JPS533090A - Stabilization circuit of radiation output light - Google Patents

Stabilization circuit of radiation output light

Info

Publication number
JPS533090A
JPS533090A JP7644476A JP7644476A JPS533090A JP S533090 A JPS533090 A JP S533090A JP 7644476 A JP7644476 A JP 7644476A JP 7644476 A JP7644476 A JP 7644476A JP S533090 A JPS533090 A JP S533090A
Authority
JP
Japan
Prior art keywords
output light
stabilization circuit
radiation output
low
signal
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
JP7644476A
Other languages
Japanese (ja)
Inventor
Takao Ito
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP7644476A priority Critical patent/JPS533090A/en
Publication of JPS533090A publication Critical patent/JPS533090A/en
Pending legal-status Critical Current

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
    • H01S5/0683—Stabilisation of laser output parameters by monitoring the optical output parameters
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/10—Controlling the intensity of the light
    • H05B45/14—Controlling the intensity of the light using electrical feedback from LEDs or from LED modules

Landscapes

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

Abstract

PURPOSE:To stabilize output by converting part of the output light of a photoelectric transducer, passing the electric signal through a low-pass filter, taking a difference with the low-pass-filtered intput signal and driving the photoelectric transducer with this differential signal.
JP7644476A 1976-06-30 1976-06-30 Stabilization circuit of radiation output light Pending JPS533090A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7644476A JPS533090A (en) 1976-06-30 1976-06-30 Stabilization circuit of radiation output light

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7644476A JPS533090A (en) 1976-06-30 1976-06-30 Stabilization circuit of radiation output light

Publications (1)

Publication Number Publication Date
JPS533090A true JPS533090A (en) 1978-01-12

Family

ID=13605313

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7644476A Pending JPS533090A (en) 1976-06-30 1976-06-30 Stabilization circuit of radiation output light

Country Status (1)

Country Link
JP (1) JPS533090A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0541555A (en) * 1991-08-02 1993-02-19 Nec Corp Automatic optical output control circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0541555A (en) * 1991-08-02 1993-02-19 Nec Corp Automatic optical output control circuit

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