Taming random lasers through active spatial control of the pump

Details Taming random lasers through active spatial control of the pump Taming random lasers through active spatial control of the pump

2012-02-20

arxiv.org/abs/1202.4404v1

Physics

Optics

5 pages, 4 figures, submitted to PRL 3 Ancillary files : 1 table + 2 movies

Scientific paper

Active control of the pump spatial profile is proposed to exercise control over random laser emission. We demonstrate numerically the selection of any desired lasing mode from the emission spectrum. An iterative optimization method is employed, first in the regime of strong scattering where modes are spatially localized and can be easily selected using local pumping. Remarkably, this method works efficiently even in the weakly scattering regime, where strong spatial overlap of the modes precludes spatial selectivity. A complex optimized pump profile is found, which selects the desired lasing mode at the expense of others, thus demonstrating the potential of pump shaping for robust and controllable singlemode operation of a random laser.

Affiliated with

Also associated with

No associations

Rating

Taming random lasers through active spatial control of the pump does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Taming random lasers through active spatial control of the pump, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Taming random lasers through active spatial control of the pump will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-565611