Industrial Technology Research Institute

Eric-G Lin

Chang-Sheng Chu

Ying-Tsung Lu

The invention provides a planar waveguide diffractive 1&times;N beam splitter/coupler. It utilizes an integrated circuit fabrication process to fabricate an integrated optic. A Fourier transform diffractive optical element (DOE) is formed on one end of a planar waveguide (planar lightwave circuit; PLC). Thus, an incident beam coming from one end of the planar waveguide can be diffracted into a plurality of output beams. On the other hand, a plurality of incident beams coming from one end of the planar waveguide can be coupled into one output beam. The beam splitter/coupler is easy to fabricate, small in size and more flexible for applications.

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Hsinchu Hsien, Taiwan

Eric-G Lin