CW DFB RT diode laser based sensor for trace-gas detection of ethane using novel compact multipass gas absorption cell

Mohammad Jahjah; Rafal Lewicki; Frank K. Tittel; Karol Krzempek; Przemyslaw Stefanski; Stephen So; David Thomazy

doi:10.1117/12.2004528

4 February 2013 CW DFB RT diode laser based sensor for trace-gas detection of ethane using novel compact multipass gas absorption cell

Mohammad Jahjah, Rafal Lewicki, Frank K. Tittel, Karol Krzempek, Przemyslaw Stefanski, Stephen So, David Thomazy

Author Affiliations +

Proceedings Volume 8631, Quantum Sensing and Nanophotonic Devices X; 86312G (2013) https://doi.org/10.1117/12.2004528
Event: SPIE OPTO, 2013, San Francisco, California, United States

Abstract

The development of a continuous wave (CW), thermoelectrically cooled (TEC), distributed feedback (DFB) laser diode based spectroscopic trace-gas sensor for ultra sensitive and selective ethane (C₂H₆) concentration measurements is reported. The sensor platform used tunable laser diode absorption spectroscopy (TDLAS) and wavelength modulation spectroscopy (WMS) as the detection technique. TDLAS was performed with an ultra-compact 57.6 m effective optical path length innovative spherical multipass cell capable of 459 passes between two mirrors separated by 12.5 cm. For an interference free C₂H₆ absorption line located at 2976.8 cm_-1 a 1σ minimum detection limit of 130 pptv with a 1 second lock-in amplifier time constant was achieved.

Citation Download Citation

Mohammad Jahjah, Rafal Lewicki, Frank K. Tittel, Karol Krzempek, Przemyslaw Stefanski, Stephen So, and David Thomazy "CW DFB RT diode laser based sensor for trace-gas detection of ethane using novel compact multipass gas absorption cell", Proc. SPIE 8631, Quantum Sensing and Nanophotonic Devices X, 86312G (4 February 2013); https://doi.org/10.1117/12.2004528

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available