Numerical Analysis of Amplitude-to-Phase Noise Conversion in a Self-Referencing Scheme Using Ultrashort White-Continuum Light Generated by Microstructure Fibers

摘要

We theoretically analyzed detailed properties of the amplitude-to-phase noise conversion coefficient (C_(AP)) for ultrashort laser pulses in a self-referencing carrier envelope phase measurement scheme using a microstructure fiber (MSF). The nonlinear phase noise, which is determined by fluctuations in phase difference between the self-referencing frequencies of f and 2f in the octave-spanning white-continuum light generated by MSF, depends on the launched laser power and the self-referencing wavelength. A typical C_(AP) ranges from 1 to 3 rad/mW. However, this phase noise does not result in a carrier envelope phase shift of the output pulse from MSFs.