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Proceedings Paper

Simple device to measure laser mirror parameters
Author(s): Om Prakash
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Paper Abstract

In the proposed design of the spectrometer provision has been made to measure the reflectivity, transmittance and scattering factor of laser mirrors and their glass blanks before actual coating. The spectrometer is in the form of a double beam ratio recording system and works on the principle of modulation radiometry. The design is expected to provide lower value of uncertainty, on the order of 5 part in 10000 in the measurements, because of use of integrating sphere, solid state signal processing electronics and single photodetector. The remarkable features of this design are: ambient light does not affect the measurements and care has been taken to reduce the effects of source fluctuations and polarization due to presence of optical components.

Paper Details

Date Published: 14 April 1999
PDF: 5 pages
Proc. SPIE 3626, Testing, Packaging, Reliability, and Applications of Semiconductor Lasers IV, (14 April 1999); doi: 10.1117/12.345439
Show Author Affiliations
Om Prakash, National Physical Lab. (India)

Published in SPIE Proceedings Vol. 3626:
Testing, Packaging, Reliability, and Applications of Semiconductor Lasers IV
Mahmoud Fallahi; S. C. Wang; Mahmoud Fallahi; Kurt J. Linden; S. C. Wang, Editor(s)

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