Densely packed pie shaped vertical-cavity surface-emitting laser array incorporating a tapered one-dimensional wet oxidation

2000 ◽  
Vol 12 (5) ◽  
pp. 462-464 ◽  
Author(s):  
Young-Gu Ju ◽  
D. Lofgreen ◽  
A. Fiore ◽  
Syn-Yem Hu ◽  
E. Hegblom ◽  
...  
Keyword(s):  
Cavity Surface ◽  
Wet Oxidation ◽  
Laser Array ◽  
One Dimensional ◽  
Vertical Cavity Surface ◽  
Surface Emitting Laser ◽  
Vertical Cavity

High-Power-Density High-Efficiency Bottom-Emitting Vertical-Cavity Surface-Emitting Laser Array

2011 ◽  
Vol 4 (5) ◽  
pp. 052104 ◽  
Author(s):  
Di Liu ◽  
Yongqiang Ning ◽  
Yugang Zeng ◽  
Li Qin ◽  
Yun Liu ◽  
...  
Keyword(s):  
Power Density ◽  
High Power ◽  
High Efficiency ◽  
Cavity Surface ◽  
High Power Density ◽  
Laser Array ◽  
Vertical Cavity Surface ◽  
Surface Emitting Laser ◽  
Vertical Cavity

4×15 Gbit/s 850 nm Vertical Cavity Surface Emitting Laser Array

2018 ◽  
Vol 38 (5) ◽  
pp. 0514001
Author(s):  
吕朝晨 Lü Zhaochen ◽  
王青 Wang Qing ◽  
尧舜 Yao Shun ◽  
周广正 Zhou Guangzheng ◽  
于洪岩 Yu Hongyan ◽  
...  
Keyword(s):  
Cavity Surface ◽  
Laser Array ◽  
Vertical Cavity Surface ◽  
Surface Emitting Laser ◽  
Vertical Cavity

High Power and High Reliability Vertical-Cavity Surface-Emitting Laser Array

2011 ◽  
Vol 38 (8) ◽  
pp. 0802011
Author(s):  
崔锦江 Cui Jinjiang ◽  
宁永强 Ning Yongqiang ◽  
姜琛昱 Jiang Chenyu ◽  
王帆 Wang Fan ◽  
施燕博 Shi Yanbo ◽  
...  
Keyword(s):  
High Power ◽  
High Reliability ◽  
Cavity Surface ◽  
Laser Array ◽  
Vertical Cavity Surface ◽  
Surface Emitting Laser ◽  
Vertical Cavity

Study on Wet Oxidation Process in Vertical Cavity Surface Emitting Laser

2018 ◽  
Vol 39 (12) ◽  
pp. 1714-1721
Author(s):  
李 颖 LI Ying ◽  
周广正 ZHOU Guang-zheng ◽  
兰 天 LAN Tian ◽  
王智勇 WANG Zhi-yong
Keyword(s):  
Oxidation Process ◽  
Cavity Surface ◽  
Wet Oxidation ◽  
Vertical Cavity Surface ◽  
Surface Emitting Laser ◽  
Vertical Cavity

Parallel Confocal Microscope using Vertical-Cavity Surface Emitting Laser Array

2001 ◽  
Vol 7 (S2) ◽  
pp. 1004-1005
Author(s):  
Motonobu Fujita ◽  
Makoto Naruse ◽  
Masatoshi Ishikawa
Keyword(s):  
Dynamic Range ◽  
Laser System ◽  
Confocal Microscope ◽  
Confocal Laser ◽  
Cavity Surface ◽  
Laser Array ◽  
Parallel Beam ◽  
Vertical Cavity Surface ◽  
Surface Emitting Laser ◽  
Vertical Cavity

Here we show a confocal microscope system where a vertical-cavity surface-emitting laser (VCSEL) array is introduced for the parallel probing beams.A VCSEL array is a semiconductor laser device that emits circular beams vertically to the surface of the chip, which can directly be used as confocal laser microscope applications. The VCSEL device itself can be the parallel beam source of the confocal laser system, whereas in conventional Nipkow disc-based system, several lenses are required to form probing beams. Figure 1 shows the basic structure of VCSEL-based confocal microscope systems. Since there is typically no correlation between individual channels of VCSEL, there are no interferences among dense parallel beam arrays. Additionally, in the case of Nipkow disc system, the signal to noise ratio of the detected light is another problem: some of the light from the source laser reflects at the surface of the disc, which eventually could be detected by the sensor as noise. in the proposed system no such problem occurs as shown in Fig. 2(a). in addition, “all” optical beam from VCSEL is used as probing beam whereas most of the power is lost at the disc as compared in Fig. 2(b). in addition, pixel parallel illumination control is also achievable by controlling each channel of the VCSEL so that the dynamic range of the detected signal is maximized.

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