Narrow-Bandwidth High-Brightness External-Cavity Laser Diode Bar
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概要
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The spectral bandwidth and beam divergence of a high-power laser diode bar were simultaneously suppressed with an external-cavity configuration consisting of a micro-cylindrical lens and an off-axis volume Bragg grating. We reduced the bandwidth from 1.7 to 0.32 nm and the divergence angle from 7.5 to 2.7° under operation at a peak current of 55 A. The external-cavity laser diode bar achieved a peak power output of 36.6 W, or as much as 80% of the power radiated by a free-running laser diode bar without an external cavity.
- Japan Society of Applied Physicsの論文
- 2007-03-25
著者
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Kan Hirofumi
Central Research Institute Hamamatsu Photonics K. K.
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Zheng Yujin
Central Research Laboratory Hamamatsu Photonics K.k.
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