Non-Gaussian Statistics of Superradiant Radiation from Saturated Xenon 3.5μm Laser Amplifier
The intense stimulated emission, so-called superradiant radiation, can easily be observed in the case of a high gain laser amplifier such as the Xenon 3.5μm transition. The small signal gain of the 3.5μm transitions (5d3 3 − 6p22) is of the order of 4 db/cm and is one of the highest gains among known gas lasers, The intensity of amplified spontaneous emission can be comparable to that of ordinary cw gas laser. There are essential differences between the superradiant radiation and cw gas laser radiation; the spectral line-width of superradiant radiation is much broader than that of a cw laser. The center frequency of the superradiant radiation is more stable than in the case of usual cw laser, because no optical resonator is involved and the center frequency is determined by the energy levels of excited atoms[2,3].
KeywordsIntensity Fluctuation Yttrium Iron Small Signal Gain Electrical Engineer Department Laser Amplifier
Unable to display preview. Download preview PDF.
- 2.H. Gamo and S. S. Chuang, Study of Superradiant Source for Path-Monitoring References in Fourier Spectroscopy, Final Report AFCRL-71-0612, August 15, 1971.Google Scholar
- 3.S. S. Chuang, Infrared Isolator using Yttrium Iron Garnet and Xenon Unilateral Superradiant Radiation, Ph.D. Dissertation, Electrical Engineering Department, University of Rochester, September 1970.Google Scholar
- 4.H. Gamo and T. J. Walter, Investigation of Operational Possibility of Laser Radiation in Partial Coherence Region, AFCRL-68-0354, June 28, 1968; AD678554.Google Scholar
- 5.Thomas J. Walter, Instrumentation for Higher Order Statistics of Radiation and Experimental Study of Superradiant Radiation, Ph.D. Dissertation, Electrical Engineering Department, University of Rochester, August 1968.Google Scholar
- 7.F. Horrigan, Xenon Laser Research, AFAL-TR-65-221, February 1966.Google Scholar
- 8.H. R. Schlossberg and A. Javan, Appl. Phys. Letters 11, 1242–1244 (1966).Google Scholar
- 10.S. Asami, T. Tako and H. Gamo, Pressure Effect in a Xenon 3.5μm Gas Laser, Paper I-2, 1970 International Quantum Electronic Conference, Kyoto, Japan, September 9, 1970.Google Scholar
- 12.H. Gamo and S. S. Chuang, Infrared Isolator Using Yttrium Iron Garnet, Scientific Report AFOSR 70-1956TR, June 30, 1970.Google Scholar
- 17.N. H. Dieter and H. Weaver, Sky and Telescope 31, No. 3, 2-6 (1966).Google Scholar
- 19.Guy Guelachvili and Jean-Pierre Maillard, Proceedings of Aspen International Conference on Fourier Spectroscopy, 151–160 Special Reports, No. 114, AFCRL-71-0019, January 1971.Google Scholar