Reliable high-efficiency high-brightness laser diode bars at

2004 ◽  
Vol 36 (4) ◽  
pp. 327-329 ◽  
Author(s):  
Hanxuan Li ◽  
Tom Truchan ◽  
Dennis Brown ◽  
Ray Pryor ◽  
Rajiv Pandey ◽  
...  
Keyword(s):  
Laser Diode ◽  
High Efficiency ◽  
High Brightness

High-brightness and high-efficiency fiber-coupled module for fiber laser pump with advanced laser diode

2017 ◽  
Author(s):  
Yohei Kasai ◽  
Yuji Yamagata ◽  
Yoshikazu Kaifuchi ◽  
Akira Sakamoto ◽  
Daiichiro Tanaka
Keyword(s):  
Fiber Laser ◽  
Laser Diode ◽  
High Efficiency ◽  
High Brightness ◽  
Laser Pump

High-brightness, high-efficiency, single-quantum-well laser diode array

1987 ◽  
Vol 23 (23) ◽  
pp. 1240 ◽  
Author(s):  
D.F. Welch ◽  
M. Cardinal ◽  
W. Streifer ◽  
D.R. Scifres ◽  
P.S. Cross
Keyword(s):  
Quantum Well ◽  
Laser Diode ◽  
High Efficiency ◽  
Diode Array ◽  
Single Quantum ◽  
Single Quantum Well ◽  
Laser Diode Array ◽  
High Brightness ◽  
Quantum Well Laser

A New Prediction Model on the Luminance of OLEDs Subjected to Different Reverse Biases for Alleviating Degradation in AMOLED Displays

2014 ◽  
Author(s):  
Paul C.-P. Chao ◽  
Yen-Ping Hsu ◽  
Yung-Hua Kao ◽  
Kuei-Yu Lee
Keyword(s):  
Reverse Bias ◽  
High Efficiency ◽  
Life Time ◽  
Density Currents ◽  
High Brightness ◽  
Light Emitting ◽  
Wide Viewing Angle ◽  
Time Operation ◽  
Long Time ◽  
History Of

Organic light-emitting diodes (OLEDs) have drawn much attention in areas of displays and varied illumination devices due to multiple advantages, such as high brightness, high efficiency, wide viewing angle, and simple structure. However, the long-time degradation of OLED emission is a serious drawback. This degradation was investigated by past works, which pointed out that the degradation was induced by high-density currents through OLED component under the long-time operation [1][2]. Proposed by a past work [3], different reverse biases was imposed on OLED components in display frames to alleviate the long-time degradation on OLEDs. Most recently, along with the reverse bias, new pixel circuits [4][5] for AMOLED displays are designed to alleviate OLED degradation, thus successfully extending OLED life time. However, since emission luminances in different frame times during AMOLED displaying differs significantly for displaying varied images, the OLED degradation evolves in a highly unpredictable fashion. In this study, based on valid theories, the voltage across the OLED is first used as indicator for OLED degradation. Then the relation between the level of OLED degradation, in terms of OLED’s cross voltage, and the history of imposing reverse biases are precisely modeled. With the model, the degradation of the OLED under reverse bias to extend lifetime can be successfully predicted. Based on this model, engineers can then optimize the applied reverse bias on OLEDs to maximize the OLED lifetime for varied display requirement.

High-brightness 808 nm semiconductor laser diode packaged by SiC heat sink

2020 ◽  
Vol 67 (11) ◽  
pp. 1017-1021
Author(s):  
Xingyu Li ◽  
Kai Jiang ◽  
Zhen Zhu ◽  
Jian Su ◽  
Wei Xia ◽  
...  
Keyword(s):  
Semiconductor Laser ◽  
Laser Diode ◽  
Heat Sink ◽  
High Brightness ◽  
Semiconductor Laser Diode
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