Black phosphorus mode-locked sub-100 fs bulk laser based on heterostructured Yb composite crystal. (1st December 2017)

• Record Type: Journal Article
• Authors: Lou, Fei; Zhang, Baitao; Sun, Shijia; Hu, Chen; Lin, Zhoubin; Jiang, Jieyu; Zhang, Shuaiyi; Wang, Xia; Teng, Bing; He, Jingliang
• Is Part Of: Applied physics express. Volume 11:Number 1(2018)
• Publication Date: 2017-12-01
• Subjects: Physics -- Periodicals; Technology -- Periodicals; 621.05
• DOI: 10.7567/APEX.11.012601
• Languages: English
• ISSNs: 1882-0778

Abstract

Abstract: A physically combined heterostructured (PCH) Yb:KGW/Yb:SYB crystal is used to demonstrate a black phosphorus (BP) mode-locked sub-100 fs bulk laser. Near-transform-limited 75 fs pulses are yielded at 1054.6 nm with an output power of 1.03 W, corresponding to an optical-to-optical efficiency of 10%. This is the first implementation of the PCH concept into a mode-locked Yb-crystal laser to the best of our knowledge. The results not only illustrate the potential of the PCH Yb-crystal as an ideal candidate for realizing ultrafast lasers, but also indicate that BP mode-locking is a very promising approach for generating sub-100 fs pulses from a laser oscillator.