Planar concave grating with flattened spectral response for wavelength demultiplexing optical interconnection

Guomin Jiang; Sarfaraz Baig; Hui Lu; Kai Shen; Michael R. Wang

doi:10.1117/12.2080380

3 April 2015 Planar concave grating with flattened spectral response for wavelength demultiplexing optical interconnection

Guomin Jiang, Sarfaraz Baig, Hui Lu, Kai Shen, Michael R. Wang

Author Affiliations +

Proceedings Volume 9368, Optical Interconnects XV; 93680R (2015) https://doi.org/10.1117/12.2080380
Event: SPIE OPTO, 2015, San Francisco, California, United States

Abstract

A 4-channel planar concave grating device with a flattened spectral response based on SU-8 polymer is presented. The flattened spectral response is accomplished by using an optimized multi-mode interference coupler as the input aperture of the device for spectrally separated channels. The mode field distribution in the input plane is controlled by adjusting the width of input taper coupled to the multi-mode interference coupler. The effects of the input taper width on the flattened spectral response are demonstrated in detail through simulation results. The devices are realized by using an SU-8 polymer strip waveguide with a UV lithography technology. Experimental results show that the flattened spectral response can be easily controlled by adjusting the taper width.

Citation Download Citation

Guomin Jiang, Sarfaraz Baig, Hui Lu, Kai Shen, and Michael R. Wang "Planar concave grating with flattened spectral response for wavelength demultiplexing optical interconnection", Proc. SPIE 9368, Optical Interconnects XV, 93680R (3 April 2015); https://doi.org/10.1117/12.2080380

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