Tunable optical filter having large diameter optical...

Details Tunable optical filter having large diameter optical... Tunable optical filter having large diameter optical...

2006-06-13

2006-06-13

Connelly-Cushwa, Michelle (Department: 2874)

Optical waveguides

With optical coupler

Input/output coupler

C385S013000, C385S027000, C385S125000

Reexamination Certificate

active

07062126

ABSTRACT:
A tunable optical filter has a large diameter cane waveguide with “side-holes” in the cane cross-section that reduce the force required to compress the large diameter optical waveguide without overly compromising the buckling strength thereof. The large diameter optical waveguide has a cross-section of at least about 0.3 millimeters, including at least one inner core, a Bragg grating arranged therein, a cladding surrounding the inner core, and a structural configuration for providing a reduced bulk modulus of compressibility and maintaining the anti-buckling strength of the large diameter optical waveguide. The structural configuration reduces the cross-sectional area of the large diameter optical waveguide. These side holes reduce the amount of glass that needs to be compressed, but retains the large diameter.

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