GB2197461B - Method and apparatus for spectral measurement - Google Patents

Method and apparatus for spectral measurement

Info

Publication number
GB2197461B
GB2197461B GB8625507A GB8625507A GB2197461B GB 2197461 B GB2197461 B GB 2197461B GB 8625507 A GB8625507 A GB 8625507A GB 8625507 A GB8625507 A GB 8625507A GB 2197461 B GB2197461 B GB 2197461B
Authority
GB
United Kingdom
Prior art keywords
spectral measurement
spectral
measurement
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.)
Expired - Fee Related
Application number
GB8625507A
Other versions
GB8625507D0 (en
GB2197461A (en
Inventor
John Edward Carrol
Peter Thomas Johnson
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.)
Plessey Co Ltd
Original Assignee
Plessey 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 Plessey Co Ltd filed Critical Plessey Co Ltd
Priority to GB8625507A priority Critical patent/GB2197461B/en
Publication of GB8625507D0 publication Critical patent/GB8625507D0/en
Priority to AU80146/87A priority patent/AU592476B2/en
Publication of GB2197461A publication Critical patent/GB2197461A/en
Application granted granted Critical
Publication of GB2197461B publication Critical patent/GB2197461B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J9/00—Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J9/00—Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength
    • G01J9/04—Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength by beating two waves of a same source but of different frequency and measuring the phase shift of the lower frequency obtained

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Communication System (AREA)
  • Spectrometry And Color Measurement (AREA)
GB8625507A 1986-10-24 1986-10-24 Method and apparatus for spectral measurement Expired - Fee Related GB2197461B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB8625507A GB2197461B (en) 1986-10-24 1986-10-24 Method and apparatus for spectral measurement
AU80146/87A AU592476B2 (en) 1986-10-24 1987-10-26 Method and apparatus for spectral measurement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8625507A GB2197461B (en) 1986-10-24 1986-10-24 Method and apparatus for spectral measurement

Publications (3)

Publication Number Publication Date
GB8625507D0 GB8625507D0 (en) 1986-11-26
GB2197461A GB2197461A (en) 1988-05-18
GB2197461B true GB2197461B (en) 1990-04-04

Family

ID=10606259

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8625507A Expired - Fee Related GB2197461B (en) 1986-10-24 1986-10-24 Method and apparatus for spectral measurement

Country Status (2)

Country Link
AU (1) AU592476B2 (en)
GB (1) GB2197461B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7068374B2 (en) 2003-06-09 2006-06-27 Agilent Technologies, Inc. Phase-diverse coherent optical spectrum analyzer
US7054012B2 (en) * 2003-06-09 2006-05-30 Agilent Technologies, Inc Spectral phase measurement using phase-diverse coherent optical spectrum analyzer
EP1669729A1 (en) * 2004-12-09 2006-06-14 Agilent Technologies, Inc. (a Delaware Corporation) A phase-diverse coherent optical spectrum analyzer
EP2040052A4 (en) * 2006-05-17 2013-01-02 Fibercom S L Method and device for complex analysis of optical spectra

Also Published As

Publication number Publication date
GB8625507D0 (en) 1986-11-26
AU592476B2 (en) 1990-01-11
GB2197461A (en) 1988-05-18
AU8014687A (en) 1988-04-28

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee