Abstract

The frequency-doubling nonlinear mirror is a simple nonlinear optical device^[1] which has been used in quite opposite modes of operating in controlling laser operation. In intensity-dependent positive feedback mode it has been used for modelocking^[2] and in negative feedback for extension of the pulse train duration of actively modelocked lasers to more than 1 ms.^[3] Also, application for electro-optic amplitude light modulation has been demonstrated.^[4] Here we show that the device can be used also for power limiter and stabilizer^[5].

© 1992 IQEC