PLC-Based LP11 Mode Rotator With Curved Trench Structure Devised From Wavefront Matching Method

A compact and low-loss PLC-based mode rotator is proposed. The mode rotator with the curved trench structure is designed based on the wavefront matching method, which is an optimization algorithm based on the beam propagation method. The proposed mode rotator is 45% in size (1 mm) and has lower loss...

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Bibliographic Details
Published in:IEEE photonics technology letters 2017-07, Vol.29 (13), p.1063-1066
Main Authors: Yamashita, Yoko, Makino, Shuntaro, Fujisawa, Takeshi, Hanzawa, Nobutomo, Sakamoto, Taiji, Matsui, Takashi, Tsujikawa, Kyozo, Yamamoto, Fumihiko, Nakajima, Kazuhide, Saitoh, Kunimasa
Format: Article
Language:English
Subjects:
Crosstalk
Geometry
Insertion loss
Mode multi/demultiplexer
Multiplexing
Optical losses
Optical waveguides
Optimization
PLC
WFM method
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Summary:A compact and low-loss PLC-based mode rotator is proposed. The mode rotator with the curved trench structure is designed based on the wavefront matching method, which is an optimization algorithm based on the beam propagation method. The proposed mode rotator is 45% in size (1 mm) and has lower loss (1/5) compared with the conventional structure that has a straight trench. Furthermore, the proposed mode rotator can achieve low-mode crosstalk.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2017.2700496