Fabrication of polarization-independent single-mode waveguides in lithium niobate crystal with femtosecond laser pulses
Author(s) -
Jia Qi,
Peng Wang,
Yang Liao,
Wei Chu,
Zhengming Liu,
Zhaohui Wang,
Lingling Qiao,
Ya Cheng
Publication year - 2016
Publication title -
optical materials express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.925
H-Index - 66
ISSN - 2159-3930
DOI - 10.1364/ome.6.002554
Subject(s) - materials science , lithium niobate , optics , femtosecond , fabrication , cladding (metalworking) , laser , polarization (electrochemistry) , optoelectronics , medicine , chemistry , physics , alternative medicine , pathology , metallurgy
We report on fabrication of depressed cladding optical waveguides buried in lithium niobate crystal with shaped femtosecond laser pulses. Depressed cladding waveguides of variable mode-field sizes are fabricated by forming the four sides of the cladding using a slit-beam shaping technique. We show that the waveguides fabricated by our technique allows single-mode propagation of the light polarized in both vertical and horizontal directions.
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