Abstract

This paper describes a new fiber-optic multisensor based on an acousto-optic tunable filter (AOTF) and capable of remote sensing using a multioptical fiber array (MOFA). A two-dimensional charge-coupled device (CCD) was used as a detector, and the AOTF was used as a wavelength selector. Unlike a tunable grating or prism-based monochromator, an AOTF has no moving parts, and an AOTF can be rapidly tuned to any wavelength in its operating range within microseconds. The large aperture of the AOTF allows the optical signal from over 100 fiber-optic sensors to be measured simultaneously. These characteristics, combined with their small size, make AOTFs an important new alternative to conventional monochromators, especially for spectral multisensing and imaging. A prototype fiber-optic multisensor system has been developed, and its feasibility for simultaneous detection of molecular luminescence signal via fiber-optic probes is demonstrated.

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)

Design of a prism to compensate the angular-shift error of the Acousto-optic Tunable Filter

Sung Yoon Ryu, Jang-Woo You, Yoonkeun Kwak, and Soohyun Kim
Opt. Express 16(22) 17138-17147 (2008)

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)

Development of a dual-path system for band-to-band registration of an acousto-optic tunable filter-based imaging spectrometer

Huijie Zhao, Pengwei Zhou, Ying Zhang, Ziye Wang, and Shaoguang Shi
Opt. Lett. 38(20) 4120-4123 (2013)

Hyperspectral imager, from ultraviolet to visible, with a KDP acousto-optic tunable filter

Neelam Gupta and Vitaly Voloshinov
Appl. Opt. 43(13) 2752-2759 (2004)