The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 29, 2008

Filed:

May. 31, 2006
Applicants:

Masaji Noguchi, Kawasaki, JP;

Tomohiro Ueno, Kawasaki, JP;

Goji Nakagawa, Kawasaki, JP;

Yutaka Kai, Kawasaki, JP;

Inventors:

Masaji Noguchi, Kawasaki, JP;

Tomohiro Ueno, Kawasaki, JP;

Goji Nakagawa, Kawasaki, JP;

Yutaka Kai, Kawasaki, JP;

Assignee:

Fujitsu Limited, Kawasaki, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F 1/11 (2006.01); G02F 1/33 (2006.01); G02B 26/00 (2006.01); G02B 26/08 (2006.01);
U.S. Cl.
CPC ...
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.


Find Patent Forward Citations

Noguchi, Masaji. (2008). Acousto-optic tunable filter control apparatus automatically adjusting frequency and power of radio frequency signal (U.S. Patent No. 7405858). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7405858

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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