Zhang, Yanbing, Reimer, Christian, Wu, Jenny, Roztocki, Piotr, Wetzel, Benjamin, Little, Brent E, Chu, Sai T, Moss, David J, Eggleton, Benjamin J, Kues, Michael and Morandotti, Roberto (2017) Multichannel phase-sensitive amplification in a low-loss CMOS-compatible spiral waveguide. Optics Letters, 42 (21). pp. 4391-4394. ISSN 0146-9592

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Abstract

We investigate single-channel and multichannel phase-sensitive amplification (PSA) in a highly nonlinear, CMOS-compatible spiral waveguide with ultralow linear and negligible nonlinear losses. We achieve a net gain of 10.4 dB and an extinction ratio of 24.6 dB for single-channel operation, as well as a 5 dB gain and a 15 dB extinction ratio spanning over a bandwidth of 24 nm for multiple-channel operation. In addition, we derive a simple analytic solution that enables calculating the maximum phase-sensitive gain in any Kerr medium featuring linear and nonlinear losses. These results not only give a clear guideline for designing PSA-based amplifiers but also show that it is possible to implement both optical regeneration and amplification in a single on-chip device.

Item Type:	Article
Schools and Departments:	School of Mathematical and Physical Sciences > Physics and Astronomy
Research Centres and Groups:	Atomic, Molecular and Optical Physics Research Group
Subjects:	Q Science > QC Physics Q Science > QC Physics > QC0350 Optics. Light
Depositing User:	Benjamin Wetzel
Date Deposited:	09 Nov 2017 15:33
Last Modified:	02 Jul 2019 14:15
URI:	http://sro.sussex.ac.uk/id/eprint/71106

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