Optical fiber temperature sensor based on dumbbell-shaped Mach–Zehnder interferometer

Jianchang Tan; Guoying Feng; Jingchuan Liang; Shulin Zhang

doi:10.1117/1.OE.57.1.017112

25 January 2018 Optical fiber temperature sensor based on dumbbell-shaped Mach–Zehnder interferometer

Jianchang Tan, Guoying Feng, Jingchuan Liang, Shulin Zhang

Author Affiliations +

Optical Engineering, Vol. 57, Issue 1, 017112 (January 2018). https://doi.org/10.1117/1.OE.57.1.017112

Abstract

A dumbbell-shaped and core-disconnected microstructure all-fiber temperature sensor based on the Mach–Zehnder interferometer (MZI) is designed and implemented. To the best of our knowledge, the MZI with this configuration was produced and applied to sense temperature for the first time. It demonstrated that this all-fiber interferometer incorporates intermodal interference between the LP01 mode and a high-order cladding mode of LP07. Theoretical and experimental results indicate that the linearity of the spectral shift due to the temperature change is ∼0.999 and the sensitivity at 25°C to 400°C is ∼26.03 pm/°C and at −25°C to 20°C is ∼23.87 pm/°C. The reproducibility error of this all-fiber temperature sensor at 25°C to 400°C is <0.71%. Benefiting from the advantages of low cost, compact structure, and environment friendliness, this dumbbell-shaped sensor is expected to be one of the innovative micro–nano all-fiber sensors.

Citation Download Citation

Jianchang Tan, Guoying Feng, Jingchuan Liang, and Shulin Zhang "Optical fiber temperature sensor based on dumbbell-shaped Mach–Zehnder interferometer," Optical Engineering 57(1), 017112 (25 January 2018). https://doi.org/10.1117/1.OE.57.1.017112

Received: 27 August 2017; Accepted: 3 January 2018; Published: 25 January 2018

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