Enhanced excess noise in laser cavities with tilted mirrors

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Enhanced excess noise in laser cavities with tilted mirrors
Stefano Longhi

Optics Letters, Vol. 25, Issue 11, pp. 811-813

0 N; d; h6 W: hKeywords (OCIS):
(140.3410) Lasers and laser optics : Laser resonators
(140.4780) Lasers and laser optics : Optical resonators
) ~+ s5 |- \1 U* M. F' j- z(270.2500) Quantum optics : Fluctuations, relaxations, and noise


& O3 y' z2 D' Q- {4 d0 \5 d2 EAbstract
Enhancement of the transverse excess-noise factor is theoretically predicted in optical laser cavities with tilted end mirrors and nonuniform transverse loss. In particular, it is shown that in a loss-guided laser close to the plane--plane geometric instability boundary the excess-noise factor that is induced by mirror tilting may largely exceed that predicted for the aligned cavity. This excess noise is related to beam walk-off induced by mirror tilting, which makes possible transient amplification of noise in the transverse plane.