Electrically based spectral power measurements through use of a tunable cw laser
- 15 March 1975
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 26 (6), 309-311
- https://doi.org/10.1063/1.88168
Abstract
A new approach to radiant power measurements is described. A continuously tunable cw dye laser was used to measure the absolute spectral response of a silicon photodiode and narrow band−pass filter by comparison with an electrically calibrated pyroelectric detector. The filtered photodetector was then used to measure the spectral power density from a standard lamp that had been calibrated by the classical technique. The agreement of better than 1% between the two measurements is well within the uncertainties identified with each measurement individually, of the order of 1%. A number of advantages in the new technique are identified.Keywords
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