18 February 1989 Multi-Stage Acousto-Optic Modulator
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Proceedings Volume 0999, Laser Radar III; (1989); doi: 10.1117/12.960225
Event: O-E/Fiber LASE '88, 1988, Boston, MA, United States
Abstract
Bulk acousto-optic modulation was investigated as a technique for generating high bandwidth linear chirp waveforms for ladar applications. The high modulation bandwidth was achieved by cascading the Bragg cells, in which each cell produces only a fraction of the total bandwidth, and large optical beam diameters and high optical energies can be used. Both germanium and thallium arsenic selenide (TAS) were investigated as acousto-optic materials, and comparisons were made between the two materials. Cooled germanium was also studied as a means of lowering the acoustic attenuation, and the thermal conductivity of cryogenically cooled Ge was measured.
© (1989) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
D. R. Suhre, "Multi-Stage Acousto-Optic Modulator", Proc. SPIE 0999, Laser Radar III, (18 February 1989); doi: 10.1117/12.960225; https://doi.org/10.1117/12.960225
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KEYWORDS
Acoustics

Germanium

Bragg cells

Signal attenuation

Transducers

Modulators

Acousto-optics

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