WO2008046725B1 - Optical transmitter for fiber optic data communication - Google Patents

Optical transmitter for fiber optic data communication

Info

Publication number
WO2008046725B1
WO2008046725B1 PCT/EP2007/060247 EP2007060247W WO2008046725B1 WO 2008046725 B1 WO2008046725 B1 WO 2008046725B1 EP 2007060247 W EP2007060247 W EP 2007060247W WO 2008046725 B1 WO2008046725 B1 WO 2008046725B1
Authority
WO
WIPO (PCT)
Prior art keywords
optical amplifier
semiconductor optical
laser diode
amplifier
semiconductor
Prior art date
Application number
PCT/EP2007/060247
Other languages
French (fr)
Other versions
WO2008046725A1 (en
Inventor
Robert Atkins
Harry Bagheri
Casimer Decusatis
Original Assignee
Ibm
Ibm Uk
Robert Atkins
Harry Bagheri
Casimer Decusatis
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ibm, Ibm Uk, Robert Atkins, Harry Bagheri, Casimer Decusatis filed Critical Ibm
Priority to KR1020097005545A priority Critical patent/KR101055146B1/en
Priority to JP2009532754A priority patent/JP5128608B2/en
Priority to CA2664690A priority patent/CA2664690C/en
Priority to CN2007800387243A priority patent/CN101529757B/en
Priority to EP07803609A priority patent/EP2084837A1/en
Publication of WO2008046725A1 publication Critical patent/WO2008046725A1/en
Publication of WO2008046725B1 publication Critical patent/WO2008046725B1/en

Links

Classifications

    • 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
    • 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
    • H01S5/40—Arrangement of two or more semiconductor lasers, not provided for in groups H01S5/02 - H01S5/30
    • H01S5/4006—Injection locking
    • 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
    • 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
    • H04B10/25—Arrangements specific to fibre transmission
    • 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
    • H04B10/29—Repeaters
    • H04B10/291—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form
    • H04B10/2912—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form characterised by the medium used for amplification or processing
    • H04B10/2914—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form characterised by the medium used for amplification or processing using lumped semiconductor optical amplifiers [SOA]
    • 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
    • H01S5/06209—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying the potential of the electrodes in single-section lasers
    • H01S5/06213—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
    • H01S5/50—Amplifier structures not provided for in groups H01S5/02 - H01S5/30
    • H01S5/5045—Amplifier structures not provided for in groups H01S5/02 - H01S5/30 the arrangement having a frequency filtering function

Abstract

The invention provides a device and a method for extending the bandwidth of short wavelength and long wavelength fiber optic lengths. The invention provides for an optical transmitter package device comprising: a laser diode; and a semiconductor optical amplifier connected directly after and in close proximity to the laser diode, wherein the semiconductor optical amplifier is adapted to operate in a frequency domain such that the semiconductor optical amplifier filters and reshapes optical wavelengths from the laser diode, and wherein the semiconductor optical amplifier is biased below an amplification threshold for the semiconductor optical amplifier. The device may also comprises a feedback circuit which comprises an optical splitter, wherein the feedback circuit samples reshaped optical output from the semiconductor optical amplifier and dynamically adjusts one or both of the semiconductor optical amplifier and the laser diode. In the case of a multimode fiber, the present invention provides the additional ability to provide a controlled offset launch into the fiber and the ability to control modal noise devoid of a specialized optical connector.

