Open AccessNovel ultracompact Si-nanowire-based arrayed-waveguide grating with microbends
Author(s) -
Daoxin Dai,
Sailing He
Publication year - 2006
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.14.005260
Subject(s) - arrayed waveguide grating , optics , demultiplexer , materials science , diffraction grating , waveguide , channel spacing , nanowire , grating , diffraction , wavelength division multiplexing , optoelectronics , physics , multiplexing , telecommunications , wavelength , computer science , multiplexer
A novel layout is presented to minimize the size of an arrayed-waveguide grating (AWG) demultiplexer based on Si nanowire waveguides, in particular when a high diffraction order is required. A series of microbends are inserted in the middle of arrayed waveguides to increase the lightpath difference while keeping small separation between arrayed waveguides. A designed ultrasmall AWG with a narrow channel spacing of 0.8 nm has a total size of only about 0.505 mmx0.333 mm (0.165 mm(2)).