Signal amplification and control in optical cavities with off-axis feedback

Zambrini, Roberta and Papoff, Francesco (2007) Signal amplification and control in optical cavities with off-axis feedback. Physical Review Letters, 99 (6). ISSN 1079-7114 (https://doi.org/10.1103/PhysRevLett.99.063907)

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Abstract

We consider a large class of optical cavities and gain media with an off-axis external feedback which introduces a two-point nonlocality. This nonlocality moves the lasing threshold and opens large windows of control parameters where weak light spots can be strongly amplified while the background radiation remains very low. Furthermore, transverse phase and group velocities of a signal can be independently tuned and this enables us to steer it nonmechanically, to control its spatial chirping, and to split it into two counterpropagating ones.

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• Item metadata

  Item type:	Article
  ID code:	5103
  Dates:	Date Event 9 August 2007 Published
  Subjects:	Science > Physics > Optics. Light Science > Physics
  Department:	Faculty of Science > Physics
  Depositing user:	Strathprints Administrator
  Date deposited:	23 Jul 2008
  Last modified:	08 Apr 2024 16:16
  URI:	https://strathprints.strath.ac.uk/id/eprint/5103