JPS5521129A - Light modulator - Google Patents

Light modulator

Info

Publication number
JPS5521129A
JPS5521129A JP9366678A JP9366678A JPS5521129A JP S5521129 A JPS5521129 A JP S5521129A JP 9366678 A JP9366678 A JP 9366678A JP 9366678 A JP9366678 A JP 9366678A JP S5521129 A JPS5521129 A JP S5521129A
Authority
JP
Japan
Prior art keywords
adjustment
temperature characteristic
field effect
effect transistor
compensation
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.)
Granted
Application number
JP9366678A
Other languages
Japanese (ja)
Other versions
JPS5651516B2 (en
Inventor
Koichi Asatani
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP9366678A priority Critical patent/JPS5521129A/en
Publication of JPS5521129A publication Critical patent/JPS5521129A/en
Publication of JPS5651516B2 publication Critical patent/JPS5651516B2/ja
Granted 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

Landscapes

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

Abstract

PURPOSE:To compensate a distorted temperature characteristic of a light emitting element by utilizing a nonlinear temperature characteristic of a differential resistance generated between a drain and source of a field effect transistor. CONSTITUTION:A field effect transistor 7 and 8 have a similar characteristic and a compensation for non-linear distortion can be established by varying a variable resistor 12 and voltage regulator 10. The width of the output is set at a substantial same level as the input normally by presetting at a similar value an emitter 12 and collector resistance 11, and consequently any influence due to the adjustment of the distortion compensation is not caused. Therefore, an adjustment to a gain need not be required by achieving the adjustment for compensating a non-linear distortion and temperature characteristic.
JP9366678A 1978-08-02 1978-08-02 Light modulator Granted JPS5521129A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9366678A JPS5521129A (en) 1978-08-02 1978-08-02 Light modulator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9366678A JPS5521129A (en) 1978-08-02 1978-08-02 Light modulator

Publications (2)

Publication Number Publication Date
JPS5521129A true JPS5521129A (en) 1980-02-15
JPS5651516B2 JPS5651516B2 (en) 1981-12-05

Family

ID=14088714

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9366678A Granted JPS5521129A (en) 1978-08-02 1978-08-02 Light modulator

Country Status (1)

Country Link
JP (1) JPS5521129A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59207755A (en) * 1983-04-27 1984-11-24 エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン Light transmitter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59207755A (en) * 1983-04-27 1984-11-24 エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン Light transmitter
JPH0473656B2 (en) * 1983-04-27 1992-11-24

Also Published As

Publication number Publication date
JPS5651516B2 (en) 1981-12-05

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