Heavily Yb-doped phosphate large-mode area all-solid photonic crystal fiber operating at 990 nm. (12th June 2015)

• Record Type: Journal Article
• Authors: Wang, Longfei; He, Dongbing; Feng, Suya; Yu, Chunlei; Hu, Lili; Qiu, Jianrong; Chen, Danping
• Is Part Of: Laser physics letters. Volume 12:Number 7(2015:Jul.)
• Publication Date: 2015-06-12
• Subjects: soft glass -- AS-PCF -- laser; Lasers -- Periodicals; Physics -- Periodicals; 621.366
• DOI: 10.1088/1612-2011/12/7/075102
• Languages: English
• ISSNs: 1612-2011

Abstract

Abstract: We demonstrate, for the first time to our knowledge, a 16 wt.% Yb-doped phosphate large-mode area all-solid photonic crystal fiber (AS-PCF) laser operating at 990 nm. By carefully tailoring the absorption and emission properties of the active glass and designing the structure of AS-PCF, the excitation of the 990 nm laser and the depression of the laser above 1 µ m can be easily realized even without any wavelength-selective optics. The single-mode behavior of PCF with a 35 µ m doped core, the largest core diameter of approximately 1 µ m in phosphate fiber, is theoretically investigated by finite-difference time-domain method and experimentally confirmed.