Results 121 to 130 of about 321,155 (295)

Few-mode Erbium-doped Fiber Amplifier

13th International Conference on Fiber Optics and Photonics, 2016
Few-mode fiber is emerging as an attractive option in an SDM system. EDFA for a few-mode fiber has an issue of differential modal gain (DMG) among its modes. We present EDFA designs to obtain customized DMG.
openaire   +2 more sources

Impact of Sustainable Binders Based on Lignin and Collagen on the Volume Stability and Mechanical Properties of MgO‐C Refractories with MgO‐C Recyclates

Advanced Engineering Materials, EarlyView.
Collagen hydrolysate is evaluated as a sustainable binder for MgO‐C refractories. Its thermally induced cross‐linking and gas release lead to expansion and cracking in large bricks, but tailored batches with lignin, recyclates, or fine graphite improve the gas release while thermal treatment and stability.
Till M. J. Stadtmüller, Florian Kerber, Kirsten Moritz, Steffen Dudczig, Konstantin Kraushaar, Thomas Schemmel, Jana Hubálková, Patrick Gehre, Christos G. Aneziris   +8 more
wiley   +1 more source

Design of Self-Matching Photonic Lantern for High-Order Transverse-Mode Laser Systems

Photonics
High-order transverse-mode lasers have important potential application value in many fields. To address the current issue of the limited controllability of modes in high-order transverse-mode lasers, we have designed a self-matching photonic lantern ...
Li Zhao, Wei Li, Yunhao Chen, Enming Zhao, Jianing Tang   +4 more
doaj   +1 more source

High-resolution and broadband all-fiber spectrometers

, 2014
The development of optical fibers has revolutionized telecommunications by enabling long-distance broad-band transmission with minimal loss. In turn, the ubiquity of high-quality low-cost fibers enabled a number of additional applications, including ...
Alam, Mansoor, Cao, Hui, Redding, Brandon, Seifert, Martin   +3 more
core   +1 more source

Multifunctional Crushing and Piezoresistive Self‐Sensing in Conductive Epoxy/CNT‐Coated Polyetherimide TPMS Lattices

Advanced Engineering Materials, EarlyView.
This study reports lightweight polyetherimide triply periodic minimal surfaces lattices coated with carbon nanotube‐reinforced epoxy that combine mechanical robustness with self‐sensing. The conformal coating enhances stiffness, strength and energy absorption while enabling reliable strain monitoring.
A. Triay, J. Schneider, P. Harrison, S. Kumar   +3 more
wiley   +1 more source

Analysis on the research progress of space division multiplexing in optical fiber communication

Dianxin kexue, 2017
The evolution of optical fiber communication technology is driven by the ceaseless growth of capacity demand of Internet.Space division multiplexing (SDM) based on multi-core fiber,few-mode fiber,few-mode multi-core fibers and orbital angular momentum ...
Junsen LAI, Rui TANG, Bingbing WU, Wenxuan WU, Hongfa LI, Guojun LIU, Wenyu ZHAO, Haiyi ZHANG   +7 more
doaj   +2 more sources

SOPHIE+: First results of an octagonal-section fiber for high-precision radial velocity measurements

, 2012
High-precision spectrographs play a key role in exoplanet searches and Doppler asteroseismology using the radial velocity technique. The 1 m/s level of precision requires very high stability and uniformity of the illumination of the spectrograph.
A. Santerne, Artigau, Avila, Avila, Bakos, Baranne, Barge, Bazot, Boisse, Boisse, Boisse, Bouchy, Bouchy, Bouchy, Bouchy, Brown, Brown, Butler, Butler, Chazelas, Cochran, Collier Cameron, Connes, Demory, Diaz, F. Bouchy, Fried, G. Hébrard, Gillon, Heacox, Heacox, Howard, Howard, Howard, Hunter, Hébrard, Hébrard, I. Boisse, L. Arnold, Loeillet, Maness, Martic, Mayor, Melo, Mosser, Moutou, Pepe, Pepe, Perruchot, Perruchot, R. F. Díaz, S. Perruchot, Santerne, Setiawan, Vogt, Walker, Wright, X. Delfosse   +57 more
core   +3 more sources

Surface Tension Measurement of Ti‐6Al‐4V by Falling Droplet Method in Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
In this article, the temperature‐dependent surface tension of free falling, oscillating Ti‐6Al‐4V droplets is investigated in both argon and monosilane doped, oxygen‐free atmosphere. Droplet temperature and oscillation are captured with one single high‐speed camera, and the surface tension is calculated with Rayleigh's formula.
Johannes May, Finn‐Lennard Janthur, Lena Kreie, Michael Müller, Sarah Seffer, Nick Schwarz, Jörg Hermsdorf, Thomas Hassel, Stefan Kaierle, Ludger Overmeyer   +9 more
wiley   +1 more source

Low computational complexity mode division multiplexed OFDM transmission over 130 km of few mode fiber

We demonstrate 337.5-Gb/s MDM-8QAM-OFDM transmission over 130 km of FMF. This confirms that OFDM can significantly reduce the required DSP complexity to compensate for differential mode delay, a key step towards real-time MDM ...
Adhikari, S., Alam, S.-U., Grüner-Nielsen, L., Hanik, N., Inan, B., Jansen, S.L., Jung, Y., Kuschnerov, M., Richardson, D.J., Sleiffer, V.A.J.M., Spinnler, B.   +10 more
core  

Sub-100-as timing jitter optical pulse trains from mode-locked Er-fiber lasers

, 2011
We demonstrate sub-100-attosecond timing jitter optical pulse trains generated from free-running, 77.6-MHz repetition-rate, mode-locked Er-fiber lasers.
Chang Hee Nam, Chur Kim, Cox, Haus, Hyoji Kim, Jungwon Kim, Kim, Kim, Kwangyun Jung, Namiki, Nicholson, Nugent-Glandorf, Paschotta, Schibli, Song, Song, Tae Keun Kim, Youjian Song   +17 more
core   +1 more source