Optical waveguides – Polarization without modulation
Patent
1997-02-12
2000-12-19
Ullah, Akm E.
Optical waveguides
Polarization without modulation
G02B 600
Patent
active
061636304
ABSTRACT:
An optical fiber path in a light amplifying apparatus such as a ring laser, figure eight laser, or nonlinear optical loop mirror, comprises circularly birefringent fiber in order to generate twisted solitons. The light being amplified will follow the pitch of a principle axis of the circularly birefringent fiber as it passes through the optical fiber path. Gain from any other possible polarization lessens as the principle axis polarization constructively interferes upon each round trip. The resulting pulses should have a linear polarization everywhere and the plane of polarization should rotate as a function of space and time. Simultaneous generation of orthogonal, twisted solitons from a single fiber laser source may be accomplished by not placing an optical isolator in the fiber laser optical path.
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Chervenak William J.
Corning Incorporated
Ullah Akm E.
LandOfFree
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