Measurement advances for high-speed semiconductor laser sources

1996 ◽  
Author(s):  
Dennis J. Derickson
Keyword(s):  
Semiconductor Laser ◽  
High Speed ◽  
Laser Sources

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.

Modulation performance of multimode high-speed semiconductor laser

2021 ◽  
Author(s):  
Tamer Rizk ◽  
Alaa Mahmoud ◽  
Mohamed Abdel-Rahman ◽  
Moustafa Ahmed
Keyword(s):  
Semiconductor Laser ◽  
High Speed

Wavelength conversion and switching of high speed data signals using semiconductor laser amplifiers

1993 ◽  
Vol 29 (23) ◽  
pp. 2047 ◽  
Author(s):  
R. Schnabel ◽  
W. Pieper ◽  
A. Ehrhardt ◽  
M. Eiselt ◽  
H.G. Weber
Keyword(s):  
Semiconductor Laser ◽  
High Speed ◽  
Wavelength Conversion ◽  
Laser Amplifiers ◽  
High Speed Data ◽  
Semiconductor Laser Amplifiers
Sign in / Sign up

Export Citation Format

Share Document