JPS5623047A - Optical transmitter - Google Patents

Optical transmitter

Info

Publication number
JPS5623047A
JPS5623047A JP9933479A JP9933479A JPS5623047A JP S5623047 A JPS5623047 A JP S5623047A JP 9933479 A JP9933479 A JP 9933479A JP 9933479 A JP9933479 A JP 9933479A JP S5623047 A JPS5623047 A JP S5623047A
Authority
JP
Japan
Prior art keywords
signal
light source
amplified
converted
driving circuit
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
JP9933479A
Other languages
Japanese (ja)
Other versions
JPS5830779B2 (en
Inventor
Yoshio Ogushi
Hiroshi Matsumura
Shuichi Samejima
Seiichi Kurokawa
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.)
NEC Corp
Nippon Telegraph and Telephone Corp
Original Assignee
NEC Corp
Nippon Telegraph and Telephone Corp
Nippon 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 NEC Corp, Nippon Telegraph and Telephone Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP54099334A priority Critical patent/JPS5830779B2/en
Publication of JPS5623047A publication Critical patent/JPS5623047A/en
Publication of JPS5830779B2 publication Critical patent/JPS5830779B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/50—Transmitters
    • H04B10/58—Compensation for non-linear transmitter output

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)
  • Led Devices (AREA)

Abstract

PURPOSE:To realize low distortion and low noise characteristics over high frequencies, by using another light source to constitute the feedback loop. CONSTITUTION:The electric input signal drives the light source 2 through the light source driving circuit 6 and it is converted into the light output signal. After this optical output signal is synthesized with the light signal from another light source 10 at the photocoupler 7, a part is picked up as the monitor signal at the photobranch path 8. This optical signal is converted into electric signal at the photodiode 4 and amplified at the monitor signal amplifier 5. Furthre, it is compared with the electric input signal at the light source driving circuit 9, the error signal is amplified and fed to the light source 10.
JP54099334A 1979-08-03 1979-08-03 optical transmitter Expired JPS5830779B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54099334A JPS5830779B2 (en) 1979-08-03 1979-08-03 optical transmitter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54099334A JPS5830779B2 (en) 1979-08-03 1979-08-03 optical transmitter

Publications (2)

Publication Number Publication Date
JPS5623047A true JPS5623047A (en) 1981-03-04
JPS5830779B2 JPS5830779B2 (en) 1983-07-01

Family

ID=14244720

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54099334A Expired JPS5830779B2 (en) 1979-08-03 1979-08-03 optical transmitter

Country Status (1)

Country Link
JP (1) JPS5830779B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57203349A (en) * 1981-06-09 1982-12-13 Nec Corp Laser diode driving circuit
WO1991000659A1 (en) * 1989-06-23 1991-01-10 At&E Corporation Optoelectronic test apparatus for communicating with a receiver
US5535039A (en) * 1994-12-08 1996-07-09 Harris Corporation Divergence feedback in a linear fiber optic analog transmission system and method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57203349A (en) * 1981-06-09 1982-12-13 Nec Corp Laser diode driving circuit
JPS625541B2 (en) * 1981-06-09 1987-02-05 Nippon Electric Co
WO1991000659A1 (en) * 1989-06-23 1991-01-10 At&E Corporation Optoelectronic test apparatus for communicating with a receiver
US5535039A (en) * 1994-12-08 1996-07-09 Harris Corporation Divergence feedback in a linear fiber optic analog transmission system and method

Also Published As

Publication number Publication date
JPS5830779B2 (en) 1983-07-01

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