Flat-top arrayed waveguide grating using a tapered multimode interferometer

An Junming; Yuanda Wu; Hongjie Wang; Jianguang Li; Bo Xing; Xiongwei Hu

doi:10.1117/1.2353150

1 September 2006 Flat-top arrayed waveguide grating using a tapered multimode interferometer

An Junming, Yuanda Wu, Hongjie Wang, Jianguang Li, Bo Xing, Xiongwei Hu

Author Affiliations +

Optical Engineering, Vol. 45, Issue 9, 094601 (September 2006). https://doi.org/10.1117/1.2353150

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.

©(2006) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

An Junming, Yuanda Wu, Hongjie Wang, Jianguang Li, Bo Xing, and Xiongwei Hu "Flat-top arrayed waveguide grating using a tapered multimode interferometer," Optical Engineering 45(9), 094601 (1 September 2006). https://doi.org/10.1117/1.2353150

Published: 1 September 2006

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