TITLE

Gain recovery in an electric oxygen-iodine laser

AUTHOR(S)
Zimmerman, J. W.; Benavides, G. F.; Palla, A. D.; Woodard, B. S.; Carroll, D. L.; Verdeyen, J. T.; Solomon, W. C.
PUB. DATE
January 2009
SOURCE
Applied Physics Letters;1/12/2009, Vol. 94 Issue 2, pN.PAG
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Recent investigations of an electric oxygen-iodine laser system have shown that computational modeling overpredicts the experimentally measured power output for similar gain conditions. This discrepancy is potentially due to an unknown reaction that competes with the forward pumping of I(2P1/2) by O2(a 1Δ). Measurements of gain recovery downstream of an operating laser cavity were performed. Modeling of this experiment shows that reducing the forward pumping rate by an effective factor of approximately 4 to simulate a competing mechanism results in the computational modeling matching the experimental gain recovery measurements, and in improved agreement between the measured and modeled laser power extraction.
ACCESSION #
36258458

 

Related Articles

  • High-pressure subsonic mode operation of chemical oxygen-iodine laser. Wani, F.; Endo, M.; Fujioka, T. // Applied Physics B: Lasers & Optics;2000, Vol. 70 Issue 2, p225 

    Abstract, A new regime of chemical oxygen-iodine laser (COIL), high-pressure subsonic mode operation, was demonstrated using a jet-type singlet oxygen generator (SOG). The laser output power of 342W with chemical efficiency of 20.9% was obtained at the Cl[sub 2] flow rate of 18 mmol/s and the...

  • High-power stable chemical oxygen iodine laser. Shimizu, K.; Sawano, T.; Tokuda, T.; Yoshida, S.; Tanaka, I. // Journal of Applied Physics;1/1/1991, Vol. 69 Issue 1, p79 

    Presents a study which developed a high-power chemical oxygen iodine laser system for industrial applications. Description of the laser system; Comparison of laser power to the effective oxygen power and the volume flow rate measured in the laser head; Correlation between saturation effect on...

  • High-power 888-nm-pumped Nd:YVO4 1342-nm oscillator operating in the TEM00 mode. Lenhardt, F.; Nittmann, M.; Bauer, T.; Bartschke, J.; L'huillier, J. A. // Applied Physics B: Lasers & Optics;Sep2009, Vol. 96 Issue 4, p803 

    We report on a high-power 888-nm-pumped continuous-wave Nd:YVO4 laser at 1342 nm. An output power of 24 W emitted into a diffraction limited beam with an M2 parameter better than <1.1 is demonstrated. At an absorbed pump power of 84 W the optical conversion efficiency is 29%.

  • New singlet oxygen generator for chemical oxygen-iodine lasers. Yoshida, S.; Saito, H.; Fujioka, T.; Yamakoshi, H.; Uchiyama, T. // Applied Physics Letters;11/3/1986, Vol. 49 Issue 18, p1143 

    Experiments have been carried out to investigate a new method for generating O2(1Δ) with long-time operation of an efficient chemical oxygen-iodine laser system in mind. An impinging-jet nozzle was utilized to atomize a H2O2-KOH solution so that the alkaline H2O2/Cl2 reaction might occur in...

  • Efficiency of chemical oxygen-iodine lasers: Theoretical simulation and experiment. Watanabe, K.; Kashiwabara, S.; Fujimoto, R. // Journal of Applied Physics;1/1/1986, Vol. 59 Issue 1, p42 

    Presents a study which examined the efficiency of chemical oxygen-iodine laser oscillators. Evaluation of chemical oxygen-iodine laser performance; Types of efficiencies introduced in the examination; Results and discussion.

  • A 33% efficient chemical oxygen–iodine laser with supersonic mixing of iodine and oxygen. Rybalkin, V.; Katz, A.; Barmashenko, B. D.; Rosenwaks, S. // Applied Physics Letters;6/2/2003, Vol. 82 Issue 22, p3838 

    We report on a highly efficient supersonic chemical oxygen–iodine laser (COIL), with supersonic mixing of iodine and oxygen. Output power exceeding 0.5 kW with chemical efficiency of ∼33% was obtained in a 5-cm gain length for Cl[sub 2] flow rate of 17 mmole/s. A 33% efficiency is...

  • Erratum: ‘‘Long term stability in the operation of a chemical oxygen-iodine laser for industrial use’’ [J. Appl. Phys. 66, 1033 (1989)]. Fujii, Hiroo; Yoshida, Sanichiro; Iizuka, Masachiro; Atsuta, Toshio // Journal of Applied Physics;10/15/1989, Vol. 66 Issue 8, p3964 

    Presents a correction to the study 'Long Term Stability in the Operation of a Chemical Oxygen-Iodine Laser for Industrial Use,' which was published in the 1989 issue of the 'Journal of Applied Physics.'

  • Chemically pumped atomic iodine pulse laser. Endo, M.; Shiroki, K.; Uchiyama, T. // Applied Physics Letters;8/19/1991, Vol. 59 Issue 8, p891 

    Develops pulsed iodine laser driven by a chemical oxygen generator. Demonstration of energy deposition; Extraction of the pulsed laser by high-energy density pulsed pumping; Estimation of the specific energy.

  • Moderate-power cw chemical oxygen-iodine laser capable of long duration operation. Wiswall, C. E.; Bragg, S. L.; Reddy, K. V.; Lilenfeld, H. V.; Kelley, J. D. // Journal of Applied Physics;7/1/1985, Vol. 58 Issue 1, p115 

    Presents a study that described the design and operation of an oxygen-iodine chemical laser. Features of the laser; Analysis of the variation of laser power with run time; Calculation of the power extraction efficiency of the laser.

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics