An optical parametric Bragg amplifier on a CMOS chip-Reference-Cited by-同舟云学术

An optical parametric Bragg amplifier on a CMOS chip

Published:2021-08-19 Issue:13 Volume:10 Page:3507-3518
ISSN:2192-8614
Container-title:Nanophotonics
language:en
Short-container-title:

Author:

Choi Ju Won¹^ORCID,Sohn Byoung-Uk¹,Sahin Ezgi¹,Chen George F. R.¹,Xing Peng¹,Ng Doris K. T.²,Eggleton Benjamin J.³⁴,Tan Dawn T. H.¹²

Affiliation:

1. Photonics Devices and System Group, Singapore University of Technology and Design , 8 Somapah Rd , Singapore 487372 , Singapore

2. Institute of Microelectronics, A*STAR , 2 Fusionopolis Way, #08-02, Innovis Tower , Singapore 138634 , Singapore

3. Institute of Photonics and Optical Science, School of Physics, The University of Sydney , Sydney , NSW 2006 , Australia

4. The University of Sydney Nano Institute (Sydney Nano), The University of Sydney , Sydney , NSW 2006 , Australia

Abstract

Abstract We demonstrate a complementary metal–oxide–semiconductor (CMOS)-compatible optical parametric Bragg amplifier on an ultra-silicon-rich nitride chip. The amplifier design incorporates advantageous group index properties in a nonlinear Bragg grating to circumvent phase matching limitations arising from the bulk material and waveguide dispersion. The grating structure further augments the effective nonlinear parameter of 800 W−1/m, considerably lowering the power required for the observation of strong parametric gain. On/off optical parametric gain of 20 dB is achieved using a low peak power of 1.6 W, in good agreement with numerical calculations. This represents a 7 dB improvement in the parametric gain compared to the absence of grating enhancement which is attributed to the Bragg grating induced superior phase matching.

Publisher

Walter de Gruyter GmbH

Subject

Electrical and Electronic Engineering,Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials,Biotechnology

Link

https://www.degruyter.com/document/doi/10.1515/nanoph-2021-0302/pdf

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