Phase-Coherent Optical Pulse Synthesis From Separate Femtosecond Lasers

Published

August 1, 2001

Author(s)

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

Abstract

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.

Citation

Science

Volume

293

Issue

No. 5533

Pub Type

Journals

Keywords

femtosecond lasers, schnchronized

Citation

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 October 16, 2025)