scholarly journals Progress in Photonic-Crystal Surface-Emitting Lasers

Photonics ◽  
2019 ◽  
Vol 6 (3) ◽  
pp. 96 ◽  
Author(s):  
Ishizaki ◽  
Zoysa ◽  
Noda
Keyword(s):  
Photonic Crystal ◽  
Semiconductor Lasers ◽  
High Efficiency ◽  
Crystal Surface ◽  
Beam Quality ◽  
Beam Steering ◽  
High Beam ◽  
Surface Emitting Lasers ◽  
Emitting Lasers ◽  
High Beam Quality

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.

scholarly journals Electronic control of coherence in a two-dimensional array of photonic crystal surface emitting lasers

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
R. J. E. Taylor ◽  
D. T. D. Childs ◽  
P. Ivanov ◽  
B. J. Stevens ◽  
N. Babazadeh ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Crystal Surface ◽  
Two Dimensional ◽  
Electronic Control ◽  
Dimensional Array ◽  
Surface Emitting Lasers ◽  
Emitting Lasers

scholarly journals Vertically integrated diffractive gratings on photonic crystal surface emitting lasers

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Lih-Ren Chen ◽  
Kuo-Bin Hong ◽  
Hsiu-Ling Chen ◽  
Kuan-Chih Huang ◽  
Tien-Chang Lu
Keyword(s):  
Photonic Crystal ◽  
Crystal Surface ◽  
Beam Steering ◽  
Azimuthal Angle ◽  
Three Dimensional ◽  
Grating Period ◽  
Single Chip ◽  
Output Beam ◽  
Optical Elements ◽  
Emitting Lasers

AbstractWe designed and fabricated a photonic crystal surface emitting laser (PCSEL) with vertically integrated diffractive optical elements on their top to study the mechanism of static beam steering on a single chip. The deflected output beam by the self-formed periodic ITO cladding layer of the PCSEL can be further steered by changing the grating period and azimuthal angle of the diffractive gratings relative to the photonic crystal. Through the analysis of photonic band structure and lasing characteristics, the periodic ITO structure is coupled to the photonic crystal band, whereas the integrated grating serves the diffractive function only. The findings pave the way for the design of PCSELs enabling single or multiple output beam with varying direction capability. This type of laser is regarded as an ideal light source for various applications, such as light detection and ranging and three-dimensional sensing systems.

Threshold gain analysis in GaN-based photonic crystal surface emitting lasers

2011 ◽  
Vol 36 (10) ◽  
pp. 1908 ◽  
Author(s):  
Peng-Hsiang Weng ◽  
Tzeng-Tsong Wu ◽  
Tien-Chang Lu ◽  
Shing-Chung Wang
Keyword(s):  
Photonic Crystal ◽  
Crystal Surface ◽  
Surface Emitting Lasers ◽  
Emitting Lasers ◽  
Threshold Gain
Sign in / Sign up

Export Citation Format

Share Document