JPS6448240A - Semiconductor laser driving circuit - Google Patents

Semiconductor laser driving circuit

Info

Publication number
JPS6448240A
JPS6448240A JP62204657A JP20465787A JPS6448240A JP S6448240 A JPS6448240 A JP S6448240A JP 62204657 A JP62204657 A JP 62204657A JP 20465787 A JP20465787 A JP 20465787A JP S6448240 A JPS6448240 A JP S6448240A
Authority
JP
Japan
Prior art keywords
power
current source
control signal
semiconductor laser
current
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
JP62204657A
Other languages
Japanese (ja)
Inventor
Shinji Kubota
Shunji Ohara
Kenzo Ishibashi
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP62204657A priority Critical patent/JPS6448240A/en
Publication of JPS6448240A publication Critical patent/JPS6448240A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE:To stably and highly-speedily set the two kinds of power of bias power and peak power by setting the bias power with holding the control signal of a first current source and setting the peak power with holding the control signal of a second current source. CONSTITUTION:The titled circuit provides a first current source 7 to flow a current for the bias power, a second current source 15 to flow a current for the peak power with overlapping to the current for the bias power and a control means holding the control signal of a first current source 7 and setting the desired source 7 and setting the desired bias power when the power of the semiconductor laser coincides with the bias power desired to successively rise by the control signal of the first current source 7. This circuit also provides a means to successively rise the power of the semiconductor laser with the control signal of the second current source 15 and a means to hold the control signal of the second current source 15 when the power of the semiconductor laser coincides with the desired peak power and to set the desired peak power. Thus, the two kinds of power of the bias power and the peak power can be set stably and highly-speedily.
JP62204657A 1987-08-18 1987-08-18 Semiconductor laser driving circuit Pending JPS6448240A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62204657A JPS6448240A (en) 1987-08-18 1987-08-18 Semiconductor laser driving circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62204657A JPS6448240A (en) 1987-08-18 1987-08-18 Semiconductor laser driving circuit

Publications (1)

Publication Number Publication Date
JPS6448240A true JPS6448240A (en) 1989-02-22

Family

ID=16494129

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62204657A Pending JPS6448240A (en) 1987-08-18 1987-08-18 Semiconductor laser driving circuit

Country Status (1)

Country Link
JP (1) JPS6448240A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001059777A1 (en) * 2000-02-09 2001-08-16 Matsushita Electric Industrial Co., Ltd. Laser control device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001059777A1 (en) * 2000-02-09 2001-08-16 Matsushita Electric Industrial Co., Ltd. Laser control device
US6683836B2 (en) 2000-02-09 2004-01-27 Matsushita Electric Industrial Co., Ltd. Laser control device

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