Quaternary Lasers for Guided Wave Optical Communications

这项研究计划集中在两个领域，这将有助于高性能光纤通信系统的发展。第一个涉及能够稳定、单波长工作的半导体激光器，第二个涉及波导中的非线性耦合。在激光问题方面，将对各种已知的模式稳定方案进行比较，并对新技术进行实验研究。将考察各种模式稳定激光器的预期性能，并探索充分利用其潜力的可能方法。还将研究用于脉冲整形和来自两个或更多激光器的功率合成的耦合波导。研究内容包括多量子阱(MQW)结构的非线性折射和吸收特性以及MQW激光器的光谱行为；前者可能用于导波光学，后者可能用作可调谐光源。

This program of research focuses on two areas which will help the development of high performance optical fiber communication systems. The first deals with semiconductor lasers capable of stable, single wavelength operation and the second is concerned with nonlinear coupling in waveguides. In the laser problem area, a comparison of the various known schemes for mode stabilization will be made along with the experimental study of new techniques. The expected performance of various mode stabilized lasers will be examined and possible ways to fully utilize their potential will be explored. Research will also be conducted on coupled waveguides for pulse shaping and for power combining from two or more lasers. Included in the study are the nonlinear refractive and absorptive properties of multiple quantum well (MQW) structures and the spectral behavior of MQW lasers; the former for possible use in guided-wave optics and the latter for possible use as a tunable source.