Abstract

We report on a new laser feedback mechanism that uses speckle-pattern phenomena to create highly dispersive feedback. This speckle mirror is capable of creating laser emission as narrow as that from laser cavities using a number of dispersive elements such as gratings and prisms. Contributions from the peaks of intensity of the speckle patterns and a limited pumping-beam diameter are the basic conditions for the observation of this effect.

© 1997 Optical Society of America

External-feedback effects in high-gain scattering media

Paulo C. de Oliveira, John A. McGreevy, and N. M. Lawandy
Opt. Lett. 22(12) 895-897 (1997)

Ultrabroadband chirped mirrors for femtosecond lasers

E. J. Mayer, J. Möbius, A. Euteneuer, W. W. Rühle, and R. Szipőcs
Opt. Lett. 22(8) 528-530 (1997)

Spectral measurements of the emission from highly scattering gain media

G. Beckering, S. J. Zilker, and D. Haarer
Opt. Lett. 22(18) 1427-1429 (1997)

Theory of laser action in scattering gain media

R. M. Balachandran, N. M. Lawandy, and J. A. Moon
Opt. Lett. 22(5) 319-321 (1997)

Diffusive media characterization with laser speckle

Charles A. Thompson, Kevin J. Webb, and Andrew M. Weiner
Appl. Opt. 36(16) 3726-3734 (1997)