Results 41 to 50 of about 6,091 (303)

High-Speed Buried Tunnel Junction Vertical-Cavity Surface-Emitting Lasers

IEEE Photonics Journal, 2010
InP-based, vertical-cavity surface-emitting lasers (VCSELs) utilizing a buried tunnel junction (BTJ) emitting at 1.55 μm with improved active region and reduced parasitics are demonstrated.
Werner Hofmann
doaj   +1 more source

Vertical-cavity surface-emitting laser with liquid crystal external cavity [PDF]

SPIE Proceedings, 2014
A tuneable external cavity consisting of a thin layer of nematic liquid crystal (LC) and a dielectric reflector is placed on the top of a vertical-cavity surface-emitting laser (VCSEL). By changing the voltage across the LC layer, the optical path length of the external cavity can be tuned.
Xie, Yi, Beeckman, Jeroen, Panajotov, Krassimir, Neyts, Kristiaan   +3 more
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Gain characteristics of In_0.60Ga_0.40As/In_0.53Al_0.20Ga_0.27As superlattice active regions for vertical-cavity surface-emitting lasers

Научно-технический вестник информационных технологий, механики и оптики
The results of investigation of the gain properties of 1300 nm vertical-cavity surface-emitting lasers active regions based on In0.60Ga0.40As/In0.53Al0.20Ga0.27As superlattices and threshold characteristics comparison of superlattices and highly lattice ...
P. E. Kopytov, V. V. Andryushkin, E. V. Pirogov, M. S. Sobolev, A. V. Babichev, Yu. M. Shernyakov, M. V. Maximov, A. V. Lyutetskiy, N. A. Pikhtin, L. Ya. Karachinsky, I. I. Novikov, Tian Sicong, A. Yu. Egorov   +12 more
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Contact Geometrical Study for Top Emitting 980 nm InGaAs/GaAsP Vertical-Cavity Surface Emitting Lasers

ARO-The Scientific Journal of Koya University, 2021
Geometrical contacts of a double mesa structure with 16 rows ×15 columns arrays of top emitting GaAs based 980 nm vertical cavity surface emitting lasers (VCSELs) are fabricated and characterized.
Faten A. Chaqmaqchee
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
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Supermode Si/III-V Lasers and Circular Bragg Lasers [PDF]

, 2010
Semiconductor lasers are arguably the most important component in optical communications. This thesis investigates two types of semiconductor lasers that are useful in integrated optics.
Sun, Xiankai
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Operation of an optical in-well-pumped vertical-external-cavity surface-emitting laser

, 2006
We report the operation of an optical in-well-pumped vertical-external-cavity surface-emitting laser. The laser delivers 1 W at 855 nm and is pumped with a cost-effective fiber-coupled laser diode emitting at 806 nm.
Ferguson, Allister I., McGinily, Stephen, Schmid, Marc, Ackemann, Thorsten, Zhang, Wei, Riis, Erling   +5 more
core   +1 more source

Long wavelength VCSEL-by-VCSEL optical injection-Locking [PDF]

, 2009
VCSEL-by-VCSEL optical injection-locking to obtain high cut-off frequencies of 1.3 μm Vertical-Cavity Surface-Emitting Lasers (VCSELs) is demonstrated. A detailed physical explanation of the underlying mechanism is presented.
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
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High-Brightness, High-Speed, and Low-Noise VCSEL Arrays for Optical Wireless Communication

IEEE Access, 2022
The development of high-speed and high-brightness vertical-cavity surface-emitting lasers (VCSELs), which can serve as an efficient light source for optical wireless communication (OWC), play a crucial role in growth of the next generation of wireless ...
Zuhaib Khan, Yung-Hao Chang, Te-Lieh Pan, Yaung-Cheng Zhao, Yen-Yu Huang, Chia-Hung Lee, Jui-Sheng Chang, Cheng-Yi Liu, Cheng-Yuan Lee, Chao-Yi Fang, Jin-Wei Shi   +10 more
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Polarization properties of vertical-cavity surface-emitting lasers

IEEE Journal of Quantum Electronics, 1997
This work supported in part by CYCIT, Spain, under Project TIC95/0563, DGICYT, Spain, under Project PB94-1167, UE96-0030, and the European Union under HCM Grant CHRX-CT-94-0594.
MARTIN REGALADO J., PRATI, FRANCO, SAN MIGUEL M., AND ABRAHAM N. B.   +3 more
openaire   +3 more sources