Wavelength control of a diode laser for distance measuring interferometry

Fitzroy Crosdale; Russell J. Palum

doi:10.1117/12.18287

1 May 1990 Wavelength control of a diode laser for distance measuring interferometry

Fitzroy Crosdale, Russell J. Palum

Proceedings Volume 1219, Laser Diode Technology and Applications II; (1990) https://doi.org/10.1117/12.18287
Event: OE/LASE '90, 1990, Los Angeles, CA, United States

Abstract

A breadboard diode-laser-based distance-measuring interferometer which measures relative thsp1ement has been developed. A temperature-controlled Fabry-Perot etalon is used in a closed-loop system to lock the wavelength emitted by the diode laser source to one of its passbands. Experiments performed using a wavemeter and a commercial laser position transducer indicate that the locked wavelength is returned to the same absolute value to within 1 ppm (part per million) from turn-on to turn-on of the control system, and that the wavelength fluctuation is reduced to less than 0.1 ppm.

Citation Download Citation

Fitzroy Crosdale and Russell J. Palum "Wavelength control of a diode laser for distance measuring interferometry", Proc. SPIE 1219, Laser Diode Technology and Applications II, (1 May 1990); https://doi.org/10.1117/12.18287

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