Claims

AMENDED CLAIMS received by the International Bureau on 28 April 2008 (28.04.08)
1. An optical transmitter device comprising: a laser diode; a semiconductor optical amplifier connected directly to said laser diode: and a control circuit operable to bias said semiconductor optical amplifier below an amplification threshold for said semiconductor optical amplifier, wherein said semiconductor optical amplifier is adapted to operate in a frequency domain such that said semiconductor optical amplifier filters and reshapes optical output from said laser diode.
2. The device of claim 1, wherein said semiconductor optical amplifier is positioned adjacent to said laser diode such that said optical output shows no loss when said optical output is received by said semiconductor optical amplifier.
3. The device of claim 1 , further comprising: a feedback circuit comprising an optical splitter connected to said semiconductor optical amplifier, wherein said feedback circuit is adapted to sample reshaped optical output from said semiconductor optical amplifier and dynamically adjust at least one of said semiconductor optical amplifier and said laser diode.
4. The device of claim 3, wherein said feedback circuit is connected to the control circuit, wherein said control circuit is adapted to adjust a bias voltage selected from at lease one of said semiconductor optical amplifier and said laser diode.
5. The device of claim 3, wherein said feedback circuit is connected to the control circuit, wherein said control circuit is adapted to dynamically adjust a drive current selected from at least one of said semiconductor optical amplifier and said laser diode.
6. The device of claim 1 , further comprising: a multimode fiber connected to said semiconductor optical amplifier, wherein said semiconductor optical amplifier is offset a controlled amount from a center point of said laser diode such that a predetermined amount of optical output of said laser diode is coupled into said multimode fiber.
7. The device of claim 6, wherein semiconductor optical amplifier is adapted to produce a reshaped optical output from said offset that is preferentially launched into selected modes of said multimode fiber.
8. The device of claim 6, wherein said diode and said amplifier are connected devoid of intervening optical connectors.
9. A method for operating an optical transmitter device comprising: connecting a laser diode directly to a semiconductor optical amplifier; generating optical output from said laser diode; receiving said optical output by said semiconductor optical amplifier connected directly to said laser diode; and spectrally filtering said optical output by launching said optical output into said semiconductor optical amplifier to produce a reshaped optical output; and reshaping wavelengths from said optical output generated from said laser diodes and received by said semiconductor optical amplifier.
10. The method of claim 9, further comprising dynamically adjusting one or both of said semiconductor optical amplifier and said laser diode.
11. The method of claim 10, wherein said dynamically adjusting further comprises adjusting a bias voltage selected from a said bias voltage of one or both of said semiconductor optical amplifier and said laser diode.
12. The method of claim 10, wherein said dynamically adjusting further comprises adjusting a drive current selected from said drive current of one or both of said semiconductor optical amplifier and said laser diode.
13. The method of any of claims 9 to 12, further comprising: locating the semiconductor optical amplifier after said laser diode in a pre-amplifier configuration with said laser diode; and deliberately offsetting said laser diode and said semiconductor optical amplifier, wherein said deliberately offsetting facilitates mode conditioning in a multimode fiber.
14. The method of claim 13, further comprising coupling a predetermined amount of said optical output into a multimode fiber by offsetting said semiconductor optical amplifier a controlled amount from said laser diode center point and launching said reshaped optical into said multimode fiber.
PCT/EP2007/060247 2006-10-19 2007-09-27 Optical transmitter for fiber optic data communication WO2008046725A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
KR1020097005545A KR101055146B1 (en) 2006-10-19 2007-09-27 Optical transmitter for fiber optic data communication
JP2009532754A JP5128608B2 (en) 2006-10-19 2007-09-27 Optical fiber data communication
CA2664690A CA2664690C (en) 2006-10-19 2007-09-27 Optical transmitter for fiber optic data communication
CN2007800387243A CN101529757B (en) 2006-10-19 2007-09-27 Optical transmitter for fiber optic data communication
EP07803609A EP2084837A1 (en) 2006-10-19 2007-09-27 Optical transmitter for fiber optic data communication

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/550,935 2006-10-19
US11/550,935 US7489440B2 (en) 2006-10-19 2006-10-19 Optical spectral filtering and dispersion compensation using semiconductor optical amplifiers

Publications (2)

Publication Number Publication Date
WO2008046725A1 WO2008046725A1 (en) 2008-04-24
WO2008046725B1 true WO2008046725B1 (en) 2008-06-12

Family

ID=38704969

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/060247 WO2008046725A1 (en) 2006-10-19 2007-09-27 Optical transmitter for fiber optic data communication

Country Status (8)

Country Link
US (3) US7489440B2 (en)
EP (1) EP2084837A1 (en)
JP (1) JP5128608B2 (en)
KR (1) KR101055146B1 (en)
CN (1) CN101529757B (en)
CA (1) CA2664690C (en)
TW (1) TWI413365B (en)
WO (1) WO2008046725A1 (en)

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US9496684B2 (en) * 2009-12-22 2016-11-15 International Business Machines Corporation System to control an optical signal
JP5623159B2 (en) * 2010-06-30 2014-11-12 ソニー株式会社 Semiconductor optical amplifier alignment method and optical output device
US8928863B2 (en) * 2011-05-06 2015-01-06 Northrop Grumman Systems Corporation Systems and methods for generating an optical pulse
US8958705B2 (en) * 2012-01-13 2015-02-17 Esi-Pyrophotonics Lasers Inc. Methods and systems for a pulsed laser source emitting a predetermined output pulse profile
JP5859901B2 (en) * 2012-04-10 2016-02-16 日本電信電話株式会社 Optical transmission system
CN104466673B (en) * 2014-10-16 2017-06-13 浙江大学 The apparatus and method for compensating super-radiance light emitting diode optical source wavelength temperature drift
KR102045967B1 (en) * 2017-11-24 2019-11-18 광주과학기술원 Apparatus for Up-converting of All-optical Single Side Band Frequency and Operation Method thereof
CN108344804A (en) * 2018-02-28 2018-07-31 中国人民武装警察部队工程大学 A kind of large-scale component non-destructive testing laser ultrasonic detection device and detection method
JP2020053423A (en) * 2018-09-21 2020-04-02 浜松ホトニクス株式会社 Laser equipment and laser waveform control method

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Also Published As

Publication number Publication date
US7489440B2 (en) 2009-02-10
US20080094693A1 (en) 2008-04-24
CA2664690A1 (en) 2008-04-24
CN101529757B (en) 2012-09-05
JP2010507240A (en) 2010-03-04
TWI413365B (en) 2013-10-21
US8031398B2 (en) 2011-10-04
TW200832956A (en) 2008-08-01
JP5128608B2 (en) 2013-01-23
CA2664690C (en) 2015-03-24
KR101055146B1 (en) 2011-08-08
WO2008046725A1 (en) 2008-04-24
US20080298417A1 (en) 2008-12-04
US20110274440A1 (en) 2011-11-10
EP2084837A1 (en) 2009-08-05
US8988769B2 (en) 2015-03-24
KR20090077891A (en) 2009-07-16
CN101529757A (en) 2009-09-09

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