Asynchronous optical sampling with GHz repetition rate femtosecond lasers for high precision terahertz spectroscopy

2011 ◽  
Author(s):  
T. Dekorsy ◽  
G. Klatt ◽  
R. Gebs ◽  
C. Janke ◽  
A. Bartels
Keyword(s):  
High Precision ◽  
Repetition Rate ◽  
Terahertz Spectroscopy ◽  
Femtosecond Lasers ◽  
Optical Sampling

GHz femtosecond processing with agile high-power laser

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Eric Audouard ◽  
Guillaume Bonamis ◽  
Clemens Hönninger ◽  
Eric Mottay
Keyword(s):  
High Power ◽  
Repetition Rate ◽  
Thermal Ablation ◽  
Femtosecond Lasers ◽  
Optimal Choice ◽  
Process Conditions ◽  
High Power Laser ◽  
Power Laser ◽  
Ablation Efficiency ◽  
High Power Lasers

Abstract Bursts of GHz repetition rate pulses can significantly improve the ablation efficiency of femtosecond lasers. Depending on the process conditions, thermal mechanisms can be promoted and controlled. GHz ablation therefore combines thermal and non-thermal ablation mechanisms. With an optimal choice of the burst duration, the non-thermal ablation can be highly enhanced by a heating phase due to the first pulses in the burst. The GHz burst mode can be considered as a key function for the “agility” of new high-power lasers.

scholarly journals Self-triggered Asynchronous Optical Sampling Terahertz Spectroscopy using a Bidirectional Mode-locked Fiber Laser

2018 ◽  
Vol 8 (1) ◽  
Author(s):  
R. Dawson Baker ◽  
N. Tolga Yardimci ◽  
Yi-Hsin Ou ◽  
Khanh Kieu ◽  
Mona Jarrahi
Keyword(s):  
Fiber Laser ◽  
Terahertz Spectroscopy ◽  
Optical Sampling

Measurement of femtosecond pulse contrast of low-repetition-rate lasers by optical Kerr effect

2014 ◽  
Vol 23 (03) ◽  
pp. 1450031 ◽  
Author(s):  
Dengke Wu ◽  
Junfang He ◽  
Changjun Zhu ◽  
Yishan Wang ◽  
Wei Zhao
Keyword(s):  
Repetition Rate ◽  
Kerr Effect ◽  
Dynamic Range ◽  
Femtosecond Lasers ◽  
Wide Spectrum ◽  
Sampling Interval ◽  
Temporal Sampling ◽  
Optical Kerr Gate ◽  
Scanning Range ◽  
Pulse Contrast

In this paper, pulse contrast was measured for femtosecond lasers with low-repetition-rate (40 Hz) using optical Kerr gate as a sampler. The results show that, without attenuator, dynamic range as high as 104 was achieved, with a scanning range of 126 ps and a temporal sampling interval of 6.3 fs. Moreover, the method suits for measuring laser pulse contrast in wide spectrum range.

High Repetition Rate kJ-class Nanosecond to Femtosecond Lasers

2014 ◽  
Author(s):  
T. Ditmire ◽  
E. Gaul ◽  
M. Martinez ◽  
M. Donovan ◽  
W. White ◽  
...  
Keyword(s):  
Repetition Rate ◽  
Femtosecond Lasers ◽  
High Repetition Rate ◽  
High Repetition

scholarly journals Repetition rate optimization of passively mode-locked fiber laser for high-speed linear optical sampling

2015 ◽  
Vol 64 (13) ◽  
pp. 134206
Author(s):  
Peng Han ◽  
Liu Bin ◽  
Fu Song-Nian ◽  
Zhang Min-Ming ◽  
Liu De-Ming
Keyword(s):  
Fiber Laser ◽  
Repetition Rate ◽  
High Speed ◽  
Optical Sampling ◽  
Linear Optical ◽  
Rate Optimization
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