Highly efficient spectrally encoded imaging using a 45° tilted fiber grating

Wang, Guoqing, Wang, Chao, Yan, Zhijun and Zhang, Lin (2016). Highly efficient spectrally encoded imaging using a 45° tilted fiber grating. Optics Letters, 41 (11), pp. 2398-2401.

Abstract

A novel highly efficient, fiber-compatible spectrally encoded imaging (SEI) system using a 45° tilted fiber grating (TFG) is proposed and experimentally demonstrated for the first time, to the best of our knowledge. The TFG serves as an in-fiber lateral diffraction element, eliminating the need for bulky and lossy free-space diffraction gratings in conventional SEI systems. Under proper polarization control, due to the strong tilted reflection, the 45° TFG offers a diffraction efficiency as high as 93.5%. Our new design significantly reduces the volume of the SEI system and improves energy efficiency and system stability. As a proof-ofprinciple experiment, spectrally encoded imaging of a customer-designed sample (9.6 mm x 3.0 mm) using the TFG-based system is demonstrated. The lateral resolution of the SEI system is measured to be 42 μm in our experiment.

Publication DOI: https://doi.org/10.1364/OL.41.002398
Divisions: Engineering & Applied Sciences > Institute of Photonics
Engineering & Applied Sciences > Electrical, electronic & power engineering
Additional Information: This paper was published in Optics Letters and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: https://www.osapublishing.org/ol/abstract.cfm?uri=ol-41-11-2398. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
Uncontrolled Keywords: Atomic and Molecular Physics, and Optics
Full Text Link: https://kar.kent.ac.uk/55189/
Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
https://www.osa ... i=ol-41-11-2398 (Publisher URL)
Published Date: 2016-06-01
Authors: Wang, Guoqing
Wang, Chao
Yan, Zhijun
Zhang, Lin ( 0000-0002-1691-5577)

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