Ultralow Propagation Loss Slot-Waveguide in High Absorption Active Material

Ultralow Propagation Loss Slot-Waveguide in High Absorption Active Material

A slot waveguide formed by high absorption active material is proposed to reduce the propagation loss for monolithic integration. The low propagation loss is attained by concentrating the optical field inside the low-index slot region without absorption. The simulation results show that the propagat...

Full description

Bibliographic Details
Main Authors: Yongzhuo Li, Kaiyu Cui, Xue Feng, Yidong Huang, Fang Liu, Wei Zhang
Format: Article
Language:English
Published: IEEE 2014-01-01
Series:IEEE Photonics Journal
Subjects:
Waveguides
nanostructures
semiconductor materials
Online Access:https://ieeexplore.ieee.org/document/6807516/
Description
Summary:A slot waveguide formed by high absorption active material is proposed to reduce the propagation loss for monolithic integration. The low propagation loss is attained by concentrating the optical field inside the low-index slot region without absorption. The simulation results show that the propagation loss at 1.55 &#x03BC;m for the slot waveguide can be as low as 1.5 dB/cm in active material with an absorption coefficient of 3000 cm<sup>-1</sup>, whereas the optical profile is set to be confined within 650 nm.
ISSN:1943-0655

Similar Items