Narrow linewidth opo light source for precision spectroscopy

Cheng, Cunfeng

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https://hdl.handle.net/2142/107431 Copy

Description

Title

Narrow linewidth opo light source for precision spectroscopy

Author(s)

Cheng, Cunfeng

Contributor(s)

• Hu, Shui-Ming
• Sun, Yu Robert
• Zhang, Zitan

Issue Date

2020-06-23

Keyword(s)

Mini-symposium: Precision Spectroscopy for Fundamental Physics

Date of Ingest

2020-06-26T03:04:22Z

Abstract

Precision spectroscopy of fundamental bands of molecules in the mid-infrared (MIR) region is of great interest in applications of trace detection and testing fundamental physics, where high-power and narrow-linewidth MIR lasers are needed. By controlling the phase noise of the signal and pump light of a continuous wave optical parametric oscillator (OPO), we established a broadly tunable MIR light source which has an output power of several hundred milliwatts and a linewidth of a few tens kilohertz. The long term frequency drift of the MIR laser was reduced and calibrated utilizing an optical frequency comb. The performance of the light source was investigated and tested by measuring the saturated absorption spectroscopy of a few molecular transitions at 3.3 $\mu$m.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

Text

Genre of Resource

Conference Paper / Presentation

Language

eng

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http://hdl.handle.net/2142/107431

Copyright and License Information

Copyright 2020 is held by the Author(s)

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