Results 61 to 70 of about 356 (134)

Observation of Raman Gain in Reduced Length of Bismuth Erbium Doped Fiber [PDF]

Journal of Optoelectronical Nanostructures, 2020
Raman amplification of a 49 cm Bismuth oxide (Bi2O3) as a nonlinear gainmedium based erbium doped fiber amplifier (EDFA) is reported in new and compactdesign in near infrared spectral regions.
شریفه شاهی, PARVANE MARNANI, mohsen ranjbaran, sulaiman harun   +3 more
doaj  

Broad, Tunable and Stable Single-Frequency Erbium Fiber Compound-Ring Lasers Based on Parallel and Series Structures in L-Band Operation

Photonics
In this demonstration, we present two erbium-doped fiber (EDF) lasers, with series and parallel three sub-ring configurations, respectively, to achieve tunable channel output and stable single longitudinal mode (SLM) operation in the L-band range.
Yu-Ting Lai, Lan-Yin Chen, Teng-Yao Yang, Tsu-Hsin Wu, Chien-Hung Yeh, Kuan-Ming Cheng, Chun-Yen Lin, Chi-Wai Chow, Shien-Kuei Liaw   +8 more
doaj   +1 more source

Stable and Tunable Erbium Ring Laser by Rayleigh Backscattering Feedback and Saturable Absorber for Single-Mode Operation

Quantum Beam Science
This work demonstrates a high-quality erbium-doped fiber (EDF) ring laser in the L-band gain range by combining the Rayleigh backscattering (RB) feedback signal and unpumped EDF induced saturable absorber (SA) filter. The optical filter effect induced by
Chien-Yu Liao, Yu-Hsin Kao, Ying-Zhen Chen, Kuan-Ming Cheng, Chun-Yen Lin, Tsu-Hsin Wu, Teng-Yao Yang, Chien-Hung Yeh   +7 more
doaj   +1 more source

Graphene-Oxide-Based Saturable Absorber for All-Fiber Q-Switching With a Simple Optical Deposition Technique

IEEE Photonics Journal, 2012
A Q-switched erbium-doped fiber laser (EDFL) incorporating a graphene-oxide-based saturable absorber (SA) is proposed and demonstrated. The SA is fabricated by first dissolving graphene oxide nanopowder in water and subsequently using the thermophoresis ...
H. Ahmad, F. D. Muhammad, M. Z. Zulkifli, S. W. Harun   +3 more
doaj   +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

Study of Random Lasing in High-Power Narrow-Band ASE Sources

IEEE Photonics Journal
This study proposes and experimentally validates a high-power, narrow-spectrum amplified spontaneous emission (ASE) source that effectively suppresses random lasing while maintaining a narrow band.
Jinjing Xie, Xiaobin Xu, Fuyu Gao, Ningfang Song, Qifeng Zuo   +4 more
doaj   +1 more source

Silicon-Micro-Ring Resonator-Based Erbium Fiber Laser With Single-Longitudinal-Mode Oscillation

IEEE Photonics Journal, 2018
In this paper, we propose and experimentally illustrate a wavelength-switchable erbium-doped fiber (EDF) dual-ring (DR) laser with stable single-longitudinal-mode (SLM) oscillation.
Chien-Hung Yeh, Hao-Yun Cheng, Yuan-Chia Chang, Chi-Wai Chow, Jing-Heng Chen   +4 more
doaj   +1 more source

A New Design and Fabrication of Tapered Fiber-Based Loop Mirror as a Gain Flattened Erbium Doped Fiber Amplifier

Majlesi Journal of Electrical Engineering
The purpose of this study is flattening the amplified spontaneous emission (ASE) spectrum based on an erbium-doped fiber (EDF) by using a standard fiber-based loop mirror (FLM) and tapered fiber.
Yalda Ghorbani, Sh. Shahi
doaj  

Temperature-Dependent Performance Optimization of a Filtered ASE Source Employing Low-Concentration Erbium-Doped Fiber

Quantum Beam Science
Research on the thermal stability of amplified spontaneous emission (ASE) has mostly focused on broadband spectra. High-precision fiber optic gyroscopes (FOGs), however, require spectrally filtered sources.
Wei Liu, Jianming Liu, Wei Xu, Jia Guo
doaj   +1 more source

Investigation of Intra-Cavity SPR Sensor Based on Erbium-Doped Fiber Laser

IEEE Photonics Journal
In this paper, an intra-cavity SPR sensor based on erbium-doped fiber (EDF) laser is proposed to achieve higher sensitivity for detecting analyte refractive indices. A liquid-core fiber-based SPR sensor is first designed to match the operating wavelength
Ge Meng, Nannan Luan, Hao He, Fan Lei, Jianfei Liu   +4 more
doaj   +1 more source