Power-efficient generation of two-octave mid-IR frequency combs in a germanium microresonator-Reference-Cited by-同舟云学术

Power-efficient generation of two-octave mid-IR frequency combs in a germanium microresonator

Published:2018-07-28 Issue:8 Volume:7 Page:1461-1467
ISSN:2192-8614
Container-title:Nanophotonics
language:
Short-container-title:

Author:

Guo Yuhao¹²,Wang Jing¹²,Han Zhaohong³,Wada Kazumi⁴,Kimerling Lionel C.³,Agarwal Anuradha M.³,Michel Jurgen³,Zheng Zheng⁵⁶,Li Guifang¹²⁷,Zhang Lin¹²³

Affiliation:

1. Key Laboratory of Opto-electronic Information Technical Science of Ministry of Education, School of Precision Instruments and Opto-electronics Engineering, Tianjin University, Tianjin 300072, China

2. Key Laboratory of Integrated Opto-electronic Technologies and Devices in Tianjin, School of Precision Instruments and Opto-electronics Engineering, Tianjin University, Tianjin 300072, China

3. Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA

4. Department of Materials Engineering, University of Tokyo, Tokyo 113-8656, Japan

5. School of Electronic and Information Engineering, Beihang University, Beijing 100191, China

6. Collaborative Innovation Center of Geospatial Technology, Wuhan 430079, China

7. College of Optics and Photonics, CREOL and FPCE, University of Central Florida, Orlando, FL 32816, USA

Abstract

AbstractOctave-spanning frequency comb generation in the deep mid-infrared (>5.5 μm) typically requires a high pump power, which is challenging because of the limited power of narrow linewidth lasers at long wavelengths. We propose twofold dispersion engineering for a Ge-on-Si microcavity to enable both dispersion flattening and dispersion hybridization over a wide band from 3.5 to 10 μm. A two-octave mode-locked Kerr frequency comb can be generated from 2.3 to 10.2 μm, with a pump power as low as 180 mW. It has been shown that dispersion flattening greatly enhances the spectral broadening of the generated comb, whereas dispersion hybridization improves its spectral flatness.

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-2017-0131/pdf

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