Open AccessA compact light source at 461 nm using a periodically poled LiNbO_3 waveguide for strontium magneto-optical trapping
Author(s) -
Daisuke Akamatsu,
Masami Yasuda,
Takashi Kohno,
Atsushi Onae,
Feng−Lei Hong
Publication year - 2011
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.19.002046
Subject(s) - materials science , optics , waveguide , second harmonic generation , lithium niobate , strontium , optoelectronics , bandwidth (computing) , trapping , phase matching , laser , physics , ecology , biology , computer network , computer science , nuclear physics
We have developed a compact light source at 461 nm using a single-pass periodically poled LiNbO3 waveguide for second-harmonic (SH) generation. The obtained optical power at 461 nm is 76 mW when the power of the 922-nm fundamental light coupled into the waveguide is 248 mW. Although a narrowing of the phase-matching temperature acceptance bandwidth is observed at a high SH power, stable overnight operation is realized by carefully controlling the device temperature within an uncertainty of 0.01 °C.