Results 101 to 110 of about 6,513 (222)

Parametric Analysis of Spin-Polarized VCSELs

, 2009
Calculations of spin-injected vertical-cavity surface-emitting lasers (VCSELs) are presented using an efficient algorithm for solution of the steady-state rate equations in the spin-flip model.
Alexandropoulos, Dimitris, Adams, Michael J   +1 more
core   +1 more source

Low Spectral Width High-Speed VCSELs

, 2011
The transmission distance of high-speed multimode 850 nm VCSELs is currently limited by modal dispersion. A design and process to fabricate high-speed VCSELs with a reduced spectral width using a surface relief technique are ...
Haglund, Åsa, Gustavsson, Johan, K\uf6gel, Benjamin, Haglund, \uc5sa, Haglund, Erik, Westbergh, Petter, Larsson, Anders, Gustavsson, Johan S., Kögel, Benjamin   +8 more
core  

Brightness enhancement in Non-Hermintian VCSELs

, 2019
Vertical Cavity Surface Emitting lasers (VCSELs) are compact and efficient light sources useful for a variety of applications. However, due to lack of a transverse mode control mechanism, such lasers suffer from poor spatial beam quality, intrinsic ...
Waseem Ahmed, Waqas, Herrero Simon, Ramon, Botey, Muriel, Botey Cumella, Muriel, Staliunas, Kestutis, Ahmed, Waqas Waseem, Wu, Ying, Herrero, Ramon   +7 more
core   +1 more source

VCSELs resurgent

III-Vs Review, 2004
Whatever the viewpoint on the state of play in the telecom/datacom marketplace, it is undeniably the case that the VCSEL is here to stay. Moreover, the potential of this laser diode family is only beginning to be exploited. Much will depend on factors such as materials and device technology, applications and competition in the market from other laser ...
openaire   +1 more source

VCSELs for neuronal dynamics emulation

, 2012
We report a novel approach based upon Vertical Cavity Surface Emitting Lasers (VCSELs) to reproduce a wide range of dynamics observed in biological neurons on a much faster time scale.
Hurtado, A, A. Hurtado, Schires, K, K. Schires, I.D. Henning, Henning, ID, Adams, MJ, M.J. Adams   +7 more
core   +1 more source

High-Temperature Continuous-Wave Single-Mode Operation of 1.3 mu m p-Doped InAs-GaAs Quantum-Dot VCSELs

, 2009
In this letter, we have demonstrated continuous-wave single-mode operation of 1.3-mu m InAs-GaAs quantum-dot (QD) vertical-cavity surface-emitting lasers (VCSELs) with p-type modulation-doped QD active region from 20 degrees C to 60 degrees C.
Zhao LJ, Tong CZ, Xu DW Nanyang Technol Univ Sch Elect & Elect Engn Singapore 639798 Singapore. E-mail Address: n060085@ntu.edu.sg, Ding Y, ljzhao@red.semi.ac.cn, cztong@ntu.edu.sg, esfyoon@ntu.edu.sg, Xu DW, ewjfan@ntu.edu.sg, Fan WJ, Yoon SF, yding@ntu.edu.sg   +11 more
core  

Ultrafast Directional Beam Switching in Coupled VCSELs

, 2001
We propose a new approach to performing ultrafast directional beam switching using two coupled Vertical-Cavity Surface-Emitting Lasers (VCSELs). The proposed strategy is demonstrated for two VCSELs of 5.6 microns in diameter placed about 1 micron apart ...
Ning, Cun-Zheng, Goorjian, Peter
core  

Strong Lateral Mode Confinement by Embedding SiO₂ Nanospheres in the DBRs of GaN-Based VCSELs. [PDF]

Micromachines (Basel)
Chen H, Lei M, Meng L, Chu Z, Chen W, Hu X.   +5 more
europepmc   +1 more source

Ultrafast Random Number Generation Using Broadband Polarization Chaos in QD Spin-VCSELs. [PDF]

Sensors (Basel)
Tselios C, Georgiou P, Politi CT, Alexandropoulos D.   +3 more
europepmc   +1 more source

Self-Sustained Ultrafast Pulsation in Coupled VCSELs

, 2001
High frequency, narrow-band self-pulsating operation is demonstrated in two coupled vertical-cavity surface-emitting lasers (VCSELs). The coupled VCSELs provide an ideal source for high-repetition rate (over 40 GHz), sinusoidal-like modulated laser ...
Ning, Cun-Zheng
core