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11 March 2016 Planar concave grating wavelength demultiplexers with flattened spectral response based on SU-8 polymer waveguides
Guomin Jiang, Sarfaraz Ali Baig, Hui Lu, Kai Shen, Michael R. Wang
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Optical Engineering, Vol. 55, Issue 3, 037104 (March 2016). https://doi.org/10.1117/1.OE.55.3.037104
Abstract
Planar concave grating wavelength demultiplexers with a flattened spectral response are realized based on SU-8 polymer waveguides. The flattened spectral response is accomplished by using an optimized multimode interference (MMI) coupler as the input aperture of the planar waveguide for all spectrally separated channels. The mode field distribution at the input of the planar waveguide is controlled by adjusting the width of the input taper connected to the MMI coupler. The devices are fabricated by cost-effective one-step UV lithography. Experimental results show that the desired flattened spectral response has been realized. The on-chip loss, crosstalk, and nonuniformity of the fabricated device are −14.8, −22, and 2.5 dB, respectively.
© 2016 Society of Photo-Optical Instrumentation Engineers (SPIE) 0091-3286/2016/$25.00 © 2016 SPIE
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Guomin Jiang, Sarfaraz Ali Baig, Hui Lu, Kai Shen, and Michael R. Wang "Planar concave grating wavelength demultiplexers with flattened spectral response based on SU-8 polymer waveguides," Optical Engineering 55(3), 037104 (11 March 2016). https://doi.org/10.1117/1.OE.55.3.037104
Published: 11 March 2016
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Cited by 6 scholarly publications and 1 patent.
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KEYWORDS
Waveguides
Brain-machine interfaces
Polymers
Polymer multimode waveguides
Planar waveguides
Demultiplexers
Channel waveguides
CHORUS Article. This article was made freely available starting 11 March 2017
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