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Multichannel phase-sensitive amplification in a low-loss CMOS-compatible spiral waveguide

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posted on 2023-06-09, 08:46 authored by Yanbing Zhang, Christian Reimer, Jenny Wu, Piotr Roztocki, Benjamin Wetzel, Brent E Little, Sai T Chu, David J Moss, Benjamin J Eggleton, Michael Kues, Roberto Morandotti
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.

History

Publication status

  • Published

File Version

  • Accepted version

Journal

Optics Letters

ISSN

0146-9592

Publisher

Optical Society of America

Issue

21

Volume

42

Page range

4391-4394

Department affiliated with

  • Physics and Astronomy Publications

Research groups affiliated with

  • Atomic, Molecular and Optical Physics Research Group Publications

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2017-11-09

First Open Access (FOA) Date

2018-01-12

First Compliant Deposit (FCD) Date

2018-01-12

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