Results 41 to 50 of about 579 (123)

Compact Multiwavelength Brillouin Fiber Laser by Utilizing EDF as Hybrid Gain Media

open access: yesIEEE Photonics Journal, 2015
We have experimentally demonstrated a compact multiwavelength Brillouin fiber laser by introducing an optical feedback mechanism in the laser configuration.
Heng Xie   +3 more
doaj   +1 more source

Multi-wavelength erbium-doped fiber laser using four-wave mixing effect in doped fiber

open access: yes, 2011
We demonstrate a multi-wavelength erbium-doped fiber laser (EDFL) using erbium gain and four-wave mixing (FWM) effect in a piece of erbium-doped fiber (EDF) with high erbium ion concentration. The EDF has a pump absorption rate of 24.6 dB/m at 979 nm and
S. W. Harun, and S. W. Harun   +3 more
core   +1 more source

Amplification technology for spatial division multiplexing signals transmitted using multicore fibres

open access: yesIET Optoelectronics, Volume 18, Issue 6, Page 179-187, December 2024.
Multicore (MC‐) erbium‐doped fibre amplifier (EDFA) architecture is classified from the viewpoint of the number of erbium‐doped fibre (EDF) cores and its pumping method. In particular, the advantages of cladding pumped MC‐EDFA are shown. Abstract Amplification technologies needed for spatial division multiplexing (SDM) signal transmission have been ...
Hitoshi Takeshita
wiley   +1 more source

150-Channel Four Wave Mixing Based Multiwavelength Brillouin-Erbium Doped Fiber Laser

open access: yesIEEE Photonics Journal, 2013
A wide band tunable multiwavelength Brillouin-erbium fiber laser (BEFL) is developed. In this structure, the laser is formed between a double pass amplification box and a highly nonlinear fiber (HNLF), which acts as a virtual mirror, results in removing ...
A. W. Al-Alimi   +5 more
doaj   +1 more source

Amplifying Orbital Angular Momentum Modes in Ring-Core Erbium-Doped Fiber

open access: yesResearch, 2020
Lots of research efforts have been devoted to increase the transmission capacity in optical communications using orbital angular momentum (OAM) multiplexing. To enable long-haul OAM mode transmission, an in-line OAM fiber amplifier is desired.
Jun Liu   +8 more
doaj   +1 more source

A Selectable Single-Mode Erbium Fiber Laser With Mach-Zehnder Interferometer and Rayleigh Injection Scheme

open access: yesIEEE Photonics Journal, 2022
In the paper, a hybrid Mach-Zehnder interferometer (MZI) and Rayleigh backscattering (RB) injection is designed and applied in the erbium-doped fiber (EDF) ring laser configuration.
Chien-Hung Yeh   +4 more
doaj   +1 more source

One‐Step Fabrication of 0D Cs4PbBr6 Perovskite with Nonlinear Optical Properties for Ultrafast Pulse Generation

open access: yesAdvanced Science, Volume 11, Issue 35, September 18, 2024.
This study focuses on exploring the nonlinear optical properties of 0D Cs4PbBr6 and Cs4PbBr6/CsPbBr3 composites perovskites. For the first time, they are successfully integrated as saturable absorbers into erbium‐doped fiber lasers, achieving conventional soliton mode‐locking operations within the C‐band.
Ning Jiang   +5 more
wiley   +1 more source

Radiation-resistant erbium-doped-nanoparticles optical fiber for space applications

open access: yes, 2012
International audienceIn the last decade, there has been increased interest in photonic technology for new satellite applications. One critical issue is the high sensitivity to radiative environments of the Erbium Doped Fiber (EDF).
Maignan, M.   +19 more
core   +1 more source

Application of machine learning for signal recognition in distributed fibre optic acoustic sensing technology

open access: yesIET Optoelectronics, Volume 18, Issue 4, Page 81-95, August 2024.
The authors provide a comprehensive review of signal feature extraction and pattern recognition techniques applied in distributed acoustic sensing (DAS) technology. After introducing the fundamentals of DAS, specific applications are considered, and the following techniques have been analysed and compared: feature extraction algorithms based on wavelet
Yage Zhan, Lirui Liu, Kehan Li
wiley   +1 more source

Stable Single-Longitudinal-Mode Erbium Fiber Ring Laser Utilizing Self-Injection and Saturable Absorber

open access: yesIEEE Photonics Journal, 2017
In this work, we demonstrate a wavelength-tunable erbium-doped fiber (EDF) ring laser with stable single-longitudinal-mode (SLM) output. Here using the self-injection method and unpumped EDF-based saturable absorber can suppress other densely side-mode ...
Chien-Hung Yeh   +4 more
doaj   +1 more source

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