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Optical Engineering

Flat-top arrayed waveguide grating using a tapered multimode interferometer
Author(s): An Junming; Yuanda Wu; Hongjie Wang; Jianguang Li; Bo Xing; Xiongwei Hu
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Paper Abstract

A 40-channel 0.8-nm-spaced flat-top silica-based arrayed waveguide grating (AWG) with a tapered multimode interferometer (MMI) at the end of its input waveguide has been experimentally demonstrated for the first time. By adding the MMI, the 1-dB and 3-dB bandwidths are increased to 0.45 and 0.62 nm, respectively. The insertion loss (IS) of the device ranges from 3.8 to 6.8 dB. The IS uniformity is better than 3.0 dB. The crosstalk is better than –25 dB. Compared to the AWG with a rectangular MMI, the AWG with a tapered MMI shows better IS, crosstalk, and ripple.

Paper Details

Date Published: 1 September 2006
PDF: 4 pages
Opt. Eng. 45(9) 094601 doi: 10.1117/1.2353150
Published in: Optical Engineering Volume 45, Issue 9
Show Author Affiliations
An Junming, Institute of Semiconductors (China)
Yuanda Wu, Institute of Semiconductors (China)
Hongjie Wang, Institute of Semiconductors (China)
Jianguang Li, Institute of Semiconductors (China)
Bo Xing, Institute of Semiconductors (China)
Xiongwei Hu, Institute of Semiconductors (China)

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