论文标题
高度呼尾的布拉格光栅用于集成二氧化硅光谱仪
Highly-Chirped Bragg Gratings for Integrated Silica Spectrometers
论文作者
论文摘要
在平面二氧化硅波导装置中，燃烧的thed鼠光栅用于为光谱仪创建一个集成的衍射元件。光栅衍射从波导中的光，并以类似于散装衍射光谱仪的方式创建依赖波长的焦点。外部成像系统用于分析光，后来的设备迭代计划，以整合检测器以制造完全集成的光谱仪。用光栅周期射击速率超过100nm/mm，可实现5.5mm的焦距。昏迷畸变的校正导致占地面积为20mm x 10mm的设备，峰值FWHM分辨率为1.8nm，典型的FWHM分辨率为2.6nm，并以1550nm为中心的160Nm带宽工作。
A blazed chirped Bragg grating in a planar silica waveguide device was used to create an integrated diffractive element for a spectrometer. The grating diffracts light from a waveguide and creates a wavelength dependent focus in a manner similar to a bulk diffraction grating spectrometer. An external imaging system is used to analyse the light, later device iterations plan to integrate detectors to make a fully integrated spectrometer. Devices were fabricated with grating period chirp rates in excess of 100nm/mm, achieving a focal length of 5.5mm. Correction of coma aberrations resulted in a device with a footprint of 20mm x 10mm, a peak FWHM resolution of 1.8nm, a typical FWHM resolution of 2.6nm and operating with a 160nm bandwidth centered at 1550nm.
