Skip to main content
Log in

Portable fiber-coupled diode-laser-based sensor for multiple trace gas detection

  • Regular paper
  • Published:
Applied Physics B Aims and scope Submit manuscript

Abstract.

Tunable narrowband mid-infrared radiation from 3.25 to 4.4 μm is generated by a compact fiber-coupled, difference-frequency-based spectrosopic source. A 20-mW external cavity diode laser (with a tuning range from 814 to 870 nm) and a 50-mW distributed-Bragg-reflector diode-laser-seeded ytterbium-doped fiber amplifier operating at 1083 nm are difference-frequency mixed in a multi-grating, temperature-controlled periodically poled LiNbO3 crystal. A conversion efficiency of 0.44 mW/(W2 cm) (corresponding to a power of ≈3 μW at 3.3 μm) represents the highest conversion efficiency reported for a portable device. Performance characteristics of such a sensor and its application to spectroscopic detection of CO2, N2O, H2CO, HCl, NO2, and CH4 will be reported in this work.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

Author information

Authors and Affiliations

Authors

Additional information

Received: 14 May / Revised version: 24 June 1999 / Published online: 30 September 1999

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Lancaster, D., Richter, D. & Tittel, F. Portable fiber-coupled diode-laser-based sensor for multiple trace gas detection. Appl Phys B 69, 459–465 (1999). https://doi.org/10.1007/s003400050835

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s003400050835

Navigation