13 | Finisar Corporation | Optoelectronic device capable of participating in in-band traffic |
US6862302B2 (en) * | 2002-02-12 | 2005-03-01 | Finisar Corporation | Maintaining desirable performance of optical emitters over temperature variations |
US7486894B2 (en) * | 2002-06-25 | 2009-02-03 | Finisar Corporation | Transceiver module and integrated circuit with dual eye openers |
US7809275B2 (en) * | 2002-06-25 | 2010-10-05 | Finisar Corporation | XFP transceiver with 8.5G CDR bypass |
US7437079B1 (en) | 2002-06-25 | 2008-10-14 | Finisar Corporation | Automatic selection of data rate for optoelectronic devices |
US7664401B2 (en) * | 2002-06-25 | 2010-02-16 | Finisar Corporation | Apparatus, system and methods for modifying operating characteristics of optoelectronic devices |
US7561855B2 (en) | 2002-06-25 | 2009-07-14 | Finisar Corporation | Transceiver module and integrated circuit with clock and data recovery clock diplexing |
US7477847B2 (en) * | 2002-09-13 | 2009-01-13 | Finisar Corporation | Optical and electrical channel feedback in optical transceiver module |
US7317743B2 (en) * | 2002-11-08 | 2008-01-08 | Finisar Corporation | Temperature and jitter compensation controller circuit and method for fiber optics device |
US7230961B2 (en) | 2002-11-08 | 2007-06-12 | Finisar Corporation | Temperature and jitter compensation controller circuit and method for fiber optics device |
US7426586B2 (en) * | 2003-12-15 | 2008-09-16 | Finisar Corporation | Configurable input/output terminals |
US7346086B2 (en) * | 2004-04-02 | 2008-03-18 | Videojet Technologies, Inc. | Apparatus for monitoring the operating status of a laser |
US7630631B2 (en) * | 2004-04-14 | 2009-12-08 | Finisar Corporation | Out-of-band data communication between network transceivers |
US7447438B2 (en) * | 2004-07-02 | 2008-11-04 | Finisar Corporation | Calibration of digital diagnostics information in an optical transceiver prior to reporting to host |
US8639122B2 (en) * | 2004-07-02 | 2014-01-28 | Finisar Corporation | Filtering digital diagnostics information in an optical transceiver prior to reporting to host |
US7504610B2 (en) * | 2004-09-03 | 2009-03-17 | Mindspeed Technologies, Inc. | Optical modulation amplitude compensation system having a laser driver with modulation control signals |
US7532820B2 (en) | 2004-10-29 | 2009-05-12 | Finisar Corporation | Systems and methods for providing diagnostic information using EDC transceivers |
US7453283B2 (en) | 2005-11-04 | 2008-11-18 | Texas Instruments Incorporated | LVDS input circuit with connection to input of output driver |
US8750341B2 (en) * | 2008-01-04 | 2014-06-10 | Mindspeed Technologies, Inc. | Method and apparatus for reducing optical signal speckle |
CN102318338A (zh) | 2008-03-31 | 2012-01-11 | 曼德斯必德技术公司 | 便携式lcos/lcd/dlp投影系统中的功率耗散的减少 |
US8159956B2 (en) | 2008-07-01 | 2012-04-17 | Finisar Corporation | Diagnostics for serial communication busses |
US8521019B2 (en) * | 2008-07-14 | 2013-08-27 | Nanotech Semiconductor Ltd. | Method and system for closed loop control of an optical link |
US8295316B2 (en) * | 2010-03-24 | 2012-10-23 | Cymer, Inc. | Method and system for managing light source operation |
US8643296B2 (en) | 2010-11-22 | 2014-02-04 | Mindspeed Technologies, Inc. | Color mixing and desaturation with reduced number of converters |
TWI446715B (zh) * | 2011-01-03 | 2014-07-21 | Etron Technology Inc | 具有雙輸入緩衝器切換功能的輸入緩衝系統及其方法 |
US9107245B2 (en) | 2011-06-09 | 2015-08-11 | Mindspeed Technologies, Inc. | High accuracy, high dynamic range LED/laser driver |
US9385606B2 (en) | 2012-12-03 | 2016-07-05 | M/A-Com Technology Solutions Holdings, Inc. | Automatic buck/boost mode selection system for DC-DC converter |
