WO2005091957A3 - A laser driver circuit for reducing electromagnetic interference - Google Patents

A laser driver circuit for reducing electromagnetic interference Download PDF

Info

Publication number
WO2005091957A3
WO2005091957A3 PCT/US2005/006943 US2005006943W WO2005091957A3 WO 2005091957 A3 WO2005091957 A3 WO 2005091957A3 US 2005006943 W US2005006943 W US 2005006943W WO 2005091957 A3 WO2005091957 A3 WO 2005091957A3
Authority
WO
WIPO (PCT)
Prior art keywords
differential
amplifier circuit
pair
differential amplifier
circuit
Prior art date
Application number
PCT/US2005/006943
Other languages
French (fr)
Other versions
WO2005091957A2 (en
Inventor
Tim Moran
Original Assignee
Finisar Corp
Tim Moran
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
Priority claimed from US11/071,714 external-priority patent/US7184452B2/en
Application filed by Finisar Corp, Tim Moran filed Critical Finisar Corp
Priority to EP05724481.6A priority Critical patent/EP1721371A4/en
Publication of WO2005091957A2 publication Critical patent/WO2005091957A2/en
Publication of WO2005091957A3 publication Critical patent/WO2005091957A3/en

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
    • H01S5/04—Processes or apparatus for excitation, e.g. pumping, e.g. by electron beams
    • H01S5/042—Electrical excitation ; Circuits therefor

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optics & Photonics (AREA)
  • Amplifiers (AREA)
  • Semiconductor Lasers (AREA)

Abstract

A laser driver circuit for reducing electromagnetic interference is disclosed. The laser driver circuit includes a first differential amplifier circuit, a second differential amplifier circuit and a glitch smoothing circuit. The first differential amplifier circuit is coupled to a pair of differential input signals, and is configured to generate a first amplified signal. The second differential amplifier circuit is coupled to the pair of differential input signals, and is configured to generate a second amplified signal. The first and second amplified signals together form a differential pair of output signals. The glitch smoothing circuit has a first output terminal coupled to the first differential amplifier circuit and a second output terminal coupled to the second differential amplifier circuit. The glitch smoothing circuit is configured to reduce glitches on the differential pair of output signals when the pair of differential input signals switch states.
PCT/US2005/006943 2004-03-05 2005-03-04 A laser driver circuit for reducing electromagnetic interference WO2005091957A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP05724481.6A EP1721371A4 (en) 2004-03-05 2005-03-04 A laser driver circuit for reducing electromagnetic interference

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US55051804P 2004-03-05 2004-03-05
US60/550,518 2004-03-05
US11/071,714 2005-03-03
US11/071,714 US7184452B2 (en) 2004-03-05 2005-03-03 Laser driver circuit for reducing electromagnetic interference

Publications (2)

Publication Number Publication Date
WO2005091957A2 WO2005091957A2 (en) 2005-10-06
WO2005091957A3 true WO2005091957A3 (en) 2006-10-05

Family

ID=35056702

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/006943 WO2005091957A2 (en) 2004-03-05 2005-03-04 A laser driver circuit for reducing electromagnetic interference

Country Status (2)

Country Link
EP (1) EP1721371A4 (en)
WO (1) WO2005091957A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108449057A (en) * 2013-09-12 2018-08-24 意法半导体研发(深圳)有限公司 The method and circuit of POP noises are removed in audio frequency apparatus

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6218870B1 (en) * 1999-09-01 2001-04-17 Agilent Technologies, Inc. Anti-glitch system and method for laser interferometers using frequency dependent hysteresis

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5191234A (en) * 1990-12-10 1993-03-02 Sony Corporation Pulse signal generator and cascode differential amplifier
JPH07154015A (en) * 1993-12-01 1995-06-16 Fujitsu Ltd Laser diode drive circuit
US5883910A (en) * 1997-07-03 1999-03-16 Maxim Integrated Products, Inc. High speed semiconductor laser driver circuits
JP3531661B2 (en) * 1997-08-29 2004-05-31 シャープ株式会社 Light emitting diode drive circuit
JP2000138415A (en) * 1998-11-02 2000-05-16 Fujikura Ltd Semiconductor laser driving circuit
US6373346B1 (en) * 2000-11-27 2002-04-16 Sirenza Microdevices, Inc. Laser driver pre-emphasis and de-emphasis method and/or architecture with tuning and duty cycle control
JP2003243714A (en) * 2001-12-11 2003-08-29 Sharp Corp Drive circuit for light emitting element and optical communication system using the same

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6218870B1 (en) * 1999-09-01 2001-04-17 Agilent Technologies, Inc. Anti-glitch system and method for laser interferometers using frequency dependent hysteresis

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1721371A4 *

Also Published As

Publication number Publication date
EP1721371A4 (en) 2014-12-03
EP1721371A2 (en) 2006-11-15
WO2005091957A2 (en) 2005-10-06

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