Share Email Print

Proceedings Paper

Simulation of single mode optical waveguide and Mach-Zehnder interferometer in deep-ultraviolet band
Author(s): Ran Song; Lanting Ji; Juan Su; Chi Wu
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

Deep ultraviolet (deep-UV, 200nm~300nm) spectrum analysis is an important technique in underwater biochemical sensors. For in-situ exploration, integrated optics based wavelength selective light source would have advantages in obtaining high sensitivity spectrum, compactness and low power consumption. The key components used in forming such wavelength selective light source are optical switch and bandpass filters. However, such optical switch and bandpass filter in deep-UV band have rarely been studied, to our best knowledge. In this paper, we proposed and designed a silica-based optical waveguide structure that can achieve single-mode transmission at 210nm-240nm. Furthermore, we designed and simulated a Mach-Zehnder Interferometer (MZI) switch in deep-UV band for in-situ marine chemical sensing application. In our simulation, a rectangular optical waveguide with single-mode operation has been achieved based on phosphorus (P) and boron (B) co-doped Silica core waveguide with 2.9μm in width and 0.35μm in thickness. The refractive index difference between core and cladding layer is Δn=0.003. Based on this waveguide structure, we also designed a Mach-Zenhder interference (MZI) type optical switch with extinction ratio larger than 26dB at deep-UV band.

Paper Details

Date Published: 12 March 2019
PDF: 8 pages
Proc. SPIE 11023, Fifth Symposium on Novel Optoelectronic Detection Technology and Application, 110234G (12 March 2019); doi: 10.1117/12.2521912
Show Author Affiliations
Ran Song, Shandong Univ. (China)
Lanting Ji, Aixsensors Co., Ltd. (China)
Juan Su, Shandong Univ. (China)
Chi Wu, Shandong Univ. (China)
Aixsensors Co., Ltd. (China)

Published in SPIE Proceedings Vol. 11023:
Fifth Symposium on Novel Optoelectronic Detection Technology and Application
Qifeng Yu; Wei Huang; You He, Editor(s)

© SPIE. Terms of Use
Back to Top
Sign in to read the full article
Create a free SPIE account to get access to
premium articles and original research
Forgot your username?