A WAVE LENGTH DETECTOR FOR MONOCHROMATIC LIGHT BEAMS

PDF

Authors
  1. Phong, L.N.
  2. Shih, I.
Corporate Authors
Defence Research Establishment Valcartier, Valcartier QUE (CAN)
Abstract
Wavelength detection of monochromatic light beams can be achieved with a pair of optical sensors located behind a linear variable filter. The active area of one sensor increases, whereas that of the other sensor decreases along the direction of increasing value of transmission wavelength of the filter. By computing the ratio of the photoresponse of one sensor to the other, the wavelength can be obtained from a calibration chart. Proof-of-concept wavelength detectors were constructed using photoresistive superconductor sensors. Results obtained for the spectral range of 700-1100 nm are presented and discussed.
Keywords
Optical sensors;Linear variable filters
Date of publication
30 Aug 1996
Number of Pages
2
Reprinted from
American Institute of Physics, vol 67, no 8, 1996, p 2985-2986
DSTKIM No
96-02957
CANDIS No
499486
Format(s):
Hardcopy;Document Image stored on Optical Disk

Permanent link

Document 1 of 1

Date modified: