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Progress in Photonic-Crystal Surface-Emitting Lasers
- Source :
- Photonics, Vol 6, Iss 3, p 96 (2019)
- Publication Year :
- 2019
- Publisher :
- MDPI AG, 2019.
-
Abstract
- Photonic-crystal surface-emitting lasers (PCSELs) have attracted considerable attention as a novel semiconductor laser that surpasses traditional semiconductor lasers. In this review article, we review the current progress of PCSELs, including the demonstration of large-area coherent oscillation, the control of beam patterns, the demonstration of beam steering, and the realization of watt-class and high-beam-quality operation. Furthermore, we show very recent progress in the exploration of high brightness of more than 300 MW cm−2 sr−1, obtained with a high output power of about 10 W while maintaining a high beam quality M2 ~ 2. The PCSELs with such high performances are expected to be applied to a variety of fields, such as laser-based material processing, optical sensing (light-detection and ranging (LiDAR)), and lighting, as they retain the benefits of compact and high-efficiency semiconductor lasers.
- Subjects :
- lcsh:Applied optics. Photonics
Brightness
Materials science
business.industry
Beam steering
ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION
lcsh:TA1501-1820
Laser
Atomic and Molecular Physics, and Optics
Semiconductor laser theory
law.invention
Semiconductor
law
Optoelectronics
Radiology, Nuclear Medicine and imaging
Laser beam quality
semiconductor laser
business
Instrumentation
photonic crystal
Beam (structure)
Photonic crystal
Subjects
Details
- ISSN :
- 23046732
- Volume :
- 6
- Database :
- OpenAIRE
- Journal :
- Photonics
- Accession number :
- edsair.doi.dedup.....62f4af382c329bd6a60c50dc7947b1fc