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
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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