JPS6430034A - Semiconductor laser driver - Google Patents

Semiconductor laser driver

Info

Publication number
JPS6430034A
JPS6430034A JP62184717A JP18471787A JPS6430034A JP S6430034 A JPS6430034 A JP S6430034A JP 62184717 A JP62184717 A JP 62184717A JP 18471787 A JP18471787 A JP 18471787A JP S6430034 A JPS6430034 A JP S6430034A
Authority
JP
Japan
Prior art keywords
semiconductor laser
photodiode
light radiated
laser
light
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP62184717A
Other languages
Japanese (ja)
Inventor
Takashi Hama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seiko Epson Corp
Original Assignee
Seiko Epson Corp
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 Seiko Epson Corp filed Critical Seiko Epson Corp
Priority to JP62184717A priority Critical patent/JPS6430034A/en
Publication of JPS6430034A publication Critical patent/JPS6430034A/en
Pending legal-status Critical Current

Links

Landscapes

  • Semiconductor Lasers (AREA)
  • Optical Head (AREA)

Abstract

PURPOSE:To obtain the stable quantity of light radiated from a laser independently of return light by arranging a photodiode in front of a semiconductor laser chip and monitoring the quantity of light radiated from the laser. CONSTITUTION:The photodiode 9 for monitoring light radiated from the laser is arranged between the semiconductor laser chip 1 and a coupling lens 3 and the photodiode 9 has structure to be held by mounting it on a circuit substrate 15 whose position can be finely adjusted. Negative feedback from the semiconductor laser to a driving circuit 11 is applied by the photodiode 9. Consequently, the quantity of light radiated from the semiconductor laser can be stabilized, reflected light or the like on the surface of the photodiode 9 does not exert bad influence upon the optical system and the whole device can be miniaturized.
JP62184717A 1987-07-24 1987-07-24 Semiconductor laser driver Pending JPS6430034A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62184717A JPS6430034A (en) 1987-07-24 1987-07-24 Semiconductor laser driver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62184717A JPS6430034A (en) 1987-07-24 1987-07-24 Semiconductor laser driver

Publications (1)

Publication Number Publication Date
JPS6430034A true JPS6430034A (en) 1989-01-31

Family

ID=16158132

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62184717A Pending JPS6430034A (en) 1987-07-24 1987-07-24 Semiconductor laser driver

Country Status (1)

Country Link
JP (1) JPS6430034A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5422900A (en) * 1994-04-28 1995-06-06 Eastman Kodak Company Integrated laser module
WO1998035411A1 (en) * 1997-02-07 1998-08-13 Coherent, Inc. Laser diode integrating enclosure and detector
US6027256A (en) * 1997-02-07 2000-02-22 Coherent, Inc. Composite laser diode enclosure and method for making the same
US7009692B2 (en) 1999-08-06 2006-03-07 Lumenis Inc. Arrangement for monitoring the power delivery of a photon channeling element
WO2016076105A1 (en) * 2014-11-13 2016-05-19 住友電気工業株式会社 Light module
WO2019065162A1 (en) * 2017-09-29 2019-04-04 住友電気工業株式会社 Optical module

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5422900A (en) * 1994-04-28 1995-06-06 Eastman Kodak Company Integrated laser module
WO1998035411A1 (en) * 1997-02-07 1998-08-13 Coherent, Inc. Laser diode integrating enclosure and detector
US6027256A (en) * 1997-02-07 2000-02-22 Coherent, Inc. Composite laser diode enclosure and method for making the same
US6061374A (en) * 1997-02-07 2000-05-09 Coherent, Inc. Laser diode integrating enclosure and detector
US7009692B2 (en) 1999-08-06 2006-03-07 Lumenis Inc. Arrangement for monitoring the power delivery of a photon channeling element
WO2016076105A1 (en) * 2014-11-13 2016-05-19 住友電気工業株式会社 Light module
JP2016096219A (en) * 2014-11-13 2016-05-26 住友電気工業株式会社 Optical module
WO2019065162A1 (en) * 2017-09-29 2019-04-04 住友電気工業株式会社 Optical module
JPWO2019065162A1 (en) * 2017-09-29 2020-10-22 住友電気工業株式会社 Optical module

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