Qianfei Zhu , Tian Tian , Yiwei Ma , Yongtian Zhu , Tao Geng , Libo Yuan
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引用次数: 0
Abstract
Fiber refractive index (RI) sensor shows superiority in various applications including biomedical detection and food chemistry. Herein, we propose and investigate a super-structured long-period fiber grating (SLPFG) for RI measurement with the high-sensitivity. This fiber structure is composed of periodically spliced no-core fibers (NCF) and single-mode fiber (SMF) according to a certain modulation function, which effectively excites the high order cladding mode and improves the sensitivity of RI. Experimental results show that the sensor has a high sensitivity of RI at 557.74 nm/RIU in the measurement range of 1.33–1.42. The total structural length of SLPFG is only 5.4 mm, which is beneficial for integrated applications. In addition, the sensor achieves good stability, repeatability and strong mechanical properties, which has broad application prospects in environmental monitoring, biochemical monitoring, medical diagnosis and other aspects.
期刊介绍：
Innovations in optical fiber technology are revolutionizing world communications. Newly developed fiber amplifiers allow for direct transmission of high-speed signals over transcontinental distances without the need for electronic regeneration. Optical fibers find new applications in data processing. The impact of fiber materials, devices, and systems on communications in the coming decades will create an abundance of primary literature and the need for up-to-date reviews.
Optical Fiber Technology: Materials, Devices, and Systems is a new cutting-edge journal designed to fill a need in this rapidly evolving field for speedy publication of regular length papers. Both theoretical and experimental papers on fiber materials, devices, and system performance evaluation and measurements are eligible, with emphasis on practical applications.
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