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Fiber-optic bending vector sensor based on Mach-Zehnder interferometer exploiting lateral-offset and up-taper.
- Shanshan Zhang, W. Zhang, S. Gao, Pengcheng Geng, Xiaolin Xue
- Medicine, Physics
- Optics letters
- 1 November 2012
A simple, compact, and highly sensitive optical fiber directional bend sensor is presented. This device consists of a lateral-offset splicing joint and an up-taper formed through excessive fusion… Expand
Two-dimensional bending vector sensing based on spatial cascaded orthogonal long period fiber.
A novel bending vector sensor based on spatial cascaded orthogonal long period fiber gratings (SCO-LPFGs) written by high-frequency CO(2) laser pulses has been proposed, and two-dimensional bending… Expand
Simultaneous strain and temperature measurement by cascading few-mode fiber and single-mode fiber long-period fiber gratings.
A hybrid optical fiber structure of two cascading long-period fiber gratings (LPFGs), respectively, inscribed on a segment of few-mode fiber (FMF) and single-mode fiber (SMF), is proposed and… Expand
All-fiber second-order optical vortex generation based on strong modulated long-period grating in a four-mode fiber.
We propose an effective all-fiber method to generate a high-order optical vortex (OV) via twisting a strong modulated long-period fiber grating (LPFG) written in a four-mode fiber (4MF). With a… Expand
Fiber in-line Mach-Zehnder interferometer based on near-elliptical core photonic crystal fiber for temperature and strain sensing.
A fiber in-line Mach-Zehnder interferometer is fabricated by selectively filling liquid into one air hole of the innermost layer of a photonic crystal fiber (PCF). The refractive index of the liquid… Expand
Simultaneous measurement of temperature and force with high sensitivities based on filling different index liquids into photonic crystal fiber.
A double-filled photonic crystal fiber (PCF) was fabricated by filling liquids of different indexes into two air holes in the cladding. The core mode coupled to the local cladding modes LP(01) and… Expand
Microfiber-Enabled In-line Fabry–Pérot Interferometer for High-Sensitive Force and Refractive Index Sensing
A microfiber-enabled Fabry-Pérot interferometer (FPI) constructed by splicing a section of microfiber between two cleaved standard single-mode fibers (SMFs) with unique relative fiber cross section… Expand
Sensitivity-enhanced surface plasmon resonance sensor utilizing a tungsten disulfide (WS 2 ) nanosheets overlayer
Tungsten disulfide (WS2), as a representative layered transition metal dichalcogenide (TMDC) material, possesses important potential for applications in highly sensitive sensors. Here, a… Expand
Fiber Mach-Zehnder interferometer based on concatenated down- and up-tapers for refractive index sensing applications
Abstract We report a novel fiber Mach-Zehnder interferometer based on concatenated down- and up-tapers simply fabricated by arc discharging and fusion splicing. High-quality interference spectra with… Expand
Highly Sensitive In-Fiber Refractive Index Sensor Based on Down-Bitaper Seeded Up-Bitaper Pair
- S. Gao, W. Zhang, Pengcheng Geng, Xiaolin Xue, H. Zhang, Zhiyong Bai
- IEEE Photonics Technology Letters
- 7 September 2012
We report a novel highly sensitive in-fiber refractive index (RI) sensor based on the Mach-Zehnder interferometer (MZI). This sensor is composed of an up-fusion-bitaper (UFBT) pair and an embedded… Expand