Conventional doubling/mixing scheme uses tight focusing to get better conversion efficiency into the UV or visible. This results in bad beam shape (elliptical, line), short crystal lifetime and the conversion efficiency is not good. We now introduce C-Doubler which effectively solves these problems.
The C-Doubler is constructed
by specially designed lens and collimator systems to overcome the problems caused
by small acceptance angle and large walk-off angle. The fine mechanic systems
are also specifically designed because of very small acceptance angle of the
crystal. The systems guarantee not only high conversion efficiency but also
good output beam quality. The output beam is nearly in TEM00 mode
if the input is in TEM00 mode.
Using C-Doubler designed for doubling 532 nm
® 266 nm, we obtained more than 40% conversion efficiency at about 10MW/cm2
input power density (see Fig. 39). This C-Doubler is an efficient and compact quadrupler
for Q-switched or mode-locked Nd:YAG and Nd:YLF lasers pumped by lamps or laser diodes.
C-Doublers can also be designed and used for frequency-doubling Nd:YAG, Nd:YLF, Cooper Vapor, Argon Ion, Dye, Ti:Sapphire and Alexandrite lasers.
For the best design of your C-Doublers, simply tell us the following parameters of your laser, we'll do all the rest!
Copyright 1999 U-Oplaz
Technologies,
Inc. All rights reserved.
Last Revised: Sep.
20,
1999
Web Page maintained by : Uoplaz@aol.com
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