Abstract
A general method for Q-switching lasers, by inducing changes in the reflectivity of a multilayered mirror, is discussed, 1 the concept being illustrated in Figure 1. Here, L1 is an external gainpumping laser, while L2 (emitting at λ2) is a tunable short-pulse laser which is used to control the reflectivity of one of the cavity mirrors, labeled M1 in the figure. M1 is so designed that, under normal operation, the constructive interference condition is not satisfied at the laser cavity resonance wavelength λ.
© 1992 Optical Society of America
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