Photonic crystals in the optical regime—past, present and future

TF Krauss, M Richard - Progress in Quantum electronics, 1999 - Elsevier
During the last decade, photonic crystals, also known as photonic microstructures or
photonic bandgap structures, have matured from an intellectual curiosity concerning …

Direct-drive laser fusion: Status and prospects

SE Bodner, DG Colombant, JH Gardner… - Physics of …, 1998 - pubs.aip.org
Techniques have been developed to improve the uniformity of the laser focal profile, to
reduce the ablative Rayleigh–Taylor instability, and to suppress the various laser–plasma …

Efficient high-power laser diodes

P Crump, G Erbert, H Wenzel, C Frevert… - IEEE Journal of …, 2013 - ieeexplore.ieee.org
High-power broad-area diode lasers are the most efficient light sources, with 90-μm stripe
GaAs-based 940-980 nm single emitters delivering> 10 W optical output at a power …

High-power truncated-inverted-pyramid light-emitting diodes exhibiting % external quantum efficiency

MR Krames, M Ochiai-Holcomb, GE Höfler… - Applied physics …, 1999 - pubs.aip.org
A truncated-inverted-pyramid (TIP) chip geometry provides substantial improvement in light
extraction efficiency over conventional AlGaInP/GaP chips of the same active junction area …

Multi-junction cascaded vertical-cavity surface-emitting laser with a high power conversion efficiency of 74%

Y Xiao, J Wang, H Liu, P Miao, Y Gou… - Light: Science & …, 2024 - nature.com
High electro-optical conversion efficiency is one of the most distinctive features of
semiconductor lasers as compared to other types of lasers. Its further increase remains a …

High-power (> 10 W) continuous-wave operation from 100-μm-aperture 0.97-μm-emitting Al-free diode lasers

A Al-Muhanna, LJ Mawst, D Botez… - Applied Physics …, 1998 - pubs.aip.org
By incorporating a broad transverse waveguide (1.3 μm) in 0.97-μm-emitting InGaAs
(P)/InGaP/GaAs separate-confinement-heterostructure quantum-well diode-laser structures …

73% CW power conversion efficiency at 50 W from 970 nm diode laser bars

M Kanskar, T Earles, TJ Goodnough, E Stiers, D Botez… - Electronics Letters, 2005 - IET
970 nm emitting diode laser bars of broad-waveguide design have been optimised for
maximum power conversion efficiency (PCE). 73% PCE at 50 W CW output power is …

Operating principles of VCSELs

R Michalzik, KJ Ebeling - Vertical-Cavity Surface-Emitting Laser Devices, 2003 - Springer
For some time already, vertical-cavity surface-emitting lasers (VCSELs) have emerged from
being a laboratory curiosity to an object of industrial mass production. The main applications …

Degradation characteristics and mechanism of high speed 850 nm vertical-cavity surface-emitting laser during accelerated aging

J Zhang, W Liao, X Wang, G Lu, S Yang, Z Wei - Photonics, 2022 - mdpi.com
The degradation process of Vertical-cavity Surface-emitting lasers with high speed and a
central wavelength at 850 nm is investigated via constant-current accelerated aging …

High-power broad-area diode lasers and laser bars

G Erbert, A Bärwolff, J Sebastian, J Tomm - High-Power Diode Lasers …, 2000 - Springer
This review presents the basic ideas and some examples of the chip technology of high-
power diode lasers (λ= 650 nm− 1060 nm) in connection with the achievements of mounted …