Engineering Research Equipment: Optical Fiber Lasers

在光波实验室 技术司内的技术 布朗大学的工程学， 一种新的制造方法， 稀土光纤激光器 开发 这些都很重要， 只是因为它们在放大 电信信号，但 一系列新颖的传感技术 应用. 该技术 涉及一种新型的气雾剂技术 用于运输和合并 光纤的核心 预制稀土元素， 前体具有低蒸气压。 含稀土有机固体 元素溶解在液体中 有机金属化合物 的 将所得溶液雾化， （大约）4微米 直径的液滴对流， 将载气导入 MCVD中的衬底管（修改后 化学气相/沉积）工艺 旧光纤预制棒 捏造 在适当的温度下 这些粒子， 气化反应生成多元 组分氧化物颗粒， 热泳沉积， 随后烧结。 这个过程 代表了一种新技术， 高纯度玻璃的形成， 特别是，对于 使用MCVD工艺的光纤激光器。 PI寻求额外的设备， 帮助描述 这些光纤激光器，并评估 共掺杂对激光增益的影响。

At the Laboratory for Lightwave Technology within the Division of Engineering at Brown University, a new method for the fabrication of rare earth fiber lasers has been developed. These are important not only for their role in amplification of telecommunications signals, but for a host of novel sensing applications. The technique involves a novel aerosol technique for the transport and incorporation into the core of an optical fiber preform rare earth elements whose precursors have low vapor pressures. Organic solids containing rare earth elements are dissolved in liquid organometallic compounds. The resulting solution is nebulized and the (approximately) four micron diameter droplets are convected by means of a carrier gas into a substrate tube in the MCVD (Modified Chemical Vapor /Deposition) process used optical fiber preform fabrication. At an appropriate heat source, these particles then vaporize and react to form multi- component oxide particles that are thermophoretically deposited and subsequently sintered. This process represents a new technique for the formation of high purity glass, in particular, for the cord doping of fiber lasers using the MCVD process. The PI seeks additional equipment to aide in the characterization of these fiber lasers, and to assess the role of co-doping on laser gain.