High-Performance GHz-Bandwidth Acousto-Optic Spectrum Analyzer

L. C. Lennert; I. C. Chang; D. L. Steinmetz; W. Brooks; F. Langdon

doi:10.1117/12.933921

11 August 1983 High-Performance GHz-Bandwidth Acousto-Optic Spectrum Analyzer

L. C. Lennert, I. C. Chang, D. L. Steinmetz, W. Brooks, F. Langdon

Proceedings Volume 0352, Bragg Signal Processing and Output Devices; (1983) https://doi.org/10.1117/12.933921
Event: 26th Annual Technical Symposium, 1982, San Diego, United States

Abstract

This paper describes the system hardware and the performance of a GHz-bandwidth acousto-optic spectrum analyzer. It also discusses the effect of short radar pulses (-100 ns) on the achievable resolution and efficiency. The hardware described includes the laser diode, the collimating optics, the Bragg cell, a relay lens system, a Fourier lens system and a fiber imaging array that couples to discrete detector/amplifier channels. The bandwidth of the system is about 1 GHz, with a dynamic range of 40 dB and a frequency resolution of 50 MHz. The effect of optical window size on resolution and efficiency for short pulses is discussed.

Citation Download Citation

L. C. Lennert, I. C. Chang, D. L. Steinmetz, W. Brooks, and F. Langdon "High-Performance GHz-Bandwidth Acousto-Optic Spectrum Analyzer", Proc. SPIE 0352, Bragg Signal Processing and Output Devices, (11 August 1983); https://doi.org/10.1117/12.933921

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