Backscatter absorption gas imaging systems and light sources therefore
Abstract
The location of gases that are not visible to the unaided human eye can be determined using tuned light sources that spectroscopically probe the gases and cameras that can provide images corresponding to the absorption of the gases. The present invention is a light source for a backscatter absorption gas imaging (BAGI) system, and a light source incorporating the light source, that can be used to remotely detect and produce images of "invisible" gases. The inventive light source has a light producing element, an optical amplifier, and an optical parametric oscillator to generate wavelength tunable light in the IR. By using a multi-mode light source and an amplifier that operates using 915 nm pump sources, the power consumption of the light source is reduced to a level that can be operated by batteries for long periods of time. In addition, the light source is tunable over the absorption bands of many hydrocarbons, making it useful for detecting hazardous gases.
- Inventors:
-
- Livermore, CA
- San Ramon, CA
- Oakley, CA
- Campbell, NY
- Issue Date:
- Research Org.:
- Sandia National Lab. (SNL-CA), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 907742
- Patent Number(s):
- 7151787
- Application Number:
- 10/658,906
- Assignee:
- Sandia National Laboratories (Livermore, CA)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01M - TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- DOE Contract Number:
- AC04-94AL85000
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 47 OTHER INSTRUMENTATION
Citation Formats
Kulp, Thomas Jan, Kliner, Dahv A. V., Sommers, Ricky, Goers, Uta-Barbara, and Armstrong, Karla M. Backscatter absorption gas imaging systems and light sources therefore. United States: N. p., 2006.
Web.
Kulp, Thomas Jan, Kliner, Dahv A. V., Sommers, Ricky, Goers, Uta-Barbara, & Armstrong, Karla M. Backscatter absorption gas imaging systems and light sources therefore. United States.
Kulp, Thomas Jan, Kliner, Dahv A. V., Sommers, Ricky, Goers, Uta-Barbara, and Armstrong, Karla M. Tue .
"Backscatter absorption gas imaging systems and light sources therefore". United States. https://www.osti.gov/servlets/purl/907742.
@article{osti_907742,
title = {Backscatter absorption gas imaging systems and light sources therefore},
author = {Kulp, Thomas Jan and Kliner, Dahv A. V. and Sommers, Ricky and Goers, Uta-Barbara and Armstrong, Karla M},
abstractNote = {The location of gases that are not visible to the unaided human eye can be determined using tuned light sources that spectroscopically probe the gases and cameras that can provide images corresponding to the absorption of the gases. The present invention is a light source for a backscatter absorption gas imaging (BAGI) system, and a light source incorporating the light source, that can be used to remotely detect and produce images of "invisible" gases. The inventive light source has a light producing element, an optical amplifier, and an optical parametric oscillator to generate wavelength tunable light in the IR. By using a multi-mode light source and an amplifier that operates using 915 nm pump sources, the power consumption of the light source is reduced to a level that can be operated by batteries for long periods of time. In addition, the light source is tunable over the absorption bands of many hydrocarbons, making it useful for detecting hazardous gases.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2006},
month = {12}
}
Works referenced in this record:
Limitations of signal averaging due to temporal correlation in laser remote-sensing measurements
journal, January 1982
- Menyuk, N.; Killinger, D. K.; Menyuk, C. R.
- Applied Optics, Vol. 21, Issue 18
93% pump depletion, 35-W continuous-wave, singly resonant optical parametric oscillator
journal, January 1996
- Bosenberg, Walter R.; Myers, Lawrence E.; Byer, Robert L.
- Optics Letters, Vol. 21, Issue 17
Real-time monitoring of ethane in human breath using mid-infrared cavity leak-out spectroscopy
journal, June 2001
- Dahnke, H.; Kleine, D.; Hering, P.
- Applied Physics B, Vol. 72, Issue 8
Broadly tunable, mode-hop-tuned cw optical parametric oscillator based on periodically poled lithium niobate
journal, January 2001
- Bisson, Scott E.; Armstrong, Karla M.; Kulp, Thomas J.
- Applied Optics, Vol. 40, Issue 33
Development of a compact gas imaging sensor employing a cw fiber-amp-pumped PPLN OPO
conference, January 2001
- Goers, U. -B.; Armstrong, K.; Sommers, R.
- CLEO 2001. Technical Digest. Summaries of papers presented at the Conference on Lasers and Electro-Optics. Postconference Technical Digest, Technical Digest. Summaries of papers presented at the Conference on Lasers and Electro-Optics. Postconference Technical Digest (IEEE Cat. No.01CH37170)
Backscatter absorption gas imaging: a new technique for gas visualization
journal, January 1993
- McRae, Thomas G.; Kulp, Thomas J.
- Applied Optics, Vol. 32, Issue 21
Development of a pulsed backscatter-absorption gas-imaging system and its application to the visualization of natural gas leaks
journal, January 1998
- Kulp, Thomas J.; Powers, Peter; Kennedy, Randall
- Applied Optics, Vol. 37, Issue 18
High-power continuous-wave mid-infrared radiation generated by difference frequency mixing of diode-laser-seeded fiber amplifiers and its application to dual-beam spectroscopy
journal, January 1999
- Lancaster, D. G.; Richter, D.; Curl, R. F.
- Optics Letters, Vol. 24, Issue 23
Yb Fiber Laser Pumped Mid-IR Source Based on Difference Frequency Generation and Its Application to Ammonia Detection
journal, February 2001
- Matsuoka, Naoya; Yamaguchi, Shigeru; Nanri, Kenzo
- Japanese Journal of Applied Physics, Vol. 40, Issue Part 1, No. 2A
Portable fiber-coupled diode-laser-based sensor for multiple trace gas detection
journal, December 1999
- Lancaster, D. G.; Richter, D.; Tittel, F. K.
- Applied Physics B, Vol. 69, Issue 5-6
Mid-infrared difference-frequency generation source pumped by a 11–15-µm dual-wavelength fiber amplifier for trace-gas detection
journal, January 1998
- Goldberg, L.; Koplow, J.; Lancaster, D. G.
- Optics Letters, Vol. 23, Issue 19
Pulse averaging methods for a laser remote monitoring system using atmospheric backscatter
journal, January 1987
- Milton, Martin J. T.; Woods, Peter T.
- Applied Optics, Vol. 26, Issue 13