A dual-parameter optical sensor has been realized by UV-writing a long-period and a Bragg grating structure in D-fiber. The hybrid configuration permits the detection of the temperature from the latter and measuring the external refractive index from the former responses, respectively. The employment of the D-fiber allows as effective modification and enhancement of the device sensitivity by cladding etching. The grating sensor has been used to measure the concentrations of aqueous sugar solutions, demonstrating the potential capability to detect concentration changes as small as 0.01%.
|Title of host publication||Advanced Sensor Systems and Applications II|
|Editors||Yun-Jiang Rao, Osuk Y. Kwon, Gang-Ding Peng|
|Number of pages||6|
|Publication status||Published - 28 Feb 2005|
|Event||Advanced Sensor Systems and Applications II - , United Kingdom|
Duration: 28 Feb 2005 → …
|Conference||Advanced Sensor Systems and Applications II|
|Period||28/02/05 → …|
Bibliographical noteXianfeng Chen ; Kaiming Zhou ; Lin Zhang ; Ian Bennion and Tongyu Liu
"Optical sensor based on hybrid LPG/FBG in D-fiber for simultaneous refractive index and temperature measurement", Proc. SPIE 5634, Advanced Sensor Systems and Applications II, 140 (February 28, 2005); doi:10.1117/12.570219.
Copyright 2005 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
- dual-parameter optical sensor
- a Bragg grating structure in D-fiber
- external refractive index
- cladding etching
- grating sensor
- aqueous sugar solutions