搜索结果: 1-13 共查到“光学工程 bend”相关记录13条 . 查询时间(0.267 秒)
Low-Crosstalk and Low-Loss Multi-Core Fiber Utilizing Fiber Bend
Fiber design and fabrication Fiber optics optical communications
2015/5/26
We designed and fabricated a multi-core fiber whose attenuation is less than 0.18 dB/km and effective area is about 80 m 2 . Crosstalk was observed be less than -55.5 dB after 17.6 km propagat...
Cutoff Mechanisms in Bend-Insensitive Single-Mode Fibers
Fibers single-mode Fiber properties
2015/5/22
We present a comprehensive study that explains the specific mechanisms that govern the cutoff behaviors of G.657 single-trench-assisted Bend-Insensitive Single Mode Fibers (BI-SMFs) compared to those ...
Multi-Path Interference in a bend-insensitive fiber
Multi-Path Interference bend-insensitive fiber
2015/5/20
Multi Path Interference noise in a bend-insensitive fiber is examined by wavelength and polarization scanning, by sample stretching, and by increasing the end splices misalignment,to find the splice l...
New designs of bend-insensitive multimode fibers are proposed. The bending loss can be reduced by a factor of 10 while meeting all other standard requirements. The design concept is validated by actua...
Directional Bend Sensor Based on Re-Grown Tilted Fiber Bragg Grating.
Bend sensor birefringence cladding mode op-tical fiber sensors tilted fiber Bragg grating
2013/5/27
A novel fiber optic bend sensor is implemented by using a re-grown tilted fiber Bragg grating (TFBG) written in a small core single mode fiber with UV overexposure. The spectrum of the re-grown TFBG c...
All-Solid Single-Trench-Assisted Bend-Insensitive Fibers:Performances and Deployment Aspects
Fibers single-mode Fiber properties
2015/6/5
We demonstrate how all-solid single-trench-assisted (ultra-) bend-insensitive fibers meet the FTTH market requirements and growing needs. High manufacturing robustness,excellent splicing performances ...
Highly sensitive bend sensor with hybrid long-period and tilted fiber Bragg grating.
Long period grating Tilted fiber Bragg grating Cladding mode recoupling Bend sensor Curvature measureme nt
2013/5/27
We demonstrate a new type offi ber optic bend sensor with a hybrid structure made up of a long period grating (LPG) and a tilted fiber Bragg grating (TFBG). The sensing mechanis m is based on the spec...
Proposal of Reliable Cutoff Wavelength Measurement for Bend Insensitive Fiber
Reliable Cutoff Wavelength Measurement Bend Insensitive Fiber
2015/7/16
Reliable technique to determine the cutoff wavelength using single-mode fiber as a reference is newly proposed. This technique identifies cutoff wavelength of 1st higher-order-mode in BIF precisely, w...
Bend-Insensitive and Effectively Single-Moded All-Solid Photonic Bandgap Fibers with Heterostructured Cladding
Bend-Insensitive Effectively Single-Moded All-Solid Photonic Bandgap Fibers Heterostructured Cladding
2015/7/14
We propose a novel concept of cladding structure in all-solid photonic bandgap fibers. It promises low bending and confinement losses with single-mode operation. The mechanism is based on the new conc...
Investigating Micro-Bend Sensitivity of a Large-Mode-Area Bragg Fiber
Investigating Micro-Bend Sensitivity Large-Mode-Area Bragg Fiber
2015/7/14
Phase-sensitive Optical Low Coherence Reflectometry technique is used to characterize the modes couplings induced by micro-bends in a Large-Mode-Area Bragg fiber made with PCVD. Single-point and multi...
A 60° photonic crystal waveguide bend with improved transmission characteristics
photonic crystal waveguide bend bandwidth
2011/5/6
In this paper, a 60° waveguide bend is designed in a two-dimensional (2D) photonic crystal (PC) slab to provide high transmission over a large bandwidth. We apply geometrical modification in the bend ...
Solid low-bend-loss transmission fibers using resonant suppression of higher-order modes
transmission fibers resonant suppression higher-order modes
2015/7/30
Ring-assisted fibers suppress unwanted modes, improving the tradeoff that limits bend loss. Fabricated fibers achieve low bend loss and compatibility with standard fibers required for fiber to the hom...
Bend-Induced Transformation of the Transmission window of a Large-Mode-Area Bragg Fibre
Transmission window Large-Mode-Area Bragg Fibre
2015/7/30
We study the effect of bends on the transmission window of the first PCVD large-mode-area Bragg fibre. The origin and the consequences of this effect are also presented.