Results 71 to 80 of about 173,725 (252)

Efficient low-threshold lasers based on an erbium-doped holey fiber [PDF]

, 2005
We report experimental results on the continuous-wave lasers based on a small core erbium-doped holey fiber. In a simple Fabry-Perot-type cavity with high output coupling, we demonstrate low-threshold (0.55 mW) high slope-efficiency (57.3%) operation ...
Furusawa, K., Lee, J., Richardson, D., Sahu, J., Richardson, D.J., Monro, T., Monro, T.M., Kogure, T., Sahu, J.K., Lee, J.H.   +9 more
core   +1 more source

Narrow Linewidth 49 W All Fiber Linearly Polarized Picosecond Laser Operating at 1016 nm

IEEE Photonics Journal, 2022
An all fiber linearly polarized narrow linewidth pulsed fiber laser operating at 1016 nm is demonstrated in a master oscillator power amplification (MOPA) configuration.
Chao Zhang, Sheng-Ping Chen, Bo Li, Xiang-Ai Cheng   +3 more
doaj   +1 more source

Large Normal Dispersion Mode-Locked Erbium-Doped Fiber Laser

Fibers, 2019
We report on a passively mode-locked oscillator based on an erbium-doped dual concentric core fiber combining high normal dispersion and large mode area.
Mincheng Tang, Geoffroy Granger, Fabien Lesparre, Hongjie Wang, Kai Qian, Caroline Lecaplain, Jean-Louis Oudar, Yves Jaouen, Renaud Gabet, Dmitry Gaponov, Mikhail Likhachev, Thomas Godin, Sébastien Février, Ammar Hideur   +13 more
doaj   +1 more source

Mitigating mode instabilities by controllable mode beating excitation with a photonic lantern

Frontiers in Physics, 2023
In this study, a method of stabilizing the output beam of a large-mode-area fiber amplifier operating above the mode instability threshold is demonstrated. A mode control system based on the photonic lantern is used to excite dynamic mode beatings as the
Yao Lu, Zongfu Jiang, Zongfu Jiang, Zongfu Jiang, Hu Xiao, Hu Xiao, Hu Xiao, Zilun Chen, Zilun Chen, Zilun Chen, Man Jiang, Man Jiang, Man Jiang, Junyu Chai, Hao Yang, Lianchuang Ding, Dan Zhang, Dan Zhang, Dan Zhang, Jiangbin Zhang, Jiangbin Zhang, Jiangbin Zhang, Qiong Zhou, Qiong Zhou, Qiong Zhou, Wenguang Liu, Wenguang Liu, Wenguang Liu   +27 more
doaj   +1 more source

Large mode area fibers with asymmetric bend compensation

Optics Express, 2011
Fibers with asymmetrical bend compensation offer to completely remove the tradeoff between mode area and single-modedness, with potentially huge impact on high-power amplification. These fibers would be difficult to fabricate, but are the only fundamental-mode strategy that can remove the bend-distortion limitations on mode-area scaling.
openaire   +2 more sources

Bending performance of large mode area multi-trench fibers [PDF]

Optics Express, 2013
Bending performance of the Multi-trench Fibers (MTFs) has been investigated using the Finite Element Method. Numerical investigations show that MTFs can provide low-loss effective single mode operation under bent configuration, thanks to the resonant coupling of the Higher order Modes (HOMs).
Jain, Deepak, Baskiotis, Catherine, Sahu, Jayanta Kumar   +2 more
openaire   +3 more sources

Low-DMGD, Large-Effective-Area and Low-Bending-Loss 12-LP-Mode Fiber for Mode-Division-Multiplexing

IEEE Photonics Journal, 2019
We report the design of 12-LP-mode (21-spatial-mode) fiber with a low differential mode group delay (DMGD), a large effective area, and a low bending loss that is adapted to a mode-division-multiplexing system over the C+L band.
Huan Zhang, Jian Zhao, Zhiqun Yang, Guanju Peng, Zixiang Di   +4 more
doaj   +1 more source

Large mode area silicon microstructured fiber with robust dual mode guidance [PDF]

Optics Express, 2009
A silicon microstructured fiber has been designed and fabricated using a pure silica photonic bandgap guiding fiber as a 3D template for materials deposition. The resulting silicon fiber has a micron sized core but with a small core-cladding index contrast so that it only supports two guided modes.
Healy, N., Sparks, J.R., Petrovich, M.N., Sazio, P.J.A., Badding, J.V., Peacock, A.C.   +5 more
openaire   +3 more sources

Single Trench Fiber-Enabled High-Power Fiber Laser

Photonics
As a novel design of large-mode-area fiber, the single trench fiber (STF) providing high higher-order-mode suppression with a large mode area for the fundamental mode shows potential for high-power and high-brightness applications.
Yi An, Fengchang Li, Huan Yang, Xiao Chen, Liangjin Huang, Zhiping Yan, Min Jiang, Baolai Yang, Peng Wang, Zhiyong Pan, Zongfu Jiang, Pu Zhou   +11 more
doaj   +1 more source

Erbium:ytterbium co-doped large-core fiber laser with 297W continuous-wave output power

, 2007
We have demonstrated a high-power and high-efficiency erbium:ytterbium (Er:Yb) co-doped fiber laser that produces 297 W of continuous-wave output at 1567 nm.
Nilsson, J., Jayanta K. Sahu, Mike Lovelady, Piper, A., Johan Nilsson, David N. Payne, Yoo, S., R. Horley, Andy Piper, Payne, D.N., Lovelady, M., Christophe A. Codemard, Jeong, Y., Hickey, L.M.B., Andrew Harker, Yoonchan Jeong, Louise Hickey, Turner, P.W., Horley, R., P. W. Turner, Codemard, Christophe, Harker, A.T., Sahu, J.K., Seongwoo Yoo   +23 more
core   +1 more source