Method of and apparatus for setting apparent length of...

Details Method of and apparatus for setting apparent length of... Method of and apparatus for setting apparent length of...

2005-11-29

2005-11-29

Pak, Sung (Department: 2874)

Optical waveguides

Miscellaneous

C385S123000, C356S073100

Reexamination Certificate

active

06970635

ABSTRACT:
A method of setting an apparent optical length of an optical fiber for a given optical wavelength includes heating the trimmed optical fiber to selectively vary a refractive index thereof in response to comparison of a determined arrival phase angle with a reference value representing a desired arrival phase angle to change the determined arrival phase angle so that a difference between the desired and determined arrival phase angles does not exceed an acceptable tolerance of a phase error.

REFERENCES:
patent: 6442311 (2002-08-01), Barbarossa et al.
patent: 6823110 (2004-11-01), Battiato et al.
patent: 2003/0138205 (2003-07-01), Dragone

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