CREOL, The College of Optics and Photonics, University of Central Florida, Orlando, Florida 32816, USA.
Opt Lett. 2012 Sep 1;37(17):3480-2. doi: 10.1364/OL.37.003480.
We report a novel quantum dot based laser design where a stable high-Q master laser is used to injection lock a passively mode-locked monolithic colliding pulse slave laser. Coupling between the crossed orthogonal laser cavities is achieved through a common monolithically integrated saturable absorber, which results in the locking and hence reduction of the timing jitter as well as the long-term frequency drift of the slave laser. A stable 30 GHz optical pulse train is generated with more than 10 dB reduction in the RF noise level at 20 MHz offset and close to 3 times reduction in the 10 dB average optical linewidth of the slave laser.
我们报告了一种新型的基于量子点的激光设计，其中一个稳定的高 Q 值主激光器被用来对一个被动锁模的单片碰撞脉冲从激光器进行注入锁定。通过一个共同的单片集成可饱和吸收体实现了正交激光腔之间的耦合，这导致了锁定，从而减少了从激光器的定时抖动以及长期频率漂移。产生了一个稳定的 30GHz 光脉冲串，在 20MHz 偏移处的 RF 噪声水平降低了 10dB 以上，从激光器的 10dB 平均光线宽降低了近 3 倍。
