Acousto-optic tunable filter control apparatus automatically...

Details Acousto-optic tunable filter control apparatus automatically... Acousto-optic tunable filter control apparatus automatically...

2006-05-31

2008-07-29

Sugarman, Scott J. (Department: 2873)

Optical: systems and elements

Optical modulator

Light wave temporal modulation

C359S305000, C359S308000, C359S290000, C359S298000

Reexamination Certificate

active

07405858

ABSTRACT:
An AOTF control apparatus, which applies an RF signal to an AOTF to allow a selected light to pass through the AOTF, includes: a first calculating unit calculating a relationship between a frequency of the RF signal and a wavelength of the selected light based on a frequency of the RF signal that allows a reference light to pass through the AOTF; and a second calculating unit calculating a relationship between a power of the RF signal and an attenuation amount of the selected light based on an input/output power of the reference signal at the input/output of the AOTF.

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