Performance Characteristics of a Compact Widely Tunable External Cavity Quantum Cascade Laser

• PUSHKARSKY Michael

  Daylight Solutions

• WEIDA Miles

  Daylight Solutions

• DAY Timothy

  Daylight Solutions

• ARNONE David

  Daylight Solutions

• PRITCHETT Russ

  Daylight Solutions

• CAFFEY David

  Daylight Solutions

Abstract

Daylight Solutions is developing broadly tunable, external cavity quantum cascade lasers (EC-QCLs) for gas sensing instrumentation. Recent efforts at Daylight Solutions yielded the world's first miniature room temperature EC-QCLs comprising a 15 mm long optical cavity, miniature grating tuning mechanism and integrated current and temperature controls. The laser operates in the 4.5-10.5μm spectral region with a scanning range up to 100 cm^-1. Spectral resolution is better than 1 cm^-1 and scanning rate is faster than 1 second. In addition to the relative simplicity and ruggedness of the opto-mechanical design, the laser also features low power consumption, does not require precise current and temperature control, and operates at room temperature with convective cooling. The prototype QCL-based acetone sensor has shown a sensitivity of 100 ppb. In parallel, a continuously tunable CW broadly external cavity QCL laser prototype was developed. The CW laser performance was evaluated by recording ammonia spectrum.

Journal

• The Review of Laser Engineering

  The Review of Laser Engineering 36 (2), 80-83, 2008

  The Laser Society of Japan

Keywords

• Laser
• External cavity
• Quantum cascade
• IR source
• Gas sensing

Details

• CRID: 1390001204646941440
• NII Article ID: 10021105273
• NII Book ID: AN00255326
• DOI: 10.2184/lsj.36.80
• COI: 1:CAS:528:DC%2BD1cXkt1Kgur8%3D
• ISSN: 13496603
• ISSN: 03870200
• NDL BIB ID: 9394438
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I9394438
• Web Site: https://www.jstage.jst.go.jp/article/lsj/36/2/36_80/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed