Fabrication of fiber optic grating apparatus and method

Details Fabrication of fiber optic grating apparatus and method Fabrication of fiber optic grating apparatus and method

2005-03-29

2005-03-29

Williams, Joseph (Department: 2879)

Optical waveguides

With optical coupler

Input/output coupler

C438S031000

Reexamination Certificate

active

06873762

ABSTRACT:
An apparatus and method for forming a Bragg grating on an optical fiber using a phase mask to diffract a beam of coherent energy and a lens combined with a pair of mirrors to produce two symmetrical virtual point sources of coherent energy in the plane of the optical fiber. The two virtual light sources produce an interference pattern along the optical fiber. In a further embodiment, the period of the pattern and therefore the Bragg wavelength grating applied to the fiber is varied with the position of the optical fiber relative the lens.

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Y. Wang, J. Grant, A. Sharma, & G. Myers; Modified Talbot Interferometer for Fabrication of Fiber-Optic Grating Filter Over a Wide Range of Bragg Wavelength and Bandwidth Using a Single Phase Mask; Journal of Lightwave Technology; pp. 1569-1573; Oct. 2001; vol. 19, No. 10.

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