Optical multiplexer/demultiplexer and adjustment method thereof

Details Optical multiplexer/demultiplexer and adjustment method thereof Optical multiplexer/demultiplexer and adjustment method thereof

H - Electricity

04

J

H04J 14/02 (2006.01) G02B 6/34 (2006.01) G02B 26/08 (2006.01)

Patent

CA 2406358

The present invention relates to an optical multiplexer/demultiplexer. In the multiplexer/demultiplexer, a first grating receives to diffract a multi-wavelength light signal from a first port into light signals with different wavelengths. A second grating diffracts these light signals towards second ports. The second grating is disposed parallel with the first grating. The second grating has the same grating interval and grating direction as the first grating. The light signals diffracted by the second grating travel parallel with each other. Therefore, the light signals can efficiently enter the second ports without sophisticated lens design and adjustment of the optical system.

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