Open AccessDesign and fabrication of multiplexed volume Bragg gratings as angle amplifiers in high power beam scanning system
Author(s) -
Peng Chen,
Yunxia Jin,
Deyan He,
Junming Chen,
Jie Xu,
Jingyin Zhao,
Yibin Zhang,
Fanzuo Kong,
Hongbo He,
Jianda Shao
Publication year - 2018
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.26.025336
Subject(s) - optics , materials science , amplifier , multiplexing , fiber bragg grating , diffraction efficiency , fabrication , diffraction grating , grating , volume hologram , polarization (electrochemistry) , optoelectronics , channel spacing , diffraction , wavelength division multiplexing , wavelength , physics , electronic engineering , medicine , chemistry , alternative medicine , cmos , pathology , engineering
In this study, the realization of multiplexed volume Bragg gratings (VBGs) working as angle amplifiers in high power beam scanning system is theoretically and experimentally investigated. The design of the multiplexed VBG for the working wavelength of 1064 nm is described. We propose a cascaded multiplexed VBGs scheme that consists of 12 grating channels. Three 4-channel multiplexed VBGs were fabricated inside photo-thermo-refractive (PTR) glasses by multiple exposures and subsequent heat treatment. The test results show that this angle amplifier can achieve discrete angle deflection ranging from -45° to + 45°. The relative diffraction efficiency of all the grating channels is more than 80% and is almost polarization independent.