Development of virtually imaged phased array spectrometer in red band

doi:10.3969/j.issn.1007-5461.2021.06.006

Abstract

Abstract: VIPA spectrometer, based on the strong dispersion capability of the virtually imaged phased array (VIPA), is a new type of high-performance spectral measurement technology, which has the advantages of wide spectral coverage, high time resolution, and high spectral resolution. Based on a quartz VIPA in 60 GHz free spectral region (FSR), a VIPA spectrometer for spectrum measurement in the red light band is developed, and the output spectrum of a 633 nm multi-mode laser is measured. At a time resolution of 100 µs, the output spectrum with a single measurement of 3.1 nm spectral width and 2.0 pm (1.5 GHz) high spectral resolution is obtained. And the continuous operation for 4 h shows that the spectral drift is less than 0.5 pm. The performance of the spectrometer can be further improved by using diffraction grating scanning device, area CCD with shorter exposure speed, and VIPA with larger FSR.

Key words: spectroscopy, spectrometer, virtually imaged phased array, high spectral resolution

CLC Number:

O439

ZHOU Hao , , FANG Bo , , YANG Nana , , ZHAO Weixiong ∗ , WANG Chunhui , , ZHANG Weijun , . Development of virtually imaged phased array spectrometer in red band[J]. Chinese Journal of Quantum Electronics, 2021, 38(6): 788-795.

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