Results 41 to 50 of about 326 (131)

Seven-Ring-Core Erbium-Doped Fiber for OAM-MDM Amplification

IEEE Photonics Journal, 2023
Orbital angular momentum (OAM) mode division multiplexing (MDM) amplification in a seven-ring-core erbium-doped fiber (7-RC-EDF) has been experimentally demonstrated, in which the 1st–4th order OAM modes within each core of the 7-RC-EDF can be ...
Qi Jiang, Xiaobo Xue, Fufei Pang, Liang Zhang, Mengshi Zhu, Heiming Wei, Cheng Du, Wei Li, Tingyun Wang   +8 more
doaj   +1 more source

Five Orders of Cascaded Raman Fibre Laser Oscillation From 1550 nm to Mid‐IR at 2334 nm Wavelength

Electronics Letters, Volume 61, Issue 1, January/December 2025.
We experimentally demonstrate five orders of cascaded Raman oscillations (Raman lasers) in a fibre, starting from ∼1550 nm until 2334 nm. ABSTRACT We demonstrate a cascaded Raman fibre laser (RFL) oscillation up to the fifth order Stokes wave, from ∼1550 nm to mid‐IR at 2334 nm, with silica fibres.
Boris Levit, Alexander Bekker, Baruch Fischer   +2 more
wiley   +1 more source

Erbium-Doped Fiber Laser With a Microfiber Coupled to Silica Microsphere

IEEE Photonics Journal, 2012
A compact erbium-doped fiber laser (EDFL) is demonstrated using a piece of 1.5-m-long erbium-doped fiber (EDF) with a microfiber coupled to a silica microsphere at the output end.
A. Sulaiman, S. W. Harun, H. Ahmad
doaj   +1 more source

Opportunities, challenges and requirements for introducing space division multiplexing in fibre optical networks

IET Optoelectronics, Volume 19, Issue 1, January/December 2025.
The authors discuss opportunities, challenges and requirements for successful commercialisation of space division multiplexing (SDM) in optical networks. The authors consider recent developments in SDM technology and focus on the importance of different geometrical parameters when designing multi‐core fibres and on the design choices for shared SDM ...
Gabriele Di Rosa, Lutz Rapp
wiley   +1 more source

Amplification technology for spatial division multiplexing signals transmitted using multicore fibres

IET 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

Development of a portable and cost‐effective femtosecond fibre laser synchronizable with synchrotron X‐ray pulses

Journal of Synchrotron Radiation, Volume 31, Issue 4, Page 821-828, July 2024.
This study introduces a compact, portable femtosecond fibre laser system optimized for synchronization with SPring‐8 synchrotron X‐ray pulses in a uniform filling mode, offering a practical and cost‐effective alternative to traditionally, fixed, installed laser systems for time‐resolved spectroscopy combining synchrotron X‐ray pulses and laser pulses ...
Keisuke Kaneshima, Takumi Kyoda, Shuta Sugeta, Yoshihito Tanaka   +3 more
wiley   +1 more source

Dual-Polarization Distributed Feedback Fiber Laser Sensor Based on Femtosecond Laser-Inscribed In-Fiber Stressors for Simultaneous Strain and Temperature Measurements

IEEE Access, 2020
We propose and experimentally demonstrate a novel dual-polarization distributed feedback fiber laser (DFB-FL) sensor based on femtosecond laser-inscribed in-fiber stressors. The resonant cavity of the DFB-FL sensor consists of a phase-shifted fiber Bragg
Kuikui Guo, Jun He, Gaixia Xu, Yiping Wang   +3 more
doaj   +1 more source

In-Fiber Mach–Zehnder Interferometer Based on Er Doped Up-Taper and Peanut-Shaped Fiber Structure in Fiber Ring Laser

IEEE Access, 2021
It is demonstrated that in this paper a peanut shaped structure cascaded with up-taper fiber structure can realize the inter mode interference between the Erbium doped fiber (EDF) core mode and cladding modes in fiber ring laser (FRL).
Weihao Lin, Shengjie Zhou, Li-Yang Shao, Mang I. Vai, Perry Ping Shum, Fang Zhao, Shuaiqi Liu, Jie Hu, Yuhui Liu   +8 more
doaj   +1 more source

Multistability manipulation by reinforcement learning algorithm inside mode‐locked fiber laser

Nanophotonics, Volume 13, Issue 16, Page 2891-2901, July 2024.
Abstract Fiber mode‐locked lasers are nonlinear optical systems that provide ultrashort pulses at high repetition rates. However, adjusting the cavity parameters is often a challenging task due to the intrinsic multistability of a laser system. Depending on the adjustment of the cavity parameters, the optical output may vary significantly, including Q ...
Alexey Kokhanovskiy, Evgeny Kuprikov, Kirill Serebrennikov, Aram Mkrtchyan, Ayvaz Davletkhanov, Alexey Bunkov, Dmitry Krasnikov, Mikhail Shashkov, Albert Nasibulin, Yuriy Gladush   +9 more
wiley   +1 more source

Graphene-Based Saturable Absorber for Single-Longitudinal-Mode Operation of Highly Doped Erbium-Doped Fiber Laser

IEEE Photonics Journal, 2012
In this paper, a conventional wavelength band (C-band) fiber laser with a tunable single-longitudinal-mode (SLM) output using multilayer graphene as a saturable absorber is demonstrated. The proposed fiber laser uses a short length of highly doped erbium-
F. D. Muhammad, M. Z. Zulkifli, A. A. Latif, S. W. Harun, H. Ahmad   +4 more
doaj   +1 more source