Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Development of an automated diode-laser-based multicomponent gas sensor.

D Richter1, D G Lancaster, F K Tittel

  • 1Rice Quantum Institute, Rice University, Houston, Texas 77251-1892, USA.

Applied Optics
|September 7, 2001
PubMed
Summary

A new portable fiber-coupled sensor effectively detects trace gases like carbon dioxide (CO2) and methane (CH4). This advanced sensor demonstrates high spectral resolution and autonomous long-term gas monitoring capabilities.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Visible laser emission from a praseodymium-doped fluorozirconate guided-wave chip.

Optics letters·2017
Same author

Holmium-doped 2.1 μm waveguide chip laser with an output power > 1 W.

Optics express·2015
Same author

Widely tunable short-infrared thulium and holmium doped fluorozirconate waveguide chip lasers.

Optics express·2014
Same author

Versatile large-mode-area femtosecond laser-written Tm:ZBLAN glass chip lasers.

Optics express·2012
Same author

2.1 μm waveguide laser fabricated by femtosecond laser direct-writing in Ho3+, Tm3+:ZBLAN glass.

Optics letters·2012
Same author

Fifty percent internal slope efficiency femtosecond direct-written Tm³⁺:ZBLAN waveguide laser.

Optics letters·2011

Area of Science:

  • Spectroscopy
  • Laser Technology
  • Environmental Monitoring

Background:

  • Trace gas detection is crucial for environmental and industrial applications.
  • Existing sensors may lack portability, high resolution, or long-term autonomous capabilities.

Purpose of the Study:

  • To report the implementation and application of a portable fiber-coupled trace-gas sensor.
  • To demonstrate the sensor's capability for detecting multiple trace gases (CO2, CH4, H2CO).

Main Methods:

  • Utilized a continuous-wave fiber-amplified near-infrared diode laser and an external cavity diode laser.
  • Employed frequency conversion in a periodically poled lithium niobate crystal to the mid-IR region (3.3-4.4 micrometers).
  • Achieved high spectral resolution (40 MHz) using automated wavelength tuning and stepper motor-controlled phase matching.
Keywords:
NASA Discipline Environmental HealthNon-NASA Center

Related Experiment Videos

Main Results:

  • Demonstrated a continuous absorption spectrum for methane (CH4) and formaldehyde (H2CO) from 3.37 to 3.10 micrometers.
  • Showcased autonomous, long-term detection of ambient carbon dioxide (CO2) and methane (CH4) over 3- and 7-day periods.
  • Verified the sensor's spectral performance and stability for trace gas analysis.

Conclusions:

  • The developed portable sensor offers a robust platform for trace gas detection.
  • The sensor exhibits excellent spectral resolution and autonomous monitoring capabilities.
  • This technology has significant potential for environmental monitoring and industrial process control.