H - Electricity – 04 – B
Patent
H - Electricity
04
B
H04B 10/17 (2006.01)
Patent
CA 2317668
An optical signal amplifier comprises a light source, a depolarizer, and a gain medium that transfers energy from a pump beam output from the depolarizer to the optical signal. The depolarizer may comprise one or more birefringent optical cabers which support two polarization modes, a fast mode and a slow mode. The light propagates in the fast mode at a higher velocity than the light propagates in the slow mode so as to impart phase delay as the light propagates is the birefringeat optical fibers, thereby at least partially depolarizing the beam.
Emori Yoshihiro
Matsushita Shun-Ichi
Namiki Shu
Robic
The Furukawa Electric Co. Ltd.
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