Ultra-Compact Silicon Photonic 512 × 512 25 GHz Arrayed Waveguide Grating Router

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 approxima...

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Bibliographic Details
Published in:IEEE journal of selected topics in quantum electronics 2014-07, Vol.20 (4), p.310-316
Main Authors: Cheung, Stanley, Su, Tiehui, Okamoto, Katsunari, Yoo, S. J. B.
Format: Article
Language:English
Subjects:
Arrayed waveguide gratings
Channels
Compensation
data centers
Diffraction gratings
Gratings (spectra)
Indexes
Integrated optical devices
Optical device fabrication
optical interconnects
Phase error
Routers
Silicon
Slabs
waveguide filters
Waveguides
wavelength-division-multiplexing (WDM)
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Description
Summary: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.
ISSN:1077-260X
1558-4542
DOI:10.1109/JSTQE.2013.2295879