1. 420-MHz Cr:forsterite femtosecond ring laser and continuum generation in the 1-2-my m range
- Author
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Nathan R. Newbury, Man F. Yan, Jeffrey W. Nicholson, A. Bartels, Leo W. Hollberg, Scott A. Diddams, Isabell Thomann, and Kristan L. Corwin
- Subjects
Distributed feedback laser ,Materials science ,business.industry ,Second-harmonic generation ,Ring laser ,Optical modulation amplitude ,Laser ,Atomic and Molecular Physics, and Optics ,law.invention ,Frequency comb ,Optics ,Mode-locking ,law ,Optoelectronics ,ddc:530 ,Laser power scaling ,business - Abstract
We demonstrate a chromium-doped forsterite femtosecond ring laser that generates 30-fs pulses at a 420-MHz repetition rate with nearly 500 mW of average power. The compact solid-state design and broad spectral output make this laser attractive for telecommunications applications in the 1.3-1.5-micrometre region. Additional spectral broadening of the laser output in highly nonlinear optical fiber leads to octave-spanning spectra ranging from 1.06 to 2.17 micrometre. The octave is reached at a level of 18 dB below the peak. The underlying optical frequency comb can be linked to existing optical frequency standards.
- Published
- 2003