Diffractive beam splitter for laser Doppler velocimetry

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Title: Diffractive beam splitter for laser Doppler velocimetry
Authors: Schmidt, J.
Völkel, R.
Stork, W.
Sheridan, John T.
Schwider, J.
Streibl, N.
Durst, F.
Permanent link: http://hdl.handle.net/10197/3292
Date: 1-Sep-1992
Abstract: A miniaturized sensor head for the optical measurement of velocities of fluids based on laser Doppler velocimetry is demonstrated. Holographic optical elements mounted on a glass substrate are used for beam splitting and deflection. Volume holograms in dichromated gelatin exhibit good optical efficiency (75% transmission of a cascade of two holographic optical elements). With diffractive devices one can achieve achromatic behavior that makes the sensor insensitive to wavelength drifts or mode hopping of a semiconductor laser.
Funding Details: Not applicable
Type of material: Journal Article
Publisher: Optical Society of America
Copyright (published version): 1992 Optical Society of America
Subject LCSH: Beam splitters
Laser Doppler velocimeter
DOI: 10.1364/OL.17.001240
Language: en
Appears in Collections:Electrical and Electronic Engineering Research Collection

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