Extending spectral coverage of gas lasers using EO and AO modulators: spectral purity issues

Richard S. Eng; Victor H. Hasson; Benjamin C. Willman; Francis J. Corbett; Michael E. Trainor; Manhar L. Shah

doi:10.1117/12.236867

29 March 1996 Extending spectral coverage of gas lasers using EO and AO modulators: spectral purity issues

Richard S. Eng, Victor H. Hasson, Benjamin C. Willman, Francis J. Corbett, Michael E. Trainor, Manhar L. Shah

Author Affiliations +

Proceedings Volume 2702, Gas and Chemical Lasers; (1996) https://doi.org/10.1117/12.236867
Event: Photonics West '96, 1996, San Jose, CA, United States

Abstract

Both EO and AO modulators can be used to extend the spectral coverage of CO₂ lasers in the 9 - 11 micrometers region. For laser radar local oscillator application, the spectral purity of the frequency shifter output must be high and can be achieved with an AO frequency shifter using a special modulator configuration and a molecular absorption technique. A 500 MHz AO frequency shifter was designed, tested and shown to have a high spectral purity at an output power level of over 50 mW with a conversion efficiency of a few percent.

Citation Download Citation

Richard S. Eng, Victor H. Hasson, Benjamin C. Willman, Francis J. Corbett, Michael E. Trainor, and Manhar L. Shah "Extending spectral coverage of gas lasers using EO and AO modulators: spectral purity issues", Proc. SPIE 2702, Gas and Chemical Lasers, (29 March 1996); https://doi.org/10.1117/12.236867

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