Apparatus and method for compensation of central wavelength...

Details Apparatus and method for compensation of central wavelength... Apparatus and method for compensation of central wavelength...

2005-02-08

2005-02-08

Tremblay, Mark (Department: 2876)

Optical waveguides

With optical coupler

Input/output coupler

Reexamination Certificate

active

06853771

ABSTRACT:
An apparatus and method for compensation of central wavelength shifting of a fiber grating by material with Invar effect. In the present invention, a substrate having a negative thermal expansion coefficient and a fiber with fiber grating is provided, and two portions of the fiber at both sides of the fiber grating are fixed to the substrate. The substrate and the fiber are satisfied within-line-formulae description="In-line Formulae" end="lead"?αeffλbragg=KλAfEf(αc−αf)in-line-formulae description="In-line Formulae" end="tail"?in which αeffis an effective thermal expansion coefficient of the fiber grating, λbraggis a Bragg wavelength, Kλis a constant, Afis a cross-section area of the fiber, Efis an elastic modulus of the fiber, αcis the negative thermal expansion coefficient of the substrate, and αfis a thermal expansion coefficient of the fiber.

REFERENCES:
patent: 5694503 (1997-12-01), Fleming et al.
patent: 6067392 (2000-05-01), Wakami et al.
patent: 6148128 (2000-11-01), Jin et al.
patent: 6327405 (2001-12-01), Leyva et al.
patent: 6400884 (2002-06-01), Matano et al.
patent: 6449402 (2002-09-01), Bettman et al.
patent: 6493486 (2002-12-01), Chen
patent: 6603900 (2003-08-01), Bookbinder et al.
patent: 20020003927 (2002-01-01), Tamura et al.

Affiliated with

Also associated with

Rating

Apparatus and method for compensation of central wavelength... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus and method for compensation of central wavelength..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for compensation of central wavelength... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3468292