TechRxiv
Rizzo_PTL_2020.pdf (9.85 MB)

Ultra-Broadband Interleaver for Extreme Wavelength Scaling in Silicon Photonic Links

Download (9.85 MB)
preprint
posted on 20.10.2020, 02:52 by Anthony Rizzo, Qixiang Cheng, Stuart Daudlin, Keren Bergman
We demonstrate an ultra-broadband silicon photonic interleaver capable of interleaving and de-interleaving frequency comb lines over a 125 nm bandwidth in the extended C- and L-bands. We use a ring-assisted asymmetric Mach Zehnder interferometer to achieve a flat-top passband response while maintaining a compact device footprint. The device has a 400 GHz free spectral range to divide an optical frequency comb with 200 GHz channel spacing into two output groups, each with a channel spacing of 400 GHz, yielding a potential capacity of 78 total wavelength-division multiplexed channels between 1525 nm and 1650 nm. This device represents an important step towards realizing highly parallel integrated optical links with broadband frequency comb sources within the silicon photonics platform.

Funding

ARPA-E ENLITENED (DE-AR000843)

DARPA PIPES (HR00111920014)

History

Email Address of Submitting Author

anthony.rizzo@columbia.edu

ORCID of Submitting Author

https://orcid.org/0000-0003-4752-797X

Submitting Author's Institution

Columbia University

Submitting Author's Country

United States of America

Licence

Exports

Licence

Exports