"Integrated Tunable Laser/Modulators and Receiver/Preamps for Wavelength Division Systems"

wpc2 B V J Z Courier T ？x x x x 6 x @ K x @ QMS最近，提出了几种新的方案来提供相对波长调谐范围远大于可实现的折射率变化的可调谐激光器。这种激光器在远程和数据通信应用的高容量波分网络中是必需的，并且它们可以在光学传感器和存储器以及光谱学应用中使用。加州大学圣巴巴拉分校研究了两种最有希望的结构。波长调谐范围30纳米已被证明。不幸的是，由于赞助公司的政策，目前对这个项目和相关项目的资助已经结束，没有任何续签的前景。这种激光器的问题之一是，如果不同时改变波长，它们很难直接调制。因此，需要将它们与激光腔外单独控制的调制器集成在一起。在UCSB，一种简单且鲁棒的导/反导调制器的研究表明，它是该功能的绝佳候选。同样，这项工作的资金也停止了。该计划的一个目标是将该调制器与可调谐激光结构集成在一起。结果表明，无需额外的处理步骤即可完成此操作。

WPC 2 B V J Z Courier T ? x x x x 6 X @ K X @ QMS JetScript QMSJETSC.PRS x @ h h h h }X @ #| x 2 9222440 Coldren Recently, several novel schemes to provide tunable lasers with relative wavelength tuning ranges much larger than the achievable index change have been proposed. Such lasers are desired in high capacity wavelength division networks for applications in tele and data communications, and they may find use in optical sensors and memories as well as in spectroscopies applications. Two of the most promising structures have been studied at UC Santa Barbara. Wavelength tuning ranges 30 nm have been demonstrated. Unfortunately, current funding for this and related programs has ended without any renewal prospect due to the sponsoring company's policy. One of the problems with such lasers is that they are difficult to directly modulate without simultaneously shifting the wavelength. Thus, it is desirable to integrate them with separately controlled modulator external to the laser cavity. At UCSB work on a simple and robust guide/antiguide modulator has indicated that is an excellent candidate for this function. Again, funding for this work has also ended. One goal of this proposed program would involve integrating this modulator with one of the tunable laser structures. It is shown that this can be accomplished with no extra processing steps.