Results 31 to 40 of about 2,658 (232)

Vertical Cavity Surface Emitting Laser Performance Maturing through Machine Learning for High-Yield Optical Wireless Network

Micromachines, 2022
The high-yield optical wireless network (OWN) is a promising framework to strengthen 5G and 6G mobility. In addition, high direction and narrow bandwidth-based laser beams are enormously noteworthy for high data transmission over standard optical fibers.
Ammar Armghan, Khaled Aliqab, Farman Ali, Fayadh Alenezi, Meshari Alsharari   +4 more
doaj   +1 more source

Optical tuning of vertical-cavity surface-emitting laser side-pumped neodymium-doped yttrium aluminum garnet laser cavity

High Power Laser Science and Engineering
High-power 808 nm vertical-cavity surface-emitting laser (VCSEL) chips have unique characteristics for neodymium-doped yttrium aluminum garnet (Nd:YAG) laser pumping compared with conventional edge-emitting laser bars, including a chip surface with high ...
Yang Li, Chuanchuan Li, Xiaolang Qiu, Chongxian Yuan, Yongli Wang, Xin Wei, Lianghui Chen   +6 more
doaj   +1 more source

Low Thermal Crosstalk 808-nm VCSEL Arrays With Nonlinear Mesa Configuration

IEEE Photonics Journal, 2018
In this paper, we demonstrated vertical-cavity surface-emitting laser (VCSEL) arrays with improved thermal stability by arranging the mesa distribution within the array in a nonlinear configuration.
Chuyu Zhong, Xing Zhang, Werner Hofmann, Yongqiang Ning, Lijun Wang   +4 more
doaj   +1 more source

Gigahertz circular polarization oscillations in spin-polarized vertical-cavity surface-emitting lasers

, 2010
We analyze ultrafast circular polarization oscillations in a commercial vertical-cavity surface-emitting laser after spin injection at room temperature. The circular polarization exhibits faster dynamics than the intensity and longer persistence than the
Hofmann, M. R., M. R. Hofmann, H. Jaehme, Soldat, H., Jaehme, H., Ackemann, T., N. C. Gerhardt, H. Soldat, Gerhardt, N. C., Li, M., M. Li, T. Ackemann   +11 more
core   +1 more source

VCSEL intrinsic response extraction using T-Matrix formalism [PDF]

, 2009
We present a new method to remove the parasitics contribution to the VCSEL chip response, in order to obtain the intrinsic S21 behavior. The on-chip VCSEL is defined as two cascaded two-port subsystems representing the electrical access and the VCSEL ...
Sirbu, A., Iakovlev, Vladimir, Bacou, A., Rissons, A., Iakovlev, V., Bacou, Alexandre, Mollier, Jean-Claude, Kapon, Eli, Kapon, E., Hayat, A., Mollier, J.C., Rissons, Angélique, Sirbu, Alexei, Hayat, Ahmad   +13 more
core   +1 more source

Image Transmission Based on Spiking Dynamics of Electrically Controlled VCSEL-SA Neuron

Photonics, 2021
Based on the spiking dynamics of the electrically controlled vertical-cavity surface-emitting laser with an embedded saturable absorber (VCSEL-SA), we propose an image transmission system using two unidirectionally coupled VCSEL-SAs and numerically ...
Min Ni, Xiaodong Lin, Xi Tang, Ziye Gao, Luyao Xiao, Jun Wang, Fan Ma, Qiulan Zheng, Tao Deng   +8 more
doaj   +1 more source

Self-pulsing dynamics in a cavity soliton laser

, 2010
The dynamics of a broad-area vertical-cavity surface-emitting laser (VCSEL) with frequency-selective feedback supporting bistable spatial solitons is analyzed experimentally and theoretically. The transient dynamics of a switch-on of a soliton induced by
Oppo, G. -L., Radwell, N., W. J. Firth, Firth, W. J., G.-L. Oppo, Ackemann, T., N. Radwell, C. McIntyre, McIntyre, C., T. Ackemann   +9 more
core   +1 more source

Lasing from active optomechanical resonators [PDF]

, 2014
This study was funded by the Deutsche Forschungsgemeinschaft (project BA 1549/14-1), the State of Bavaria and the Ukrainian State Fund for Fundamental Researches (programme SFFR-DFG). A.V.A.
Akimov, A.V., Yakovlev, D. R., Akimov, A. V., C. Brüggemann, M. Bayer, H�fling, S., Glavin, B. A., Schneider, C., Glavin, B.A., S. Höfling, Höfling, S., A. V. Akimov, D. R. Yakovlev, J. Tepper, Tepper, J., Czerniuk, T., T. Czerniuk, Bayer, M., C. Schneider, Brüggemann, C., S. Brodbeck, B. A. Glavin, Brodbeck, S., Kamp, M., Yakovlev, D.R., M. Kamp, Br�ggemann, C.   +26 more
core   +1 more source

The Vertical-Cavity Surface Emitting Laser (VCSEL) and Electrical Access Contribution [PDF]

, 2011
This chapter aims at highlighting the influence of the electrical access of different kinds of Vertical-Cavity Surface-Emitting Laser (VCSEL) (Rissons & Mollier, 2009). By presenting an overview of electrical equivalent circuit modeling and characterization for the VCSEL chip, based on the Scattering parameters, an overview of the VCSEL performance is ...
Angelique Rissons, Jean-Claude Mollier
openaire   +1 more source

Optical glucose monitoring using vertical cavity surface emitting lasers (VCSELs) [PDF]

SPIE Proceedings, 2009
Diabetes Mellitus is a common chronic disease that has become a public health issue. Continuous glucose monitoring improves patient health by stabilizing the glucose levels. Optical methods are one of the painless and promising methods that can be used for blood glucose predictions.
Fard, Sahba Talebi, Hofmann, Werner, Fard, Pouria Talebi, Kwok, Ezra, Amann, Markus-Christian, Chrostowski, Lukas   +5 more
openaire   +1 more source