Acousto-optic tunable filter based on isotropic acousto-optic di

Details Acousto-optic tunable filter based on isotropic acousto-optic di Acousto-optic tunable filter based on isotropic acousto-optic di

1994-04-19

1999-06-01

Nelms, David C.

Optical: systems and elements

Optical modulator

Light wave directional modulation

359311, 359285, 359287, G02F 133

Patent

active

059093048

ABSTRACT:
An acousto-optic tunable filter based on isotropic acousto-optic diffraction using phased array transducers. The isotropic AOTF provides the advantages of narrow optical passband, low acoustic frequencies, and insensitivity to the input optical polarization. Preferred embodiments of the isotropic AOTFs are described for optimized spectral resolution and diffraction efficiency.

REFERENCES:
patent: 4052121 (1977-10-01), Chang
patent: 4342502 (1982-08-01), Chang
patent: 5329397 (1994-07-01), Chang

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