DocumentCode
1479338
Title
Design and fabrication of integrated-optic 8*8 star coupler
Author
Okamoto, K. ; Takahashi, H. ; Suzuki, S. ; Sugita, A. ; Ohmori, Y.
Author_Institution
NTT Optoelectron. Labs., Ibaraki, Japan
Volume
27
Issue
9
fYear
1991
fDate
4/25/1991 12:00:00 AM
Firstpage
774
Lastpage
775
Abstract
The design and fabrication of an integrated-optic 8*8 star coupler is described. The coupler consists of two fan-shaped channel waveguide arrays facing each other and a slab waveguide region located in between them. The coupler geometry was designed and optimised by using the beam propagation method (BPM). The coupler was fabricated on silicon substrate using high-silica planar lightwave circuit (PLC) technology. The device exhibits low loss (average excess loss alpha =1.42 dB) and good coupling uniformity (standard deviation sigma =0.49 dB), which agree quite well with the BPM simulations.
Keywords
integrated optics; optical couplers; Si substrate; beam propagation method; fabrication; fan-shaped channel waveguide arrays; high-silica planar lightwave circuit; integrated-optic; low loss; slab waveguide region; star coupler;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19910481
Filename
74914
Link To Document