固体レーザー励起用高機能半導体レーザーの開発 [in Japanese] Development of High-Performance Laser Diode for Pumping Solid-State Laser [in Japanese]
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The spectral bandwidth of a broad-area laser diode is effectively suppressed by use of an off-axis external-cavity technique. The external cavity consisted of a rod lens, a cylindrical lens and a volume Bragg grating. The laser beam has 5.8-fold improvement in spectral bandwidth and its peak power versus wavelength is effectively enhanced. On the basis of this technique, we focus the beam of the high-power laser diode to effectively end pump a solid-state laser.
rle 34(9), 633-635, 2006-09-15
The Laser Society of Japan