SBIR Phase I: Wide Bandwidth Optical Network Monitor

这项小型企业创新研究（SBIR）第一阶段项目将研究1.55微米波段逆反射体全息光栅滤波器的制造，该滤波器具有足够的带宽，可以提供1至2纳米范围内的波长监测。这将足以监测波分复用（WDM）光网络的整个通道宽度上的任何信号，解决了外部波长参考的需求，以确保激光不会漂移出其指定的通道。由于尺寸限制或技术限制，目前的替代方案无法集成到电信设备中。第一阶段将重点放在增加当前全息光栅滤波器的带宽和降低输入信号要求与更高的探测器灵敏度。将制作一个原型设计。该技术的预期商业应用包括用于电信和其他实验室应用的WDM发射机和精确波长激光源的网络监视器。此外，滤光片可用于遥感，即人眼安全的激光雷达、仪器仪表和光谱学。

This Small Business Innovation Research (SBIR) Phase I project will investigate the fabrication of volume holographic grating filters for retro-reflection in the 1.55 micron band with sufficient bandwidth to provide wavelength monitoring over a 1 to 2 nm range. This would be sufficient to monitor any signal over the full channel width of a wavelength division multiplexed (WDM) optical network, addressing a need for external wavelength references to insure that the lasers do not drift out of their assigned channels. Current alternatives are not feasible for integration into telecom equipment because of size constraints or technical limitations. Phase I will focus on increasing bandwidth on current holographic grating filters and decreasing input signal requirements with higher detector sensitivity. A prototype design will be made. Anticipated commercial applications of this technology include network monitors for WDM transmitters and accurate wavelength laser sources, both for telecom and other laboratory applications. In addition, filters can be used for remote sensing, i.e., eye-safe LIDAR, instrumentation, and spectroscopy.