C. Mourikis, Alexander Sahm, P. Hildenstein, K. Paschke, Guenther Traenkle
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引用次数: 0
摘要
我们展示了一个尺寸为 76×43×15m m 3 的激光模块，据我们所知，该模块首次在如此紧凑的设备中实现了相干光束组合，它使用了两个锥形放大器，由分布式布拉格反射脊波导激光二极管播种，工作波长为 761 nm，采用单一纵向模式。产生的组合光功率可达 5 W 连续波，梳理效率高达 85%。系统的相位由其中一个锥形放大器的脊波导部分的电流控制。相位稳定过程采用反向爬坡算法和 ATmega328P 微控制器自动完成。
Miniaturizing a coherent beam combining system into a compact laser diode module.
We present a laser module with dimensions of 76×43×15m m 3 that for the first time to our knowledge realizes a coherent beam combination in such a compact device, using two tapered amplifiers seeded by a distributed Bragg reflector ridge waveguide laser diode operating at 761 nm in a single longitudinal mode. The generated combined optical power is up to 5 W continuous wave with a combing efficiency of 85%. The phase of the system is controlled by the current in the ridge waveguide section of one of the tapered amplifiers. The phase-stabilization process is automated using a reverse hill-climbing algorithm and an ATmega328P microcontroller.
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