Now showing items 31-40 of 132
64 Core ultra dense multicore fiber design for optical fronthaul systems
To make the most of spatial efficiency, we design 64-core trench-assisted multi-core fiber with the maximum crosstalk less than -14dB/20km, which is appropriate for the optical wireless fronthaul systems with inherent MIMO ...
Simultaneous Measurement of Torsion and Temperature Based on Helical Structure in Multicore Fiber
An all-fiber torsion sensor based on a helical structure in a multicore fiber is demonstrated. The sensor exhibits the ability of discriminating torsion direction, torsion angle and temperature.
Efficient edge coupler for higher order mode fiber-to-chip coupling
An edge coupler composed of two tapered waveguides and a Y-branch for LP11-TE1 mode coupling and mapping is proposed on silicon-on-insulator platform. An average 3 dB coupling loss can be acquired within 100 nm bandwidth.
Design and analysis of surface plasmon resonance sensor based on high-birefringent microstructured optical fiber
Optical fiber based surface plasmon resonance (SPR) sensors are favored by their high sensitivity, compactness, remote and in situ sensing capabilities. Microstructured optical fibers (MOFs) possess microfluidic channels ...
A passively mode-locked erbium-doped fiber laser based on a single-wall carbon nanotube polymer
We demonstrate a simple, compact and low-cost mode-locked erbium-doped fiber laser (EDFL) using a single-wall carbon nanotube (SWCNT) poly-ethylene oxide (PEO) composite as a passive saturable absorber (SA). The composite ...
Efficient phase-matched third harmonic generation from mid-IR to near-IR regions in a double asymmetric plasmonic slot waveguide
Recent years, the research of mid-infrared (mid-IR) photonics has inspired increasingly interest due to their potential applications in a wide variety of areas, including free-space communications, chemical or biological ...
Highly sensitive strain sensor based on helical structure combined with Mach-Zehnder interferometer in multicore fiber
Optical fiber sensors for strain measurement have been playing important roles in structural health monitoring for buildings, tunnels, pipelines, aircrafts, and so on. A highly sensitive strain sensor based on helical ...
M-OTDR sensing system based on 3D encoded microstructures
In this work, a quasi-distributed sensing scheme named as microstructured OTDR (M-OTDR) by introducing ultra-weak microstructures along the fiber is proposed. Owing to its relative higher reflectivity compared with the ...
In-line optofluidic refractive index sensing in a side-channel photonic crystal fiber
An in-line optofluidic refractive index (RI) sensing platform is constructed by splicing a side-channel photonic crystal fiber (SC-PCF) with side-polished single mode fibers. A long-period grating (LPG) combined with an ...
Magnetic field sensor with optical fiber bitaper-based interferometer coated by magnetic fluid
An optical fiber magnetic field sensor is demonstrated using a waist-enlarged fusion bitaper-based optical fiber Mach-Zehnder interferometer (MZI) coated by magnetic fluid (MF). Since refractive index (RI) of the MF is ...