An inline fiber Mach-Zehnder interferometer based on core-offset and peanut-shape for refractive index sensing

Yanfei Zhou; Yuan Liu; Jie Zheng

doi:10.1117/12.2641623

19 December 2022 An inline fiber Mach-Zehnder interferometer based on core-offset and peanut-shape for refractive index sensing

Yanfei Zhou, Yuan Liu, Jie Zheng

Author Affiliations +

Proceedings Volume 12319, Optical Metrology and Inspection for Industrial Applications IX; 123191U (2022) https://doi.org/10.1117/12.2641623
Event: SPIE/COS Photonics Asia, 2022, Online Only

Conference Poster

Abstract

An inline fiber Mach-Zehnder Interferometer (MZI) that consisted of a standard single-mode fiber sandwiched between one peanut-shape and a core-offset joints is fabricated by a fusion splicer for RI sensing purpose. After substituted a peanut shape for a core-offset in an inline fiber MZI with the core-offset pair, the influence caused by the misplaced direction of the core-offset is avoided since the peanut structure is symmetrical, and it is found that its RI sensing performance was improved as well. The inline fiber MZIs with the different arm lengths and core-offset displacement were evaluated for refractive index (RI) measurement. The RI sensitivity of -72.4 nm/RIU was achieved within the measured RI range of 1.333–1.373.

Conference Presentation

Citation Download Citation

Yanfei Zhou, Yuan Liu, and Jie Zheng "An inline fiber Mach-Zehnder interferometer based on core-offset and peanut-shape for refractive index sensing", Proc. SPIE 12319, Optical Metrology and Inspection for Industrial Applications IX, 123191U (19 December 2022); https://doi.org/10.1117/12.2641623

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available