JPS573443A - Measuring device of nonlinear distortion for optical receiver - Google Patents

Measuring device of nonlinear distortion for optical receiver

Info

Publication number
JPS573443A
JPS573443A JP7671480A JP7671480A JPS573443A JP S573443 A JPS573443 A JP S573443A JP 7671480 A JP7671480 A JP 7671480A JP 7671480 A JP7671480 A JP 7671480A JP S573443 A JPS573443 A JP S573443A
Authority
JP
Japan
Prior art keywords
optical
signal
measuring
optical receiver
chrominance subcarrier
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
JP7671480A
Other languages
Japanese (ja)
Other versions
JPS5911214B2 (en
Inventor
Takeshi Koseki
Toshifumi Tamura
Masaru Nakamura
Masataka 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 JP55076714A priority Critical patent/JPS5911214B2/en
Publication of JPS573443A publication Critical patent/JPS573443A/en
Publication of JPS5911214B2 publication Critical patent/JPS5911214B2/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
    • H04B10/60—Receivers
    • H04B10/66—Non-coherent receivers, e.g. using direct detection
    • H04B10/69—Electrical arrangements in the receiver
    • H04B10/697—Arrangements for reducing noise and distortion

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
  • Optical Communication System (AREA)

Abstract

PURPOSE:To measure nonlinear distortion of an optical receiver unit, by coupling a video test signal for linearity measurement eliminating chrominance subcarrier outputted respectively from two optical transmitters with a chrominance subcarrier, and synthesizing an optical DG/DP measuring signal. CONSTITUTION:The chrominance subcarrier is rejeced from a linearity measuring video test signal 2 outputted from a DG/DP measuring signal generator 10 at a low- pass filter 11, and a linearity measuring optical test signal 12 rejecting chrominance signal is transmitted with an optical transmitter 5a. On the other hand, a chrominance subcarrier 13 is outputted from the signal generator 10, and an optical signal 15 subjected to intensity modulation with the chrominance subcarrier is transmitted with an optical transmitter 5b through a level adjuster 14. The signals 12, 15 are coupled at an photocoupler 16 to synthesize an optical DG/DP measuring signal 17. Further, the measuring signal 17 in a specified level is inputted to an optical receiver 6 and the electric output of the optical receiver 6 is measured at a DG/DP measuring device 4, allowing to measure nonlinear distortion of the optical receiver 6.
JP55076714A 1980-06-09 1980-06-09 Optical receiver nonlinear distortion measurement device Expired JPS5911214B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55076714A JPS5911214B2 (en) 1980-06-09 1980-06-09 Optical receiver nonlinear distortion measurement device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55076714A JPS5911214B2 (en) 1980-06-09 1980-06-09 Optical receiver nonlinear distortion measurement device

Publications (2)

Publication Number Publication Date
JPS573443A true JPS573443A (en) 1982-01-08
JPS5911214B2 JPS5911214B2 (en) 1984-03-14

Family

ID=13613212

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55076714A Expired JPS5911214B2 (en) 1980-06-09 1980-06-09 Optical receiver nonlinear distortion measurement device

Country Status (1)

Country Link
JP (1) JPS5911214B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1475907A1 (en) * 2003-05-05 2004-11-10 Harman/Becker Automotive Systems GmbH A method of testing an optical electrical converter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1475907A1 (en) * 2003-05-05 2004-11-10 Harman/Becker Automotive Systems GmbH A method of testing an optical electrical converter
EP1482663A1 (en) * 2003-05-05 2004-12-01 Harman Becker Automotive Systems GmbH Method of testing an optical electrical converter

Also Published As

Publication number Publication date
JPS5911214B2 (en) 1984-03-14

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