Low-power femtosecond laser 1560nm ultra-fast femtosecond laser High power femtosecond laser High repetition frequency femtosecond laser 780nm femtosecond laser 2μm ultra-fast fiber laser 2.8μm ultra-fast fiber laser 1.5um repetition rate locked femtosecond laser 1um femtosecond fiber laser 1030nm femtosecond fiber laser 40W femtosecond fiber laser 100W femtosecond fiber laser 1000W femtosecond fiber lase Miniaturized femtosecond fiber laser