Sensitivity-enhanced optical temperature sensor with cascaded LPFGs

Yasuhiro Tsutsumi; Yuji Miyoshi; Masaharu Ohashi

doi:10.1117/12.904304

29 November 2011 Sensitivity-enhanced optical temperature sensor with cascaded LPFGs

Yasuhiro Tsutsumi, Yuji Miyoshi, Masaharu Ohashi

Proceedings Volume 8307, Passive Components and Fiber-Based Devices VIII; 83070U (2011) https://doi.org/10.1117/12.904304
Event: SPIE/OSA/IEEE Asia Communications and Photonics, 2011, Shanghai, China

Abstract

We propose a new structure of optical fiber temperature sensor with cascaded long-period fiber gratings (LPFGs) and investigate the temperature dependent loss of cascaded LFPGs. Each of the cascaded LPFGs has the same resonance wavelength with the same temperature change, because the cascaded LPFGs are made of a heat-shrinkable tube and a screw. The total resonance loss of proposed cascaded LPFGs shows higher temperature sensitivity than that of a single LPFG. The thermal coefficient of 4-cascaded LPFG also shows more than 4 times larger than that of a single one.

Citation Download Citation

Yasuhiro Tsutsumi, Yuji Miyoshi, and Masaharu Ohashi "Sensitivity-enhanced optical temperature sensor with cascaded LPFGs", Proc. SPIE 8307, Passive Components and Fiber-Based Devices VIII, 83070U (29 November 2011); https://doi.org/10.1117/12.904304

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