Spectral resolution measurement technique for Czerny-Turner spectrometers based on spectral interferometry

Ramiro Contreras Martínez; Jesús Garduño Mejía; Martha Rosete Aguilar; Carlos J. Román Moreno

doi:10.1117/12.2236502

28 August 2016 Spectral resolution measurement technique for Czerny-Turner spectrometers based on spectral interferometry

Ramiro Contreras Martínez, Jesús Garduño Mejía, Martha Rosete Aguilar, Carlos J. Román Moreno

Author Affiliations +

Proceedings Volume 9960, Interferometry XVIII; 996012 (2016) https://doi.org/10.1117/12.2236502
Event: SPIE Optical Engineering + Applications, 2016, San Diego, California, United States

Abstract

We propose the design of a new technique for measuring the spectral resolution of a Czerny-Turner Spectrometer based on spectral interferometry of ultrashort laser pulses. It is well known that ultrashort pulse measurement like SPIDER and TADPOLE techniques requires a precise and well characterized spectrum, especially in fringe resolution. We developed a new technique, to our knowledge, in which by measuring the nominal fringe spacing of a spectral interferogram one can characterize the spectral resolution in a Czerny-Turner spectrometer using Ryleigh’s criteria. This technique was tested in a commercial Czerny-Turner spectrometer. The results demonstrate a consistent spectral resolution between what was reported by the manufacturer. The actual calibration technique was applied in a homemade broadband astigmatism-free Czerny-Turner spectrometer. Theory and experimental results are presented.

Citation Download Citation

Ramiro Contreras Martínez, Jesús Garduño Mejía, Martha Rosete Aguilar, and Carlos J. Román Moreno "Spectral resolution measurement technique for Czerny-Turner spectrometers based on spectral interferometry", Proc. SPIE 9960, Interferometry XVIII, 996012 (28 August 2016); https://doi.org/10.1117/12.2236502

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