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The AESTHETICS 2020; 1(1): 46-49
Published online April 30, 2020
https://doi.org/10.46738/Aesthetics.2020.1.1.46
© Korean Association For Laser Dermatology And Trichology
Development of Picosecond 755-nm Alexandrite Laser for Treatment of Skin Aging
Seokwon Oh, MS, Hanyoung Ryu, PhD, Youngseok Seo 
, PhD
R&D Center, Wontech Co., Ltd., Daejeon, Korea
Correspondence to: Youngseok Seo
R&D Center, Wontech Co., Ltd., Daejeon 34028, Korea
E-mail: Physys@wtlaser.com
https://orcid.org/0000-0001-7939-5428
This is an open access article distributed under the terms of the Creative Commons Attribution Non- Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted noncommercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
We have developed a picosecond 755 nm alexandrite laser system. To generate picosecond laser pulses, we used self-injection techniques including Q-switch and cavity dump without mode-locking method. We have achieved through a comprehensive combination of complex optical technique, thermodynamic design, high power design, high-speed driver, and precise control technique. The uniform energy of the beam profile allows a safe and effective treatment outcome to be predicted.
Supplementary video file: This article contains supplementary material (It is available at https://youtu.be/71mHV0nxHwM).
Keywords: Picosecond laser, Alexandrite laser, Picowon, Removing tattoos, Pigmented lesions
