Results 41 to 50 of about 2,078 (167)

Design and analysis of annulus core few mode EDFA for modal gain equalization

, 2016
Few-mode fiber amplifier is widely under study to overcome the issue of internet traffic in optical communication. This article proposes annulus core few-mode erbium doped fiber (FM-EDF) with annulus or extra annulus doping for amplification of the LP01,
Gaur, Ankita, Rastogi, Vipul
core   +1 more source

Measuring absolute spectral radiance using an Erbium Doped Fibre Amplifier

, 2012
We describe a method to measure the spectral radiance of a source in an absolute way without the need of a reference. Here we give the necessary detail to allow for the device to be reproduced from standard fiber-optic components.
Gisin, Nicolas, Guerreiro, Thiago, Monteiro, Fernando, Sanguinetti, Bruno, Zbinden, Hugo   +4 more
core   +2 more sources

Experimental Measurement of Absorption Coefficients for Effective Erbium-Doping Concentration to Optimize Few-Mode Erbium-Doped Fiber Amplifiers with Low Differential Mode Gain

Photonics, 2021
According to the analytical expression for modal gain of few-mode erbium-doped fiber amplifiers (FM-EDFAs), we propose a method of measuring the absorption loss coefficients of few-mode signals in few-mode erbium-doped fibers (FM-EDFs) by extrapolating ...
Yan Xu, Baojian Wu, Xinrui Jiang, Haomiao Guo, Feng Wen   +4 more
doaj   +1 more source

Compact graphene mode-locked wavelength-tunable erbium-doped fiber lasers: from all anomalous dispersion towards all normal dispersion

, 2010
Soliton operation and soliton wavelength tuning of erbium-doped fiber lasers mode locked with atomic layer graphene was experimentally investigated under various cavity dispersion conditions.
Akhmediev, B. Lin, Bao, Bao, Chen, D.Y. Tang, Geim, H. Zhang, K.P. Loh, Kong, L.M. Zhao, Lin, Liu, Liu, Luo, Nelson, Newson, Q.L. Bao, S.C. Tjin, Tan, Tang, Wang, Wang, Wise, Xia, Zhang, Zhang, Zhang, Zhang, Zhang, Zhang   +30 more
core   +1 more source

Optimization of Erbium-Doped Fiber to Improve Temperature Stability and Efficiency of ASE Sources

Photonics
The ASE (Amplified Spontaneous Emission) light source, based on erbium-doped fiber (EDF), is a broadband light source with advantages such as high power, excellent temperature stability, and low coherent light generation.
Jia Guo, Hao Zhang, Wenbin Lin, Wei Xu
doaj   +1 more source

Strong Linewidth Reduction by Compact Brillouin/Erbium Fiber Laser

IEEE Photonics Journal, 2014
We demonstrate the strong linewidth reduction by a compact Brillouin/erbium fiber laser (BEFL), in which 4-m erbium-doped fiber (EDF) acts as both the Brillouin and linear gain media.
Mo Chen, Zhou Meng, Jianfei Wang, Wei Chen   +3 more
doaj   +1 more source

Continuously Tunable Erbium-Doped Fiber Ring Laser Using Fiber Bragg Grating

International Islamic University Malaysia Engineering Journal, 2012
An efficient tunable erbium-doped fiber (EDF) ring laser utilizing a single fiber Bragg grating (FBG) and an optical circulator is investigated. The laser demonstrates a threshold of 3.43 mW and a slope efficiency of 12.5%.
S. W. Harun H. Ahmad and P. Poopalan
doaj   +1 more source

Quantum cloning with an optical fiber amplifier [PDF]

, 2002
It has been shown theoretically that a light amplifier working on the physical principle of stimulated emission should achieve optimal quantum cloning of the polarization state of light.
Grégoire Ribordy, Hugo Zbinden, K. Shimoda, Nicolas Gisin, P. W. Milonni, Sylvain Fasel, Valerio Scarani, W. E. Lamb, W. K. Wootters   +8 more
core   +3 more sources

A MHz−Level Swept Source by Time Stretching the Shot−Noise Limited Supercontinuum Based on a Mode−Locked Laser and the Application in Optical Coherence Tomography

Laser &Photonics Reviews, Volume 19, Issue 22, November 19, 2025.
This work pioneers a 5.7 MHz all−fiber mode−locked laser−based broadband swept−source OCT system, achieving record−breaking performance: 11.4 µm axial resolution and 119 mm detection range. The system demonstrates exceptional coherence and stability, overcoming traditional trade−off between imaging speed and detection range.
Laiyang Dang, Wenhao Zhu, Shuyuan Zhu, Yujia Li, Yihuan Shi, Qian Li, Feng Li, Dongmei Huang   +7 more
wiley   +1 more source

Radiation-Resistant Er-Doped Fiber Based on Ge-Ce Co-Doping

IEEE Photonics Journal, 2022
We investigated the radiation responses of Ge-Ce co-doped erbium-doped fibers (EDFs) under gamma radiation with a dose up to 1000 Gy and a dose rate of 0.2 Gy/s.
Chi Cao, Zhimu Gu, Qiang Qiu, Le He, Yingbo Chu, Yingbin Xing, Nengli Dai, Jinyan Li   +7 more
doaj   +1 more source