Abstract

An optical parametric oscillator (OPO), pumped by a fiber-amplified diode laser, is combined with off-axis integrated cavity output spectroscopy (OA-ICOS). The cw OPO (power 1.2W, tunability 34μm, 5cm1 mode-hop-free tuning) has a tuning speed of 100THz/s, which is ideal for rapid and sensitive trace gas detection. Combined with OA-ICOS, a detection limit of 50 parts per trillion by volume (1×1012) of ethane (C2H6) in nitrogen was obtained in 0.25s at 2997cm1, corresponding to a noise equivalent absorption sensitivity of 4.8×1011cm1Hz1/2. The system demonstrates real-time measurements of methane and water in exhaled human breath.

© 2010 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Real-time, subsecond, multicomponent breath analysis by Optical Parametric Oscillator based Off-Axis Integrated Cavity Output Spectroscopy

Denis D. Arslanov, Koen Swinkels, Simona M. Cristescu, and Frans J. M. Harren
Opt. Express 19(24) 24078-24089 (2011)

Off-axis integrated cavity output spectroscopy with a mid-infrared interband cascade laser for real-time breath ethane measurements

Krishnan R. Parameswaran, David I. Rosen, Mark G. Allen, Alan M. Ganz, and Terence H. Risby
Appl. Opt. 48(4) B73-B79 (2009)

Parts per trillion sensitivity for ethane in air with an optical parametric oscillator cavity leak-out spectrometer

Golo von Basum, Daniel Halmer, Peter Hering, Manfred Mürtz, Stephan Schiller, Frank Müller, Alexander Popp, and Frank Kühnemann
Opt. Lett. 29(8) 797-799 (2004)

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

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