摘要
We demonstrate a novel type of miniature spectrometer based on a Fourier transform spectrometer(FTS)chip with a dense output array and a commercial photodetector(PD)array.The FTS chip has an output array cycle of 20μm and consists of 51 Mach–Zehnder interferometers(MZIs),and the PD array is a commercial linear charged coupled device(CCD).An achromatic triplet lens is used to image the MZI output interferogram onto the CCD with a small aberration.Our experiment result shows that a free spectral range(FSR)from 489 nm to 584 nm and a retrieved spectral resolution of 3.5nm at 532nm are obtained.The achieved properties show that our spectrometer has the potential to outperform the best commercial compact one in terms of most performance indices.
We demonstrate a novel type of miniature spectrometer based on a Fourier transform spectrometer(FTS) chip with a dense output array and a commercial photodetector(PD) array. The FTS chip has an output array cycle of 20 μm and consists of 51 Mach–Zehnder interferometers(MZIs), and the PD array is a commercial linear charged coupled device(CCD). An achromatic triplet lens is used to image the MZI output interferogram onto the CCD with a small aberration. Our experiment result shows that a free spectral range(FSR) from 489 nm to 584 nm and a retrieved spectral resolution of 3.5 nm at 532 nm are obtained. The achieved properties show that our spectrometer has the potential to outperform the best commercial compact one in terms of most performance indices.
作者
Xiao Ma
Jun Zou
Wenhuan Li
Jian-Jun He
马骁;邹俊;李文环;何建军(College of Optical Science and Engineering,Zhejiang University,Hangzhou 310027,China;College of Science,Zhejiang University of Technology,Hangzhou 310023,China;Zhejiang Lightip Electronics Technology Co.,Ltd.,Wenzhou 325000,China)
基金
supported in part by the National Natural Science Foundation of China(Nos.61535010and 61605172)
in part by the Public Project of Zhejiang Province(No.2016C33074)
the research fund from Zhejiang Lightip Electronics Technology Co.,Ltd
