scholarly journals Advanced Material Processing Technologies with High Average Power Lasers

2000 ◽  
Vol 28 (11) ◽  
pp. 728-728
Author(s):  
Tomoo FUJIOKA
2015 ◽  
Author(s):  
Aleksej M. Rodin ◽  
Mikhail Grishin ◽  
Andrejus Michailovas ◽  
Gediminas Chazevskis ◽  
Nortautas Ulevichius

1999 ◽  
Author(s):  
Victor A. Serebryakov ◽  
Boris G. Malinin ◽  
V. G. Pankov ◽  
A. S. Eremenko ◽  
V. M. Mit'kin ◽  
...  

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Yicheng Wang ◽  
Sergei Tomilov ◽  
Clara J. Saraceno

Abstract High average power femtosecond lasers have made spectacular progress in the last decades – moving from laboratory-based systems with maximum average powers of tens of watts to kilowatt-class mature industrial systems in a short time. The availability of such systems opens new possibilities in many fields; one of the most prominent ones that have driven many of these technological advances is precise high-speed material processing, where ultrashort pulses have long been recognized to provide highest precision processing of virtually any material, and high average power extends these capabilities to highest processing rates. Here, we focus our attention on one high-average power technology with large unexplored potential for this specific application: directly modelocked multi-MHz repetition frequency high-power thin-disk oscillators. We review their latest state-of-the-art and discuss future directions and challenges, specifically with this application field in mind.


2011 ◽  
Vol 33 (7) ◽  
pp. 1727-1732 ◽  
Author(s):  
Zhao-chuan Zhang ◽  
Bao-li Shen ◽  
Xiao-juan Yu ◽  
Feng Zhang ◽  
Yun-ping Huang

Photonics ◽  
2021 ◽  
Vol 8 (1) ◽  
pp. 15
Author(s):  
Mehmetcan Akbulut ◽  
Leonid Kotov ◽  
Kort Wiersma ◽  
Jie Zong ◽  
Maohe Li ◽  
...  

We report on an eye-safe, transform-limited, millijoule energy, and high average power fiber laser. The high gain and short length of the NP phosphate-glass fibers enable the SBS-free operation with kW level peak power. The output energy is up to 1.3 mJ, and the average power is up to 23 W at an 18 kHz repetition rate with 600 ns pulses (peak power > 2.1 kW). The PER is ≈16 dB and the M2 of the beam is 1.33 × 1.18. The coherent LIDAR Figure Of Merit (FOM) is 174 mJ*sqrt(Hz), which to our knowledge is the highest reported for a fiber laser. We also report 0.75 mJ energy and >3.7 kW peak power with down to 200 ns pulses and up to 1.21 mJ energy with a 3–5 kHz repetition rate operation of the current system.


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