Results 261 to 270 of about 6,091 (303)

Passive vertical cavity surface emitting lasers

IEEE Photonic Society 24th Annual Meeting, 2011
We have recently demonstrated a vertical cavity surface emitting laser (VCSEL) formed by a passive half-wavelength cavity combined with a quantum dot active region contained within a quarter-wavelength thick layer of the upper distributed Bragg reflector (DBR) [1].
A. M. Kasten, S. N. Brown, J. A. Lott, V. A. Shchukin, N. N. Ledentsov, K. D. Choquette   +5 more
openaire   +1 more source

Fusion bonding for vertical cavity surface-emitting lasers

OFC '98. Optical Fiber Communication Conference and Exhibit. Technical Digest. Conference Edition. 1998 OSA Technical Digest Series Vol.2 (IEEE Cat. No.98CH36177), 1998
Summary form only given. This talk summarizes current efforts in fusion bonding and the application of this technology to vertical- cavity surface-emitting lasers at Hewlett- Packard laboratories. We discuss electrical characteristics, carrier-concentration profiling and SIMS analyses through InP/GaAs junctions, and the development of 1300 nm VCSELs.
openaire   +2 more sources

A Vertical-Cavity Surface-Emitting Laser at Threshold

IEEE Photonics Technology Letters, 2006
Linewidth is measured over the threshold transition of a vertical-cavity surface-emitting laser and results are compared to a Fokker–Planck semiconductor laser model. The linewidth shows non monotonous behaviour at threshold similar to that previously observed in distributed feedback lasers.
Fordell, Thomas, Toffano, Zeno, Lindberg, Åsa Marie   +2 more
openaire   +2 more sources

Visible vertical-cavity surface-emitting laser

SPIE Proceedings, 1998
We have designed and fabricated the visible vertical-cavity surface-emitting lasers (VCSEL's) by using metalorganic vapor phase epitaxy (MOVPE). We use the 8 lambda optical cavities with 3 quantum wells in AlGaInP/AlGaAs red VCSEL's to reduce the drift leakage current and enhance the model gain in AlGaInP active region. The structure has a p-type stack
Peng Cheng, Xiaoyu Ma, Junhua Gao, Xuejun Kang, Qing Cao, Hongjie Wang, Liping Luo, Chunhui Zhang, Xiuling Lu, ShiMing Lin   +9 more
openaire   +1 more source

Lineshape of a vertical cavity surface emitting laser

Optics Communications, 2002
We report on the experimental study of the lineshape of an air-post GaAs/AlGaAs Vertical-Cavity Surface-Emitting Laser (VCSEL). The signal is obtained by heterodyne with a narrow linewidth extended-cavity laser. This technique allows to fully take into account the entire spectrum of frequency fluctuations.
S. VICIANI, M. GABRYSCH, MARIN, FRANCESCO, F. MONTI DI SOPRA, M. MOSER, K. GULDEN   +5 more
openaire   +3 more sources

Visible vertical-cavity surface-emitting lasers

Optical Society of America Annual Meeting, 1992
We report the operation of visible-light (670-630 nm) vertical-cavity surface-emitting lasers (VCSELs) in a photopumped structure. Visible VCSELs are a promising breakthrough for visible laser technology because of their surfacenormal operation, nonastigmatic output beams, ease of fabrication of closely spaced 1- and 2-dimensional arrays, and ease of ...
R. P. Bryan, R. P. Schneider, J. A. Lott, G. R. Olbright   +3 more
openaire   +1 more source

Vertical Cavity Surface Emitting Lasers

2022
openaire   +2 more sources

Vertical-cavity surface emitting lasers

Optics and Lasers in Engineering, 2000
Julian Cheng, Niloy K. Dutta
openaire   +2 more sources

Vertical-Cavity Surface-Emitting Lasers

2017
Tomasz Czyszanowski, Leszek Frasunkiewicz, Maciej Dems   +2 more
openaire   +2 more sources

Vertical-Cavity Surface-Emitting Lasers for Interconnects

2017
This chapter deals with the application of Vertical-Cavity Surface-Emitting Lasers (VCSELs) as directly-modulated light-sources in optical interconnects. It shows that VCSEL-based optical interconnects are going to replace the conventional copper-based technology.
openaire   +1 more source