Results 31 to 40 of about 6,564 (184)

Coupled fiber taper extraction of 1.53 um photoluminescence from erbium doped silicon nitride photonic crystal cavities [PDF]

, 2010
Optical fiber tapers are used to collect photoluminescence emission at ~1.5 um from photonic crystal cavities fabricated in erbium doped silicon nitride on silicon. Photoluminescence collection via fiber taper is enhanced 2.5 times relative to free space,
Akahane, Birks, Colace, Dong, Fidaner, Gary Shambat, Gong, Grillet, Hwang, Hwang, Hwang, Iwamoto, Jelena Vučković, Jesse Lu, Jung, Kim, Lee, Liao, Luca Dal Negro, Makarova, Manolatou, Miller, Rui Li, Selçuk Yerci, Srinivasan, Vuckovic, Yerci, Yiyang Gong   +27 more
core   +2 more sources

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

L-Band Erbium-Doped Fiber Optimization and Transmission Investigation

Photonics
The optical spectrum resource in the C-band has been used up due to dense wavelength division multiplexing (DWDM). Because of devices’ compatibility with both the C-band and the L-band, the L-band is a good choice for further capacity expansion ...
Kaihua Hu, Li Pei, Jianshuai Wang, Zhouyi Hu, Wenxuan Xu, Long Zhang, Jing Li, Li Zhong   +7 more
doaj   +1 more source

An investigation of the temperature dependency of the relative population inversion and the gain in EDFAs by the modified rate equations

, 2004
The dependence of the relative population inversion in Er3+-doped fiber amplifiers (EDFAs) upon temperature and cross sections, taking into account the amplified spontaneous emission (ASE), are investigated theoretically by the modified rate equation ...
Barnes, Cüneyt Berkdemir, Desurvire, Desurvire, Giles, Jaraba, Jarabo, Kimura, Lee, Lee, Mao, McCumber, McCumber, Miniscalco, Nakaji, Novak, Sedat Özsoy, Yamada, Yamada, Yariv, Zech   +20 more
core   +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

Coupling of Er3+ ions and Plasmonic Modes in Vertical Nanocavities for Spectral Broadening in Telecom Bands

Advanced Materials Technologies, EarlyView.
Left: Illustration of the glass & nanostructures system and the NIR emission at 1.5 µm, where the colored spheres represent the Er3+ ions within the doped glass. Right: Representation of the Stark splitting of the 4I13/2 and 4I15/2 manifolds of the Er3+, illustrating how the plasmonic modes facilitate the emission from the broader Stark manifold ...
Gaston Lozano Calderón, Víctor Anthony García Rivera, Stéphan Cagnon, Souleymane Toubou Bah, Younès Messaddeq, Euclydes Marega Junior   +5 more
wiley   +1 more source

An improved delayed self-heterodyne interferometer for linewidth measurements [PDF]

, 1992
The authors demonstrated a delayed self-heterodyne interferometer with a recirculating delay, in which loss was partially compensated by an erbium-doped fiber amplifier.
Dawson, Jay W., Park, Namkyoo, Vahala, Kerry J.   +2 more
core   +1 more source

Spatial‐Wavelength Multiplexing Error‐Controlled Photonic Analog Computing System

Advanced Science, EarlyView.
A novel photonic integrated circuit prototype implementing the concept of general‐purpose analog computing and demonstrate its capability in radio frequency applications. The chip features a multichannel architecture and performs fully optical analog computation with frequency‐domain parallel processing. An FPGA‐based error‐correction algorithm aims to
Tao Zhu, Bowen Zhu, Shicheng Zhang, Keren Li, Xianchen Wu, Yazhi Pi, Jie Yan, Daigao Chen, Bingli Guo, Xi Xiao, Lei Wang, Xiaochuan Xu, Xuwei Xue, Shanguo Huang, Zizheng Cao, Shaohua Yu   +15 more
wiley   +1 more source

EDFA Design and Analysis for WDM Optical Systems Based on Modal Multiplexing

Journal of Microwaves, Optoelectronics and Electromagnetic Applications
Modal multiplexing (MDM) is a core technology to allow a capacity increase in modern optical systems. However, in MDM links, the amplified WDM signal suffers not only from lack of spectral gain equalization but also from unequal modal gain.
Adolfo Fernandes Herbster, Murilo Araújo Romero   +1 more
doaj   +1 more source

Efficient superfluorescent light sources with broad bandwidth

, 1997
We demonstrate various efficient broad-band light sources at ~1µm wavelength with a 3dB bandwidth of up to 65nm at 108mW output power, based on rare-earth doped silica fibers and a simple adjustable spectral ...
Hanna, D.C., Nilsson, J., Paschotta, R., Tropper, A.C.   +3 more
core   +1 more source