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Broadband, silicon photonic, optical add–drop filters with 3 dB bandwidths up to 11 THz

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Abstract

We present the designs, theory, and experimental demonstrations of ultra-broadband, optical add–drop filters on the silicon-on-insulator platform, realized using period-chirped contra-directional couplers. Our fabricated devices have ultra-broad 3 dB bandwidths of up to 11 THz (88.1 nm), with flat-top responses at their drop ports. All of our devices were fabricated using a commercial, CMOS-compatible, 193 nm deep-ultraviolet lithography process. By using lithography-prediction models, the measured bandwidths, insertion losses, central wavelengths, and extinction ratios of our devices are all in good agreement with our predicted, simulated results. Such filters are necessary for photonic integrated circuits to operate over multiple optical bands.

© 2021 Optical Society of America

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Corrections

Mustafa Hammood, Ajay Mistry, Han Yun, Minglei Ma, Stephen Lin, Lukas Chrostowski, and Nicolas A. F. Jaeger, "Broadband, silicon photonic, optical add–drop filters with 3 dB bandwidths up to 11 THz: publisher’s note," Opt. Lett. 46, 3620-3620 (2021)
https://opg.optica.org/ol/abstract.cfm?uri=ol-46-15-3620

6 July 2021: A typographical correction was made to the funding section.


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Data Availability

Data underlying the results presented in this paper are not publicly available at this time but may be obtained from the authors upon reasonable request.

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