Short-pulse modulation of gallium-arsenide lasers with TRAPATT diodes

1973 ◽  
Vol 9 (7) ◽  
pp. 166 ◽  
Author(s):  
J.E. Carroll ◽  
J.G. Farrington
Keyword(s):  
Gallium Arsenide ◽  
Short Pulse ◽  
Pulse Modulation

scholarly journals Step-Pulse Modulation of Gain-Switched Semiconductor Pulsed Laser

2019 ◽  
Vol 9 (3) ◽  
pp. 602 ◽  
Author(s):  
Bin Li ◽  
Changyan Sun ◽  
Yun Ling ◽  
Heng Zhou ◽  
Kun Qiu
Keyword(s):  
Semiconductor Laser ◽  
Peak Power ◽  
Short Pulse ◽  
Extinction Ratio ◽  
Pulse Signal ◽  
Single Pulse ◽  
Single Mode ◽  
Output Pulse ◽  
Time Domain Reflectometry ◽  
Pulse Modulation

To improve the peak power and extinction ratio and produce ultra-short pulses, a novel approach is presented in this paper offers a highly effective modulated method for a gain-switched semiconductor laser by using step-pulse signal modulation. For the purpose of single pulse output, then the effects on the output from the gain-switched semiconductor laser are studied by simulating single mode rate equation when changing the amplitude and width of the modulated signal. The results show that the proposed method can effectively accelerate the accumulation speed of the population inversion and we can acquire the output pulse with higher peak power and shorter width. Compared with the traditional rectangular wave modulation, this method is advantageous to obtain a high gain switching effect by increasing the second modulation current and reduce the pulse width to saturation at the best working point. It can be incorporated as a practical and cost-effective approach for many fields which need high extinction ratio short pulse, such as the optical time domain reflectometry.

Pulse modulation of gallium arsenide injection luminescent diode laser

1963 ◽  
Vol 51 (8) ◽  
pp. 1141-1142 ◽  
Author(s):  
J.P. Quine ◽  
K. Tomiyasu ◽  
C. Younger
Keyword(s):  
Gallium Arsenide ◽  
Diode Laser ◽  
Pulse Modulation

scholarly journals Analysis of the dynamic behavior and short-pulse modulation scheme for laterally coupled diode lasers

2001 ◽  
Vol 7 (2) ◽  
pp. 192-200 ◽  
Author(s):  
H. Lamela ◽  
M. Leones ◽  
G. Carpintero ◽  
C. Simmendinger ◽  
O. Hess
Keyword(s):  
Dynamic Behavior ◽  
Short Pulse ◽  
Diode Lasers ◽  
Modulation Scheme ◽  
Pulse Modulation

Multiphoton ionization by a very short pulse

2017 ◽  
Vol 187 (11) ◽  
pp. 1280-1287 ◽  
Author(s):  
Leonid V. Keldysh
Keyword(s):  
Short Pulse ◽  
Multiphoton Ionization
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