Low-spatial coherence electrically pumped red-emitting semiconductor laser

2018 ◽  
Author(s):  
Wanhua Zheng ◽  
Yufei Jia ◽  
Yufei Wang ◽  
Shao Yu Zhao ◽  
Linhai Xu ◽  
...  
Keyword(s):  
Semiconductor Laser ◽  
Spatial Coherence ◽  
Electrically Pumped

scholarly journals Electrically pumped semiconductor laser with low spatial coherence and directional emission

2019 ◽  
Vol 115 (7) ◽  
pp. 071101 ◽  
Author(s):  
Kyungduk Kim ◽  
Stefan Bittner ◽  
Yongquan Zeng ◽  
Seng Fatt Liew ◽  
Qijie Wang ◽  
...  
Keyword(s):  
Semiconductor Laser ◽  
Spatial Coherence ◽  
Directional Emission ◽  
Electrically Pumped

scholarly journals Low spatial coherence electrically pumped semiconductor laser for speckle-free full-field imaging

2015 ◽  
Vol 112 (5) ◽  
pp. 1304-1309 ◽  
Author(s):  
Brandon Redding ◽  
Alexander Cerjan ◽  
Xue Huang ◽  
Minjoo Larry Lee ◽  
A. Douglas Stone ◽  
...  
Keyword(s):  
Semiconductor Laser ◽  
High Speed ◽  
Spatial Coherence ◽  
Spectral Radiance ◽  
Laser Resonator ◽  
Full Field ◽  
Wide Range ◽  
Electrically Pumped ◽  
Laser Sources ◽  
Field Imaging

The spatial coherence of laser sources has limited their application to parallel imaging and projection due to coherent artifacts, such as speckle. In contrast, traditional incoherent light sources, such as thermal sources or light emitting diodes (LEDs), provide relatively low power per independent spatial mode. Here, we present a chip-scale, electrically pumped semiconductor laser based on a novel design, demonstrating high power per mode with much lower spatial coherence than conventional laser sources. The laser resonator was fabricated with a chaotic, D-shaped cavity optimized to achieve highly multimode lasing. Lasing occurs simultaneously and independently in ∼1,000 modes, and hence the total emission exhibits very low spatial coherence. Speckle-free full-field imaging is demonstrated using the chaotic cavity laser as the illumination source. The power per mode of the sample illumination is several orders of magnitude higher than that of a LED or thermal light source. Such a compact, low-cost source, which combines the low spatial coherence of a LED with the high spectral radiance of a laser, could enable a wide range of high-speed, full-field imaging and projection applications.

Modelling of the laser dynamics of electrically pumped organic semiconductor laser diodes

2005 ◽  
Author(s):  
Christof Pflumm ◽  
Christian Karnutsch ◽  
René Boschert ◽  
Martina Gerken ◽  
Uli Lemmer ◽  
...  
Keyword(s):  
Semiconductor Laser ◽  
Organic Semiconductor ◽  
Laser Diodes ◽  
Laser Dynamics ◽  
Electrically Pumped ◽  
Semiconductor Laser Diodes ◽  
Organic Semiconductor Laser

Superradiance in electrically pumped semiconductor laser: Myth or reality?

2014 ◽  
Author(s):  
D.L. Boiko ◽  
X. Zeng ◽  
T. Stadelmann ◽  
S. Grossmann ◽  
A.C. Hoogerwerf
Keyword(s):  
Semiconductor Laser ◽  
Electrically Pumped

Spatial coherence of electrically pumped random terahertz lasers

2021 ◽  
Author(s):  
EVA ARIANNA AURELIA POGNA ◽  
Alessandra Di Gaspare ◽  
Kimberly Reichel ◽  
Chiara Liberatore ◽  
Harvey Beere ◽  
...  
Keyword(s):  
Spatial Coherence ◽  
Electrically Pumped ◽  
Terahertz Lasers

scholarly journals Electrically pumped semiconductor laser with monolithic control of circular polarization

2014 ◽  
Vol 111 (52) ◽  
pp. E5623-E5632 ◽  
Author(s):  
Patrick Rauter ◽  
Jiao Lin ◽  
Patrice Genevet ◽  
Suraj P. Khanna ◽  
Mohammad Lachab ◽  
...  
Keyword(s):  
Semiconductor Laser ◽  
Circular Polarization ◽  
Electrically Pumped
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