Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
Journal Home About Issues in Progress Current Issue All Issues Early Posting

Erbium-doped fiber amplifier (EDFA)-assisted laser heterodyne radiometer (LHR) working in the shot-noise-dominated regime

Jun Li, Zhengyue Xue, Fengjiao Shen, Jingjing Wang, Yue Li, Guishi Wang, Kun Liu, Weidong Chen, Xiaoming Gao, and Tu Tan

Not Accessible

Your library or personal account may give you access

Abstract

A near-infrared (NIR) laser heterodyne radiometer (LHR) using a 1603 nm distributed feedback (DFB) laser, associated with an erbium-doped fiber amplifier (EDFA), used as a local oscillator (LO) was developed. The EDFA was customized for automatic power control to amplify and stabilize the LO DFB laser power, which allowed to reduce baseline fluctuation and thus make the processed atmospheric transmission spectrum with higher precision. The operation of the EDFA-assisted LHR with a shot-noise-dominated performance was analyzed and experimentally achieved by optimizing the LO power. The performance of the developed LHR was evaluated and verified by measuring an atmospheric CO2 absorption spectrum, and the atmospheric CO2 column abundances were then retrieved based on the optimal estimation method (OEM). The results were in good agreement with the Greenhouse Gas Observation Satellite (GOSAT) data. The EDFA-assisted LHR firstly reported in this Letter has a potential to further improve the measurement precision of atmospheric greenhouse gases using ground-based LHR remote sensing.

© 2023 Optica Publishing Group

Full Article  |  PDF Article
More Like This
Transportable mid-infrared laser heterodyne radiometer operating in the shot-noise dominated regime

Fengjiao Shen, Gaoxuan Wang, Jingjing Wang, Tu Tan, Guishi Wang, Pascal Jeseck, Yao-Veng Te, Xiaoming Gao, and Weidong Chen
Opt. Lett. 46(13) 3171-3174 (2021)

Optical amplification enables a huge sensitivity improvement to laser heterodyne radiometers for high-resolution measurements of atmospheric gases

Hao Deng, Renshi Li, Hao Liu, Yabai He, Chenguang Yang, Xiang Li, Zhenyu Xu, and Ruifeng Kan
Opt. Lett. 47(17) 4335-4338 (2022)

High-resolution oxygen-corrected laser heterodyne radiometer (LHR) for stratospheric and tropospheric wind field detection

Jun Li, Zhengyue Xue, Fengjiao Shen, Guishi Wang, Kun Liu, Weidong Chen, Xiaoming Gao, and Tu Tan
Opt. Express 31(5) 7850-7862 (2023)

View More...

Data availability

Data underlying the results presented in this paper are not publicly available at this time but may be obtained from the authors upon reasonable request.

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (7)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (4)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters
Select Topics Cancel
Top
       
© Copyright 2024 | Optica Publishing Group. All rights reserved, including rights for text and data mining and training of artificial technologies or similar technologies.
Privacy | Terms of Use