Open AccessSpot size transformer with a type-B antiresonant reflecting optical waveguide
Author(s) -
Yasuo Kokubun,
Shuichi Tamura,
Tatsumasa Kondo
Publication year - 1992
Publication title -
optics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.524
H-Index - 272
eISSN - 1071-2763
pISSN - 0146-9592
DOI - 10.1364/ol.17.001746
Subject(s) - optics , refractive index , materials science , waveguide , insertion loss , transformer , physics , voltage , quantum mechanics
A type-B antiresonant reflecting optical waveguide was incorporated into a spot size transformer to achieve precise control of the spot size without precise control of the refractive index. Owing to the optimum design, a low insertion loss of 0.9 dB and a large transformation ratio of 5.6 were successfully obtained.
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