Abstract

An electronic spectrometer based on an acousto-optic tunable filter (AOTF) is presented. These devices are electronically tunable, narrow-band light filters with no moving parts. The wavelength range from 350 to 600 nm can be covered with a single device, the entire spectrum is scanned in less than 1 s, and any wavelength can be randomly accessed in 0.1 ms. The resolution [full width at half-height (FWHH)] was determined to be 0.22 nm at 361 nm, and the standard deviation of peak position was usually less than 0.03 nm. Under software control, the AOTF can be stationary on a line, peak-hop between any 20 different lines, hop between 20 regions of any size, scan a spectrum, or operate as a wavelength modulation spectrometer. Operation of the spectrometer is illustrated by using hollow cathode and inductively coupled plasma atomic emission sources.

Characterization of the stray light in a space borne atmospheric AOTF spectrometer

Oleg Korablev, Anna Fedorova, Eric Villard, Lilian Joly, Alexander Kiselev, Denis Belyaev, and Jean-Loup Bertaux
Opt. Express 21(15) 18354-18360 (2013)

Acousto-optic tunable filter spectrometers in space missions [Invited]

Oleg I. Korablev, Denis A. Belyaev, Yuri S. Dobrolenskiy, Alexander Y. Trokhimovskiy, and Yuri K. Kalinnikov
Appl. Opt. 57(10) C103-C119 (2018)

Basic angles in microelectromechanical system scanning grating spectrometers

Tino Puegner, Jens Knobbe, and Hubert Lakner
Appl. Opt. 50(24) 4894-4902 (2011)

Notch filtering using a multiple passband AOTF in the SWIR region

Neelam Gupta and Dennis R. Suhre
Appl. Opt. 55(28) 7855-7860 (2016)

MWIR thermal imaging spectrometer based on the acousto-optic tunable filter

Huijie Zhao, Zheng Ji, Guorui Jia, Ying Zhang, Yansong Li, and Daming Wang
Appl. Opt. 56(25) 7269-7276 (2017)