@article{526,
  author = {R. Shelton and L.-S. Ma and Henry Kapteyn and Margaret Murnane and John Hall and Jun Ye},
  title = {Phase-coherent Optical Pulse Synthesis from Separate Femtosecond Lasers},
  abstract = {We generated a coherently synthesized optical pulse from two independent mode-locked femtosecond lasers, providing a route to extend the coherent bandwidth available for ultrafast science. The two separate lasers (one centered at 760 nanometers wavelength, the other at 810 nanometers) are tightly synchronized and phase-locked. Coherence between the two lasers is demonstrated via spectral interferometry and second-order Þeld cross-correlation. Measurements reveal a coherently synthesized pulse that has a temporally narrower second-order autocorrelation width and that exhibits a larger amplitude than the individual laser outputs. This work represents a new and ßexible approach to the synthesis of coherent light.},
  year = {2001},
  journal = {Science},
  volume = {293},
  pages = {1286-1289},
  month = {2001-08},
  doi = {10.1126/science.1061754},
}