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Phase-Coherent Optical Pulse Synthesis From Separate Femtosecond Lasers



R K. Shelton, L -. Ma, H C. Kapteyn, M M. Murnane, John L. Hall, Jun Ye


We generated a coherently synthesized optical pulse from two independent mode-locked femtosecond lasers, providing a route to extend the coherent broadwidth 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 field 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 flexible approach to the synthesis of coherent light.
No. 5533


femtosecond lasers, schnchronized


Shelton, R. , Ma, L. , Kapteyn, H. , Murnane, M. , Hall, J. and Ye, J. (2001), Phase-Coherent Optical Pulse Synthesis From Separate Femtosecond Lasers, Science (Accessed February 29, 2024)
Created July 31, 2001, Updated October 12, 2021