Results 1 to 10 of about 2,039 (135)

Flat Multi-Wavelength Brillouin Erbium-Doped Fiber Laser Based on a Sagnac Loop for High-Sensitivity Sensor [PDF]

Sensors, 2022
We have demonstrated the use of a flat multi-wavelength Brillouin erbium-doped fiber laser (MWBEFL) based on a Sagnac loop with an unpumped erbium-doped fiber (Un-EDF) as a high-sensitivity sensor.
Liang Chen, Jian He, Yi Liu
doaj   +2 more sources

Multiple wavelength generation using a compacted hybrid Raman / Bi-EDF amplifier

EPJ Web of Conferences, 2013
A multiple wavelength laser source is generated by a Brillouin seed signal and a compacted hybrid Raman / bismuth-based erbium doped fiber amplifier (Bi-EDFA) in a linear cavity.
Shirazi M. R., Biglary M.
doaj   +3 more sources

Few-Mode Erbium-Doped Fiber with Three-Layer Center-Recessed Doping for Gain Equalization [PDF]

Sensors
We propose a design method for few-mode erbium-doped fiber (FM-EDF) incorporating stratified doping. In the simulation design, the FM-EDF effectively reduces the differential mode gain (DMG) through the utilization of stratified doping.
Shengchen Bao, Yu Cheng, Yi Tang, Ming Chen, Shijie Deng, Libo Yuan   +5 more
doaj   +2 more sources

Comparison of 1480 nm and 980 nm-pumped Gallium-Erbium fiber amplifier [version 2; peer review: 1 approved, 2 approved with reservations]

F1000Research, 2021
Background: One way to reduce the length of the gain medium in Erbium-Doped Fiber Amplifier (EDFA) is by doping the fiber core with a high concentration of Erbium.
Tuan Ainin Sofea Tuan Mohd Marzuki, Amilia Mansoor, Siti Azlida Ibrahim, Hairul Azhar Abdul Rashid, Nasr Y. M. Omar   +4 more
doaj   +1 more source

Flat-gain wide-band erbium doped fiber amplifier by combining two difference doped fibers [PDF]

Journal of the European Optical Society-Rapid Publications, 2015
A new erbium-doped fibre amplifier (EDFA) is demonstrated using a combination of newly developed Erbium Zirconia co-doped fiber (Zr-EDF) and the commercial silica-based Erbium-doped fiber (Si-EDF) as the gain medium.
Hamida B. A., Azooz S. M., Jasim A. A., Eltaif T., Ahmad H., Khan S., Harun S. W.   +6 more
doaj   +1 more source

Multiple-Ring-Core FM-EDF for Weakly-Coupled MDM Amplification With Low Differential Modal Gain

IEEE Photonics Journal, 2021
Recently weakly-coupled mode-division multiplexing (MDM) transmission systems and networks based on ultralow-modal-crosstalk few-mode fiber (FMF) have attracted much interest, for which optical amplification technologies with low modal crosstalk and two ...
Jinglong Zhu, Mingqing Zuo, Yu Yang, Dawei Ge, Lei Shen, Zhangyuan Chen, Yongqi He, Juhao Li   +7 more
doaj   +1 more source

Two Stage Three Pass EDFA Design and EDFA Parameters’ Optimization

Gazi Üniversitesi Fen Bilimleri Dergisi, 2020
In this study, two stage and triple pass erbium doped fiber amplifier (EDFA) is designed and EDFA’s input signal wavelengths and powers, erbium doped fiber (EDF) lengths, and pump laser powers are optimized.
Murat YÜCEL, Emrah Yiğit
doaj   +1 more source

Room-Temperature Power-Stabilized Narrow-Linewidth Tunable Erbium-Doped Fiber Ring Laser Based on Cascaded Mach-Zehnder Interferometers with Different Free Spectral Range for Strain Sensing [PDF]

, 2020
An automatically power-stabilized (with power fluctuation
Bai, C., Chen, N-K., Grattan, K. T. V., Han, H. K., Liaw, S. K., Liu, C., Rahman, B. M., Tian, Z., Zhang, L., Zhou, H.   +9 more
core   +1 more source

A Multi-Layer Erbium-Doped Air-Hole-Assisted Few-Mode Fiber with Ultra-Low Differential Modal Gain

Photonics, 2022
The air-hole assisted few-mode fiber (AH-FMF) enables modal intensity balance and offers a profound prospect in gain equalization with the combination of adaptive ion doping.
Zhiqi Li, Li Pei, Jingjing Zheng, Jianshuai Wang, Wenxuan Xu, Tigang Ning, Jing Li   +6 more
doaj   +1 more source

Wideband and flat gain series erbium doped fiber amplifier using hybrid active fiber with backward pumping distribution technique

Results in Physics, 2019
A modern wideband and flat gain erbium-doped fiber amplifier (EDFA) is suggested and accomplished, by employing a recently fabricated hafnia-bismuth-erbium doped fiber (HB-EDF) and zirconia-erbium doped fiber (Zr-EDF) as a hybrid active fiber.
Alabbas A. Al-Azzawi, Aya A. Almukhtar, B.A. Hamida, S. Das, A. Dhar, M.C. Paul, H. Ahmad, S.W. Harun   +7 more
doaj   +1 more source