Open AccessAn ultracompact multimode interference wavelength splitter employing asymmetrical multi-section structures
Author(s) -
Changliang Yao,
H.-G. Bach,
Ruiyong Zhang,
Gan Zhou,
Jung Han Choi,
Cong Jiang,
R. Kunkel
Publication year - 2012
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.20.018248
Subject(s) - optics , splitter , wavelength , multiplexer , interference (communication) , beam splitter , multi mode optical fiber , optoelectronics , photodiode , materials science , physics , optical fiber , multiplexing , computer science , telecommunications , laser , channel (broadcasting)
By using the film mode matching method, a novel design for asymmetrical multi-section 1.55/1.31 μm wavelength splitter based on multimode interference has been proposed and simulated, which can be effectively applied to wavelength multiplexer, self-biased photodiode, and other optical devices. Compared with the conventional wavelength splitter design, the length of the novel structure has been reduced to at least 1/5, showing better performance. The presented structure is also adequate for splitting other wavelengths and more tolerable fabrications.