US10097908B2 (en) | 2014-12-31 | 2018-10-09 | Macom Technology Solutions Holdings, Inc. | DC-coupled laser driver with AC-coupled termination element |
TWI750216B (zh) | 2016-08-30 | 2021-12-21 | 美商Macom技術方案控股公司 | 具分散式架構之驅動器 |
US10630052B2 (en) | 2017-10-04 | 2020-04-21 | Macom Technology Solutions Holdings, Inc. | Efficiency improved driver for laser diode in optical communication |
US10461851B1 (en) * | 2018-03-30 | 2019-10-29 | Facebook, Inc. | Predicting optical transceiver failure |
US10425156B1 (en) | 2018-03-30 | 2019-09-24 | Facebook, Inc. | Dynamically determining optical transceiver expected life |
CN112368063B (zh) * | 2018-06-13 | 2023-01-06 | 西默有限公司 | 气体监测系统 |
US11005573B2 (en) | 2018-11-20 | 2021-05-11 | Macom Technology Solutions Holdings, Inc. | Optic signal receiver with dynamic control |
US10727937B1 (en) * | 2019-03-01 | 2020-07-28 | Huawei Technologies Co., Ltd. | Multi-layer encoding of optical signals |
US12013423B2 (en) | 2020-09-30 | 2024-06-18 | Macom Technology Solutions Holdings, Inc. | TIA bandwidth testing system and method |
US11658630B2 (en) | 2020-12-04 | 2023-05-23 | Macom Technology Solutions Holdings, Inc. | Single servo loop controlling an automatic gain control and current sourcing mechanism |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USRE31969E (en) * | 1976-03-22 | 1985-08-13 | At&T Bell Laboratories | Laser control circuit |
US4009385A (en) * | 1976-03-22 | 1977-02-22 | Bell Telephone Laboratories, Incorporated | Laser control circuit |
JPS5550679A (en) * | 1978-10-06 | 1980-04-12 | Hitachi Ltd | Laser drive current control system |
JP2539358B2 (ja) * | 1985-03-20 | 1996-10-02 | オリンパス光学工業株式会社 | 光学式記録再生装置における半導体レ―ザ劣化判別装置 |
US4819241A (en) * | 1985-08-16 | 1989-04-04 | Kabushiki Kaisha Toshiba | Laser diode driving circuit |
US4677632A (en) * | 1985-10-28 | 1987-06-30 | American Telephone And Telegraph Company, At&T Bell Laboratories | Coupled loop controller for a laser transmitter |
US4792957A (en) * | 1986-12-22 | 1988-12-20 | Gte Communication Systems Corporation | Laser temperature controller |
JPS63289978A (ja) * | 1987-05-22 | 1988-11-28 | Matsushita Graphic Commun Syst Inc | 半導体レ−ザ−劣化検出回路 |
US5005177A (en) * | 1989-09-27 | 1991-04-02 | Lumonics Inc. | Laser optics quality monitoring |
JPH03179789A (ja) * | 1989-12-07 | 1991-08-05 | Nec Corp | アラーム回路 |
US4995045A (en) * | 1990-02-01 | 1991-02-19 | Northern Telecom Limited | Laser control circuit |
JPH0590661A (ja) * | 1991-04-26 | 1993-04-09 | Fanuc Ltd | ガスレーザ装置用ブロアの軸受異常検出方式 |
JPH05259988A (ja) * | 1992-03-13 | 1993-10-08 | Nec Corp | 光出力監視回路 |
-
1995
- 1995-07-28 US US08/510,949 patent/US5673282A/en not_active Expired - Lifetime
-
1996
- 1996-07-22 CA CA002181751A patent/CA2181751C/en not_active Expired - Fee Related
- 1996-07-23 MX MX9602948A patent/MX9602948A/es not_active Application Discontinuation
- 1996-07-23 DE DE69607532T patent/DE69607532T2/de not_active Expired - Fee Related
- 1996-07-23 EP EP96305387A patent/EP0756363B1/en not_active Expired - Lifetime
- 1996-07-24 AU AU60681/96A patent/AU709655B2/en not_active Ceased
- 1996-07-27 KR KR1019960030736A patent/KR970009007A/ko not_active Application Discontinuation
- 1996-07-29 JP JP8198580A patent/JPH09101237A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
KR970009007A (ko) | 1997-02-24 |
AU709655B2 (en) | 1999-09-02 |
DE69607532T2 (de) | 2000-09-14 |
EP0756363A2 (en) | 1997-01-29 |
AU6068196A (en) | 1997-02-06 |
CA2181751C (en) | 1999-09-21 |
DE69607532D1 (de) | 2000-05-11 |
CA2181751A1 (en) | 1997-01-29 |
JPH09101237A (ja) | 1997-04-15 |
EP0756363B1 (en) | 2000-04-05 |
EP0756363A3 (en) | 1997-11-19 |
US5673282A (en) | 1997-09-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FA | Abandonment or withdrawal |