Mode-locked diode laser with resonant ring amplifier
Mode-locked diode laser with resonant ring amplifier
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带谐振环放大器的锁模二极管激光器
DOI：
10.1117/12.2307220
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发表时间：
2018
期刊：
影响因子：
--
通讯作者：
Martin R. Hofmann
中科院分区：
文献类型：
--
作者：
Mohammad Ali Alloush;Rouven H. Pilny;Carsten Brenner;Thomas Prziwarka;Andreas Klehr;Andrea Knigge;Günther Tränkle;Martin R. Hofmann
提出了一种以超短脉冲为种子的环形半导体放大器系统。基于混合锁模方案，建立了一种用于产生超短脉冲的外腔半导体激光器结构。单片多段二极管激光器被用作工作振荡器中的光源。它的优点是增益和吸收体集成在一个芯片上。振荡器工作在206MHz的基本重复率，并可以在这个频率的各种谐波驱动。产生的脉冲被注入锥形放大器（TA），该放大器由用于耦合的脊形波导部分（RWS）和用于放大的锥形部分（TS）组成。放大的脉冲在放大之后朝向TA RWS耦合回，形成环形谐振器设置。通过匹配振荡器和环形谐振腔的腔长，我们可以获得附加放大的脉冲。所选TA的发射光谱集中在振荡器的波长范围内的850nm附近。利用光谱分析仪观察了不同抽运参数下的脉冲光谱。此外，我们通过用自相关器监测输出信号来表征系统的最佳播种参数。我们发现，当放大器以412 MHz的二次谐波脉冲作为种子时，可以实现最佳性能。当阻断播种脉冲时，放大器以连续波（CW）方式操作。通过比较CW和附加放大脉冲的光谱，我们得出结论，该系统在脉冲操作中也与CW背景一起操作。然而，从光谱的比较，我们估计，放大的脉冲功率约为120mW的种子功率为1：1mW。因此，环形放大器提供比单通放大器高得多的放大。在未来的工作中，CW背景必须被抑制，例如，通过同步调制进入放大器脊形波导部分的电流。
We present a ring semiconductor amplifier system which is seeded by ultrashort pulses for additive amplification. An external cavity diode laser configuration is built to generate the ultrashort pulses based on a hybrid modelocking scheme. A monolithic multi-segment diode laser is utilized as a light source in the operating oscillator. It has the advantage that the gain and absorber are integrated on one chip. The oscillator operates at a fundamental repetition-rate of 206MHz and can be driven on various harmonics of this frequency. The generated pulses are injected into a tapered amplifier (TA) which consists of a ridge waveguide section (RWS) for coupling and a tapered section (TS) for amplification. The amplified pulses are coupled back after amplification towards the TAs RWS forming a ring resonator setup. By matching the cavity lengths of the oscillator and ring resonator, we can obtain additively amplified pulses. The emission spectrum of the chosen TA is centered around 850nm which is in the wavelength range of the oscillator. The spectrum of the additively amplified pulses is observed for different pumping parameters of the TA using an optical spectrum analyzer. Additionally, we characterized the system for the best seeding parameters by monitoring the output signal with an autocorrelator. We figured out that the best performance is achieved when the amplifier is seeded by pulses at the second harmonic of 412 MHz. When blocking the seeding pulses the amplifier operates in continuous wave (CW) regime. By comparing the obtained spectra for CW and additively amplified pulses, we conclude that the system operates with a CW background also in pulsed operation. However, from the comparison of the spectra, we estimate that the amplified pulsed power is about 120mW for a seed power of 1:1mW. Thus, the ring amplifier provides a significantly higher amplification than a single pass amplifier. In future work the CW background has to be suppressed, e.g. by synchronous modulation of the current into the amplifiers ridge waveguide section.
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影响因子：
4
作者：
J. Walpole;E. Kintzer;S. Chinn;Christine A. Wang;L. Missaggia
通讯作者：
J. Walpole;E. Kintzer;S. Chinn;Christine A. Wang;L. Missaggia
来自色散优化锁模半导体激光器的高峰值功率脉冲
DOI：
--
发表时间：
2013
期刊：
影响因子：
--
作者：
J. Balzer;T. Schlauch;A. Klehr;G. Erbert;G. Trankle;M. Hofmann
通讯作者：
M. Hofmann
被动和主动锁模半导体激光器的啁啾
DOI：
--
发表时间：
1995
期刊：
影响因子：
--
作者：
M. Schell;J. Yu;M. Tsuchiya;T. Kamiya
通讯作者：
T. Kamiya
使用 GaInN 主振荡器功率放大器生成蓝紫色波长的 2.2 nJ 皮秒光脉冲
DOI：
--
发表时间：
2015
期刊：
影响因子：
--
作者：
R. Koda;Y. Takiguchi;S. Kono;Hideki Watanabe;Y. Hanzawa;H. Nakajima;M. Shiozaki;N. Sugawara;Masaru Kuramoto;H. Narui
通讯作者：
H. Narui
主振荡器功率放大器的锁模操作
影响因子：
2.6
作者：
A. Mar;R. Helkey;J. Bowers;D. Mehuys;D. Welch
通讯作者：
D. Welch