Abstract

Planar waveguide structures used for the devices such as solid state lasers, solid state amplifiers, and nonlinear wavelength converters provide many attractive features for these devices. High intensity operation thanks to confinement of light in a thin waveguide makes the device be compact and operate in efficient. In addition, large planar surface for heat reduction leads to a low thermal resistance of the device, and consequently, make it operate in high-power. Moreover, simple structure of planar waveguide device allows usage of wafer-processing for mass production, and consequently, makes the device cost very low. Taking these attractive features into account, we have been developing planar waveguide lasers and amplifiers for a wide variety of applications, such as light sources of laser TV’s [1] and projectors, amplifiers in optical inter-orbit communication transmitters [2], and eye-safe coherent light sources of Doppler LIDAR’s [3]. The lasers and amplifiers that we are developing are as follows.

© 2011 Optical Society of America

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