Tunable optical fiber with compression ring

Details Tunable optical fiber with compression ring Tunable optical fiber with compression ring

2005-09-06

2005-09-06

Font, Frank G. (Department: 2883)

Optical waveguides

With optical coupler

Movable coupler

C385S039000, C385S049000, C359S578000, C359S579000

Reexamination Certificate

active

06941038

ABSTRACT:
A tunable optical filter (30) includes a thin film waveguide (10) and a ring (308) surrounding the thin film waveguide. The ring can be mechanically pressed inwardly toward or pulled outwardly away from the thin film waveguide by external radial forces (306). A central wavelength of the tunable optical filter can be tuned according to the external radial forces. The thin film waveguide includes a substrate (102) and a multi-layered thin film (104) deposited on the substrate. The multi-layered thin film includes high refractive index layers (106) and low refractive index layers (108) alternately superposed on one another to form the multi-layered structure.

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