Dynamic nonlinear effect on lasing in random media

Hui Cao; Alexey Yamilov; Bo Liu; Jun-Ying Xu; Yong Ling; Eric Seelig; Robert P. H. Chang

doi:10.1117/12.559047

2 August 2004 Dynamic nonlinear effect on lasing in random media

Hui Cao, Alexey Yamilov, Bo Liu, Jun-Ying Xu, Yong Ling, Eric Seelig, Robert P. H. Chang

Proceedings Volume 5508, Complex Mediums V: Light and Complexity; (2004) https://doi.org/10.1117/12.559047
Event: Optical Science and Technology, the SPIE 49th Annual Meeting, 2004, Denver, Colorado, United States

Abstract

We review our recent work on lasing in active random media. Light scattering, which had been regarded detrimental to lasing action for a long time, actually provided coherent feedback for lasing. We also trapped laser light in micrometer-sized random media. The trapping was caused by disorder-induced scattering and inference. This nontraditional way of light confinement has important application to microlasers. The threshold of random laser can be reduced by incorporating some degree of order into an active random medium. Our calculation result shows that by optimizing the degree of order one can dramatically reduce the threshold of random laser to the values comparable to those of photonic bandgap defect lasers.

Citation Download Citation

Hui Cao, Alexey Yamilov, Bo Liu, Jun-Ying Xu, Yong Ling, Eric Seelig, and Robert P. H. Chang "Dynamic nonlinear effect on lasing in random media", Proc. SPIE 5508, Complex Mediums V: Light and Complexity, (2 August 2004); https://doi.org/10.1117/12.559047

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