Format

Send to

Choose Destination
See comment in PubMed Commons below
Opt Express. 2008 Sep 15;16(19):15069-73.

Compact and low-loss bent hollow waveguides with distributed Bragg reflector.

Author information

1
Department of Optics and Photonics, National Central University, Jhong-Li 320, Taiwan.

Abstract

In this study, a hollow bent waveguide with distributed Bragg reflectors (DBR) in silicon substrate was presented theoretically and experimentally. We used the two-dimensional finite-difference time-domain method to simulate bending transmission efficiencies for arc- and cut-type 90 degrees -bent waveguides. The air core was embedded by Si(3)N(4)/SiO(2) multilayer. The multilayer stacks were deposited by using plasma-enhanced chemical vapor deposition on the top and bottom of air core. The lowest 90 degree bending loss is around 3.9dB for the arc-type bending waveguides and 0.8dB for cut-type bending waveguides, respectively. This waveguide demonstrates a possibility for higher density of integration in planar light wave circuits.

PMID:
18795044
[Indexed for MEDLINE]
PubMed Commons home

PubMed Commons

0 comments

    Supplemental Content

    Full text links

    Icon for Optical Society of America
    Loading ...
    Support Center