Journal article 976 views 181 downloads
Design of W-type Index Chalcogenide Fiber for Highly Coherent Mid-IR Supercontinuum Generation
Journal of Lightwave Technology, Pages: 1 - 1
Swansea University Authors:
Rubén Sevilla , Karin Ennser
-
PDF | Accepted Manuscript
Download (1.17MB)
DOI (Published version): 10.1109/JLT.2018.2873589
Abstract
This paper presents the design of a W-type index chalcogenide fiber for mid-infrared beyond 10μm. The main advantages of the W-type index fiber are the possibility to control the chromatic dispersion with a larger possible core area for single-mode operation compared to a common step-index fiber and...
Published in: | Journal of Lightwave Technology |
---|---|
ISSN: | 0733-8724 1558-2213 |
Published: |
2018
|
Online Access: |
Check full text
|
URI: | https://cronfa.swan.ac.uk/Record/cronfa44952 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Abstract: |
This paper presents the design of a W-type index chalcogenide fiber for mid-infrared beyond 10μm. The main advantages of the W-type index fiber are the possibility to control the chromatic dispersion with a larger possible core area for single-mode operation compared to a common step-index fiber and to enhance the fiber nonlinearity. Our fiber design consists of Ge15Sb15Se70 glass core, Ge20Se80 glass inner cladding and Ge20Sb5Se75 glass outer cladding. The optical mode distribution of the chalcogenide fiber is numerically calculated by employing edge-based finite elements. With 6-μm core diameter and 12-μm inner cladding diameter, the proposed fiber design exhibits flat anomalous dispersion in the wavelength range (4.3-6.5μm) with a peak of about 7ps/(nm.km). It also offers a high nonlinear coefficient of 0.12 W−1m−1 at a pump wavelength of 6.3 μm. The simulation results show that our proposed fiber design provides a highly coherent Mid-IR SC extending from 3.7 to 12 μm pumped at low peak pump power of 1kW. |
---|---|
College: |
Faculty of Science and Engineering |
Start Page: |
1 |
End Page: |
1 |