Title :
Ultra-Compact Silicon Photonic 512 × 512 25 GHz Arrayed Waveguide Grating Router
Author :
Cheung, Stephane ; Tiehui Su ; Okamoto, K. ; Yoo, S.J.B.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of California, Davis, Davis, CA, USA
Abstract :
This paper discusses design, fabrication, and characterization of a 512 × 512 arrayed waveguide grating router (AWGR) with a channel spacing of 25 GHz. The dimensions of the AWGR is 16 mm × 11 mm and is fabricated on a 250 nm silicon-on-insulator platform. The measured channel crosstalk is approximately -4 dB without any compensation for the phase errors in the arrayed waveguides. The AWGR spectrum in the arrayed waveguide grating arms were characterized by using an optical vector network analyzer. Fabrication details of obtaining low loss silicon ridge waveguides are also discussed.
Keywords :
arrayed waveguide gratings; integrated optics; optical communication equipment; optical crosstalk; optical design techniques; optical fabrication; silicon-on-insulator; wavelength division multiplexing; AWGR characterization; AWGR design; AWGR fabrication; AWGR spectrum; arrayed waveguide grating router; channel crosstalk measurement; channel spacing; frequency 25 GHz; optical loss; optical vector network analyzer; silicon ridge waveguides; silicon-on-insulator platform; size 250 nm; ultracompact silicon photonic; Arrayed waveguide gratings; Indexes; Optical device fabrication; Silicon; Slabs; Integrated optical devices; data centers; optical interconnects; waveguide filters; wavelength-division-multiplexing (WDM);
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/JSTQE.2013.2295879
