Proctor Joshua L, Kutz J Nathan
Department of Applied Mathematics, University of Washington, Seattle, Washington 98195-2420, USA.
Opt Lett. 2005 Aug 1;30(15):2013-5. doi: 10.1364/ol.30.002013.
A novel mode-locking technique is presented in which the intensity-dependent spatial coupling dynamics of a waveguide array is used to achieve temporal mode-locking in a passive optical fiber laser. By use of the discrete, nearest-neighbor spatial coupling of the waveguide array, low-intensity light can be transferred to the neighboring waveguides and ejected (attenuated) from the laser cavity. In contrast, higher-intensity light is self-focused in the waveguide and remains largely unaffected. Numerical studies of this pulse shaping mechanism (intensity discrimination) show that using current waveguide arrays and standard optical fiber technology produces stable and robust mode-locked soliton-like pulses.
本文提出了一种新型锁模技术，该技术利用波导阵列的强度依赖型空间耦合动力学在无源光纤激光器中实现时间锁模。通过利用波导阵列的离散、近邻空间耦合，低强度光可以转移到相邻波导并从激光腔中射出（衰减）。相比之下，较高强度的光在波导中自聚焦，基本不受影响。对这种脉冲整形机制（强度辨别）的数值研究表明，使用当前的波导阵列和标准光纤技术可产生稳定且强健的类锁模孤子脉冲。
