标题：Visible waveguide lasers based on femtosecond laser inscribed cladding waveguides in Pr: YLF crystal
作者：Liu, Hongliang ;Hong, Minghui ;Chen, Feng ;Wu, Pengfei
作者机构：[Liu, Hongliang ;Wu, Pengfei ] Institute of Modern Optics, Nankai University, Key Laboratory of Optical Information Science and Technology, Ministry o 更多
会议名称：CLEO: Science and Innovations, CLEO_SI 2018
会议日期：13 May 2018 through 18 May 2018
来源：Optics InfoBase Conference Papers
卷：Part F94-CLEO_SI 2018
摘要：Channel waveguide in Pr:YLF crystal is fabricated by emtosecond laser (fs-laser) micromachining system. The micro Raman (μ-Raman) spectra and scanning confocal fluorescence imaging investigations of the depressed cladding structure indicated that slight changes (with respect to widths of the emission lines and spectral positions) have been generated in the lasermodification region. The microphotoluminescence (μ-PL) experiment manifests an excellent preservation of the fluorescence properties of the Pr3+ ions in the guiding area. π-polarized waveguide laser at wavelength of 605 nm and 720 nm were achieved with a pumping laser at a wavelength of 444.5 nm. The maximum output power of the lasers achieved was 66 mW and 47 mW with slope efficiencies of 9.5% and 6.3%. © OSA 2018.