High bandwidth on-chip silicon photonic interleaver

We demonstrate a 120 GHz 3-dB bandwidth on-chip silicon photonic interleaver with a flat passband over a broad spectral range of 70 nm. The structure of the interleaver is based on an asymmetric Mach-Zehnder interferometer (MZI) with 3 ring resonators coupled to the arms of the MZI. The transmission...

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Bibliographic Details
Published in:Optics express 2010-10, Vol.18 (22), p.23079-23087
Main Authors: Luo, Lian-Wee, Ibrahim, Salah, Nitkowski, Arthur, Ding, Zhi, Poitras, Carl B, Ben Yoo, S J, Lipson, Michal
Format: Article
Language:English
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Summary:We demonstrate a 120 GHz 3-dB bandwidth on-chip silicon photonic interleaver with a flat passband over a broad spectral range of 70 nm. The structure of the interleaver is based on an asymmetric Mach-Zehnder interferometer (MZI) with 3 ring resonators coupled to the arms of the MZI. The transmission spectra of this device depict a rapid roll-off on the band edges, where the 20-dB bandwidth is measured to be 142 GHz. This device is optimized for operation in the C-band with a channel crosstalk as low as -20 dB. The device also has full reconfiguration capability to compensate for fabrication imperfections.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.18.023079