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High bandwidth on-chip silicon photonic interleaver

2010; Optica Publishing Group; Volume: 18; Issue: 22 Linguagem: Inglês

10.1364/oe.18.023079

1094-4087

Lian-Wee Luo, Salah Ibrahim, Arthur Nitkowski, Zhi Ding, Carl B. Poitras, S. J. Ben Yoo, Michal Lipson,

Optical Network Technologies

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.