Journal
OPTICS LETTERS
Volume 43, Issue 5, Pages 1071-1074Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.43.001071
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Funding
- National Key R&D Program of China [2016YFB0402501]
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We propose and experimentally demonstrate a compact silicon photonic interleaver based on an interfering loop containing a 1D Fabry-Perot ( FP) cavity for coarse wavelength division multiplexing (CWDM) applications. The interleaver consists of a directional coupler and a FP cavity designed to minimize the channel crosstalk. Instead of using an off-chip optical circulator, the reflection light of the interleaver can be separated from the input by placing two identical interleavers in a Mach-Zehnder interferometer (MZI) structure for practical applications. We also study the impacts of fabrication errors of the MZI structure. The fabricated device has a footprint of 64 mu m x 70 mu m and a channel spacing of similar to 19 nm. The maximum crosstalk is -16 dB in a wavelength range from 1508 nm to 1590 nm. (C) 2018 Optical Society of America
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