Design and characteristics of a tapered amplifier diode system by seeding with continuous-wave and mode-locked external cavity diode laser
Design and characteristics of a tapered amplifier diode system by seeding with continuous-wave and mode-locked external cavity diode laser
复制标题
连续波锁模外腔二极管激光器种子锥形放大器二极管系统的设计和特性
DOI：
10.1117/1.2404925
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发表时间：
2006
影响因子：
1.3
通讯作者：
K. Repasky
中科院分区：
文献类型：
--
作者：
Y. Xiong;Sytil K. Murphy;J. Carlsten;K. Repasky
我们提出了一个简单，稳定，紧凑的锥形放大器（TA）二极管系统的详细设计。该设计考虑了导热性、应变释放和系统对准。方便的三维准直调整使系统易于对准。讨论了连续外腔半导体激光器（CW-ECDL）和锁模外腔半导体激光器（ML-ECDL）的光放大率随注入电流和工作温度的变化关系。在5 mW CW-ECDL种子功率下，TA后获得240 mW，其中115 mW（48%）可以耦合到单模光纤中。在平均ML-ECDL种子功率为0.75 mW的情况下，在TA之后实现了80 mW的平均功率或约11 W的峰值功率（843 MHz重复率和8 ps脉冲宽度），其中39 mW（49%）可以耦合到单模光纤中。在这两种情况下，放大的光保持播种光的光学特性，显示出相同的模式抑制。输出功率空间模式质量的特点是与相机和BeamView软件。输出功率的稳定性也进行了讨论。
We present a detailed design of a simple, stable, and compact tapered amplifier (TA) diode system. Heat conductivity, strain release, and system alignment are taken into consideration for this design. Convenient access to the three-dimensional adjustments for collimation makes the system easy to align. The optical amplification is discussed as a function of injection of current and operating temperature for both a continuous-wave external cavity diode laser (CW-ECDL) and a mode-locked external cavity diode laser (ML-ECDL). With 5-mW CW-ECDL seeding power, 240 mW is achieved after the TA, 115 mW (48%) of which can be coupled into a single-mode fiber. With 0.75-mW average ML-ECDL seeding power, 80-mW average power, or about 11-W peak power (843-MHz repetition rate and 8-ps pulse width), is achieved after the TA, 39 mW (49%) of which can be coupled into a single-mode fiber. In both cases, the amplified light maintains the optical properties of the seeding light, showing the same mode suppression. The output power spatial mode quality is characterized with a camera and BeamView software. Output power stability is also discussed.