Pure silica core, high birefringence, single polarization...

Details Pure silica core, high birefringence, single polarization... Pure silica core, high birefringence, single polarization...

2011-03-15

2011-03-15

Peng, Charlie (Department: 2883)

Optical waveguides

Optical transmission cable

Tightly confined

C385S102000

Reexamination Certificate

active

07907807

ABSTRACT:
Methods and apparatus provide for birefringent waveguides suitable for optical systems exhibiting polarization dependence such as interferometer sensors including Sagnac interferometric fiber optic gyroscopes (IFOG). The waveguides, for some embodiments, may offer single polarization performance over lengths of about a kilometer or more due to polarization dependent attenuation. According to some embodiments, the waveguides incorporate a pure silica core for resistance to radiation-induced attenuation (RIA).

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