TW200609495A - Optical spectrum measuring apparatus of eliminating polarization dependence and method for the same - Google Patents

Optical spectrum measuring apparatus of eliminating polarization dependence and method for the same

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Publication number
TW200609495A
TW200609495A TW093126338A TW93126338A TW200609495A TW 200609495 A TW200609495 A TW 200609495A TW 093126338 A TW093126338 A TW 093126338A TW 93126338 A TW93126338 A TW 93126338A TW 200609495 A TW200609495 A TW 200609495A
Authority
TW
Taiwan
Prior art keywords
light beam
polarization
measuring apparatus
optical spectrum
spectrum measuring
Prior art date
Application number
TW093126338A
Other languages
Chinese (zh)
Other versions
TWI248512B (en
Inventor
Jiun-Yi Yeh
Original Assignee
Ind Tech Res Inst
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 Ind Tech Res Inst filed Critical Ind Tech Res Inst
Priority to TW93126338A priority Critical patent/TWI248512B/en
Application granted granted Critical
Publication of TWI248512B publication Critical patent/TWI248512B/en
Publication of TW200609495A publication Critical patent/TW200609495A/en

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  • Spectrometry And Color Measurement (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

The present optical spectrum measuring apparatus of eliminating polarization dependence comprises a light source for generating a light beam, a first lens for collimating the light beam, a polarization phase retarder positioned on the optical path of the light beam, a dispersing device for separating the light beam into a plurality of sub-lights with different wavelengths, and a photo detector for detecting the intensity of the sub-light. The polarization phase retarder can be a half-wave retarder or an achromatic half-wave retarder for adjusting the polarization direction of a predetermined portion of light beam. Particularly, the polarization phase retarder rotates the polarization direction of penetrating light beam by 90 degrees. Preferably, the polarization phase retarder is positioned between the light source and the first lens or between the first lens and the dispersing device.
TW93126338A 2004-09-01 2004-09-01 Optical spectrum measuring apparatus of eliminating polarization dependence and method for the same TWI248512B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW93126338A TWI248512B (en) 2004-09-01 2004-09-01 Optical spectrum measuring apparatus of eliminating polarization dependence and method for the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW93126338A TWI248512B (en) 2004-09-01 2004-09-01 Optical spectrum measuring apparatus of eliminating polarization dependence and method for the same

Publications (2)

Publication Number Publication Date
TWI248512B TWI248512B (en) 2006-02-01
TW200609495A true TW200609495A (en) 2006-03-16

Family

ID=37429134

Family Applications (1)

Application Number Title Priority Date Filing Date
TW93126338A TWI248512B (en) 2004-09-01 2004-09-01 Optical spectrum measuring apparatus of eliminating polarization dependence and method for the same

Country Status (1)

Country Link
TW (1) TWI248512B (en)

Also Published As

Publication number Publication date
TWI248512B (en) 2006-02-01

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