Writing waveguides with an arbitrary Bragg wavelength

Details Writing waveguides with an arbitrary Bragg wavelength Writing waveguides with an arbitrary Bragg wavelength

2005-06-07

2005-06-07

Lee, John D. (Department: 2874)

Optical waveguides

With optical coupler

Input/output coupler

C385S031000

Reexamination Certificate

active

06904202

ABSTRACT:
A Bragg grating may be written at an arbitrary wavelength without extensive recalibration or reconfiguration of the writing equipment in some embodiments. A pair of writing beams may be used to expose a waveguide. The crossing angles of the writing beams may be adjusted. In one embodiment, circular wedges in each writing beam may be rotated about their axes to alter the crossing angle. In another embodiment, acousto-optic Bragg cells may be utilized to change the writing angle of the writing beams.

REFERENCES:
patent: 4093339 (1978-06-01), Cross
patent: 5066133 (1991-11-01), Brienza
patent: 5367588 (1994-11-01), Hill et al.
patent: 5912999 (1999-06-01), Brennan et al.
patent: 5945261 (1999-08-01), Rourke
patent: 6310996 (2001-10-01), Byron
patent: 6384977 (2002-05-01), Laming et al.
patent: 6549705 (2003-04-01), Laming et al.
patent: 6690860 (2004-02-01), Matsumoto et al.

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