Single polarization fiber and amplifier

Details Single polarization fiber and amplifier Single polarization fiber and amplifier

1995-03-02

1996-08-13

Bovernick, Rodney B.

Optical waveguides

Polarization without modulation

385 37, G02B 600

Patent

active

055464815

ABSTRACT:
A single polarization fiber and/or amplifier includes a non-polarization preserving fiber 10 having a fiber grating tap 12 which has a predetermined length and strength (.DELTA.n
) and is oriented at a predetermined angle .theta. and has a grating spacing D so as to couple-out of the fiber 10 a predetermined amount of one polarization 24 over a predetermined wavelength range of an input light 16 and pass the other polarization 28 as output light 26, the grating length being substantially the length of the fiber 10. Alternatively, all or a portion of the fiber 10 may be doped to form a polarization sensitive optical amplifier.

REFERENCES:
patent: 5048913 (1991-09-01), Glenn et al.
patent: 5237576 (1993-08-01), DiGiovanni et al.
patent: 5243609 (1993-09-01), Huber
Optical Waveguide Theory, Allan W. Snyder and John D. Love, Jan. 1983, pp. 460-473, Chapter 22, "Nonuniform fibers".
Optical Society of America, Optical Fiber Communication Conference, Jan. 1990 Technical Digest Series, vol. 1, 22-26 Jan. 1990, G. Meltz et al., "In-fiber Bragg grating tap".

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