Showing papers in "Optical Fiber Technology in 2016"

TL;DR: In this paper, a new design of a circular photonic crystal fiber, which can support 26 OAM modes, is proposed, and numerical analysis shows that the proposed fiber possesses very good values of the fiber parameters, such as low confinement loss which is lower than 0.003dB/m at wavelength of 1.55μm, flat chromatic dispersion whose dispersion variation for the OAM mode with the order number | l | ⩽ 4 is within 39.84ps/nm/km over a 750nm bandwidth from 1.25 to 2μm

TL;DR: A new generalized algorithm to construct EDW and MDW like codes without mapping for any weight greater than 2 is proposed and analysed for BER using balanced detection and direct detection techniques.

TL;DR: In this article, a systematic study of annealing behavior of drawn PMMA fibers was performed and the shrinkage process was found to follow a stretched exponential decay function revealing the heterogeneous nature of the underlying molecular dynamics.

TL;DR: Simulation results show that MPFA can achieve better performance than existing algorithms in terms of blocking probability and spectrum utilization and can be used to solve the problem of resource scarcity.

TL;DR: In this article, a digital holographic microscopic chromatography-based approach with considerably improved accuracy, simplified configuration and performance stability is proposed to measure three dimensional refractive index of special optical fibers.

TL;DR: In this paper, the temperature influence to a refractive index (RI) sensor based on a macro-bending tapered plastic optical fiber (POF) was investigated experimentally.

TL;DR: In this article, the authors present a strategy for survivability which optimizes primary and backup spectrum allocations and multiple backup route assignments for surviving a connection request, named as Backup Spectrum Reservation with MultiPath Protection (BSR-MPP), which searches multiple backup routes over advance reserved backup resources when an optical connection is concerned.

TL;DR: In this paper, the authors investigated the general principle and method of monitoring seepage velocity in the hydraulic engineering, the theoretical analysis and physical experiment were implemented based on distributed fiber-optic temperature sensing (DTS) technology.

TL;DR: In this article, a ring cavity thulium-doped fiber laser incorporating a Sagnac loop is proposed and experimentally demonstrated, and by adjusting the polarization controller, a tunable and stable single-wavelength laser can be realized.

TL;DR: It offers optimistic thinking to show optical TDM at this phase as one of the future direction, where complex digital signal processing (DSP) and coherent optical communication are frequently demonstrated to serve the access network.

TL;DR: A novel multilevel modulation format based on partial-response signaling called Absolute Added Correlative Coding is proposed and numerically demonstrated for high-speed fiber-optic communication systems.

TL;DR: In this paper, the temperature dependent behavior of silica-based optical fibers upon exposure to high temperatures in hydrogen and ambient air was examined in the wavelength range of 1000-2500nm of commercially available multimode fibers with pure silica and germanium doped cores.

TL;DR: In this article, a simple Mach-Zehnder interferometer (MZI) was presented for high temperature measurement, which was composed of a short segment of suspended core fiber (SCF) sandwiched between two standard single mode fibers (SMFs) with a misaligned splicing joint.

TL;DR: Application of some isotropic materials is an attempt to prove that there is a possibility to obtain a low-cost, repeatable and smart sensor working as an in-line element based on a biconical optical fibre taper.

TL;DR: In this paper, a low-temperature-sensitive relative humidity (RH) sensor based on multimode interference effects has been proposed, which consists of a section of tapered square no-core fiber (TSNCF) coated with SiO2 nanoparticles which is fabricated by splicing the TSNCF with two singlemode fibers (SMFs).

TL;DR: This work summarizes how OAM enables efficient mode multiplexing for optical communications, with emphasis on the design of OAM fibers.

TL;DR: The proposed algorithm and the least-hop fixed-alternate algorithm are implemented and it is shown how the rearrangement of SPs contributes to a lower BP in the network.

TL;DR: This paper focuses on survivable mapping of virtual networks and the potential trade-off between spectral resource usage effectiveness and failure resilience level and designs an optimum shared protection mapping (OSPM) scheme in elastic optical networks.

TL;DR: In this paper, a C-band erbium doped fiber ring laser is proposed and investigated for high optical signal to noise ratio operation in lightwave transmission, where two sub-ring cavities and a saturable absorber are used.

TL;DR: In this article, a switchable single-polarization (SP), dual-wavelength thulium-doped fiber laser using polarization maintaining (F-P) filter is proposed.

TL;DR: In this article, a backward-pump transverse mode fiber laser is proposed to generate optical beams based on few-mode fiber Bragg grating, which possesses several reflection peaks by adjusting the core offset.

TL;DR: In this article, a segment of long-period fiber grating (LPFG) was proposed to selectively filter the fundamental mode in the few-mode optical fiber by applying an appropriate chosen surrounding material and an apodized configuration of LPFG, high fundamental mode loss and low high order core mode loss can be achieved simultaneously.

TL;DR: The simulation results indicate that the SPP-RSB-SS algorithm can increase the sharing degree of protection spectrum effectively and enhance the spectrum utilization, and reduce the bandwidth blocking probability significantly.

TL;DR: An optical fiber Fabry-Perot interferometer (FPI) based on hollow-core photonic crystal fiber (HCPCF) for microorganism growth detection is proposed and demonstrated.

TL;DR: This paper introduces a comprehensive spectrum consumption model to simultaneously investigate both the allocated and the fragmented spectrum consumptions and proposes a time-aware spectrum-efficient heuristics algorithm to solve this model in both static and dynamic traffic scenarios.

TL;DR: In this article, the authors analyzed the effect of predispersion for reduction of intrachannel nonlinear impairments in a quasi-linear strongly dispersion-managed transmission system.

TL;DR: In this paper, the spectral interference fringes were observed in chirped large mode area fiber Bragg grating (CFBG) in the overlapping region of the reflected spectrum of fiber modes by a high resolution spectrometer.

TL;DR: In this article, the authors investigated the effectiveness of using phase-conjugated twin waves (PCTWs) technique to mitigate fiber nonlinear impairments in spatially multiplexed all-optical orthogonal frequency division multiplexing (AO-OFDM) systems.

TL;DR: In this paper, a dual-wavelength fiber laser (DWFL) using nano-engineered Thulium-doped fiber as a gain medium with a bent singlemode-multimode-singlemode fiber structure (SMS) is demonstrated.

TL;DR: The improved STM (iSTM) improves the proposed STM and designed three heuristics for its implementation in EONs and shows that BSRSA consistently outperformed over TA-RSA under all distinctive experimental cases that were considered and achieved fairness in serving heterogeneous bandwidth SLDs.