Abstract

In this Letter, a new method is proposed to further improve the detection sensitivity of the gas sensor based on off-axis integrated cavity spectroscopy (OA-ICOS) using a distributed feedback laser operating in the near-infrared at 1653 nm that relies on implementation of wavelength modulation and radio frequency (RF) white noise perturbation to diode laser current. More than sixfold improvement in detection limit is achieved for an RF noised wavelength-modulated OA-ICOS compared to the unperturbed conventional OA-ICOS approach.

© 2019 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Enhancing off-axis integrated cavity output spectroscopy (OA-ICOS) with radio frequency white noise for gas sensing

Jingjing Wang, Xing Tian, Yang Dong, Gongdong Zhu, Jiajin Chen, Tu Tan, Kun Liu, Weidong Chen, and Xiaoming Gao
Opt. Express 27(21) 30517-30529 (2019)

Near-infrared acetylene sensor system using off-axis integrated-cavity output spectroscopy and two measurement schemes

Kaiyuan Zheng, Chuantao Zheng, Qixin He, Dan Yao, Lien Hu, Yu Zhang, Yiding Wang, and Frank K. Tittel
Opt. Express 26(20) 26205-26216 (2018)

Experimental-based comparison between off-axis integrated cavity output spectroscopy and multipass-assisted wavelength modulation spectroscopy at 7.7 µm

Faisal Nadeem, Julien Mandon, Simona M. Cristescu, Amir Khodabakhsh, and Frans J. M. Harren
OSA Continuum 2(9) 2667-2682 (2019)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

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

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 OSA member, or as an authorized user of your institution.

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

Figures (4)

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

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

Tables (2)

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

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

Metrics

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

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