title: High-power broadband laser source tunable from 3.0 μm to 4.4 μm based on a femtosecond Yb:fiber oscillator.
abstract: We describe a tunable broadband mid-IR laser source based on difference-frequency mixing of a 100 MHz femtosecond Yb:fiber laser oscillator and a Raman-shifted soliton generated with the same laser. The resulting light is tunable over 3.0 μm to 4.4 μm, with a FWHM bandwidth of 170 nm and maximum average output power up to 125 mW. The noise and coherence properties of this source are also investigated and described.
authors: National Institute of Standards and Technology, Time and Frequency Division, Boulder, Colorado 80305, USA. tneely@nist.gov
authors: Tyler W
authors: TW
authors: Neely
authors: Todd A
authors: TA
authors: Johnson
authors: Scott A
authors: SA
authors: Diddams