Open AccessHigh‐performance electro‐optic polarisation conversion type modulator for short‐wavelength light using periodically poled MgO:LiNbO 3
Author(s) -
Inoue T.,
Suhara T.
Publication year - 2014
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2014.2848
Subject(s) - materials science , wavelength , optics , optoelectronics , lithium niobate , laser , energy conversion efficiency , bandwidth (computing) , physics , telecommunications , computer science
An electro‐optic (EO) polarisation conversion type modulator for short‐wavelength light using periodically poled MgO:LiNbO 3 is fabricated and the characteristics are evaluated using a tunable GaN laser. High‐quality domain‐inverted gratings with 3.6 μm were obtained over a 1.0 × 1.0 mm 2 area. The maximum conversion efficiency, as high as 91%, was obtained. The wavelength bandwidth was 0.7 nm, which was in good agreement with the calculated value, and high wavelength selectivity was obtained.