H - Electricity – 04 – B
Patent
H - Electricity
04
B
H04B 10/08 (2006.01) G02B 26/06 (2006.01) G02F 1/01 (2006.01)
Patent
CA 2569764
The present invention provides an optical phase modulation method using optical frequency shift devices. By accurately controlling the frequency shift, the phase delay experienced by the light signal through an optical medium (fibre, free space, vacuum, or other) can be controlled with high resolution. Hence, phase change can be achieved through frequency change. This technique can be applied to a wide range of applications whenever phase modulation is needed, such as in various phase- shifted keying techniques in optical communications, and in optical metrology. The disclosed phase modulation method can also be used as a phase encoding technique in quantum key distribution.
Li Bing
Lo Hoi-Kwong
Qian Li
Zhao Yi
de Fazekas Anthony
Li Bing
Lo Hoi-Kwong
Qian Li
Zhao Yi
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