Blazed grating optical fiber polarizing coupler

Details Blazed grating optical fiber polarizing coupler Blazed grating optical fiber polarizing coupler

2007-10-30

2007-10-30

Font, Frank G. (Department: 2883)

Optical waveguides

With optical coupler

Input/output coupler

C385S031000, C385S039000, C385S050000

Reexamination Certificate

active

11444809

ABSTRACT:
The blazed grating optical fiber polarizing coupler comprises a first optical fiber with a Bragg diffraction grating formed in its core at substantially the Brewster's angle with respect to an optical axis of the first optical fiber, a second optical fiber, also with a Bragg diffraction grating formed in its core at substantially the Brewster's angle with respect to the optical axis of the second optical fiber. The Bragg diffraction grating of the first optical fiber is oriented substantially parallel to the Bragg diffraction grating of the second optical fiber so that the cladding of the first optical fiber and the cladding of the second optical fiber are interposed between the cores of the first and second fibers. An optical signal may be coupled from the first optical fiber into the second optical fiber and polarized in the process.

REFERENCES:
patent: 3871742 (1975-03-01), Kaminow et al.
patent: 5778119 (1998-07-01), Farries
patent: 6870991 (2005-03-01), Ohta et al.

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