Amplitude Noise and Timing Jitter Characterization of a High-Power Mode-Locked Integrated External-Cavity Surface Emitting Laser
Amplitude Noise and Timing Jitter Characterization of a High-Power Mode-Locked Integrated External-Cavity Surface Emitting Laser
复制标题
高功率锁模集成外腔表面发射激光器的幅度噪声和定时抖动表征
作者：
M. Mangold;S. Link;A. Klenner;C. Zaugg;M. Golling;B. Tilma;U. Keller
我们提出了高功率锁模集成外腔表面发射激光器 (MIXSEL) 的定时抖动和幅度噪声特性。在MIXSEL中，SESAM的半导体可饱和吸收器被集成到VECSEL的结构中，以启动和稳定被动锁模。与之前的 SESAM 锁模 VECSEL 噪声表征相比，MIXSEL 的首次噪声表征是在更高的平均输出功率下进行的。在自由运行操作中，激光器产生 14.3 ps 脉冲，平均输出功率为 645 mW，脉冲重复率为 2 GHz，RMS 振幅噪声为 0.15% [1 Hz，10 MHz]。我们测得 129 fs [100 Hz，10 MHz] 的 RMS 定时抖动，这是迄今为止自由运行的被动锁模半导体盘激光器的最低值。此外，我们使用压电执行器稳定脉冲重复率来控制腔长度。激光器以 701 mW 的平均输出功率生成 16.7 ps 脉冲，使用反馈环路将重复频率锁相至低噪声电子参考。在主动稳定操作中，RMS 定时抖动降低至小于 70 fs [1 Hz，100 MHz]。在 100 Hz 至 10 MHz 带宽内，我们报告了迄今为止从被动锁模半导体盘激光器测得的最低定时抖动，值为 31 fs。这些结果表明，MIXSEL 技术提供了紧凑的超快激光源，结合了类似于二极管泵浦固态激光器的高功率和低噪声性能，从而实现了世界纪录的光通信速率和低噪声频率梳。
We present a timing jitter and amplitude noise characterization of a high-power mode-locked integrated external-cavity surface emitting laser (MIXSEL). In the MIXSEL, the semiconductor saturable absorber of a SESAM is integrated into the structure of a VECSEL to start and stabilize passive mode-locking. In comparison to previous noise characterization of SESAM-mode-locked VECSELs, this first noise characterization of a MIXSEL is performed at a much higher average output power. In a free-running operation, the laser generates 14.3-ps pulses at an average output power of 645 mW at a 2-GHz pulse repetition rate and an RMS amplitude noise of 0.15% [1 Hz, 10 MHz]. We measured an RMS timing jitter of 129 fs [100 Hz, 10 MHz], which represents the lowest value for a free-running passively mode-locked semiconductor disk laser to date. Additionally, we stabilized the pulse repetition rate with a piezo actuator to control the cavity length. With the laser generating 16.7-ps pulses at an average output power of 701 mW, the repetition frequency was phase-locked to a low-noise electronic reference using a feedback loop. In actively stabilized operation, the RMS timing jitter was reduced to less than 70 fs [1 Hz, 100 MHz]. In the 100-Hz to 10-MHz bandwidth, we report the lowest timing jitter measured from a passively mode-locked semiconductor disk laser to date with a value of 31 fs. These results show that the MIXSEL technology provides compact ultrafast laser sources combining high-power and low-noise performance similar to diode-pumped solid-state lasers, which enable world-record optical communication rates and low-noise frequency combs.
影响因子：
35
作者：
Hillerkuss, D.;Schmogrow, R.;Leuthold, J.
通讯作者：
Leuthold, J.