Title :
Simple amplitude and phase measuring technique for ultrahigh-repetition-rate lasers
Author :
Kockaert, P. ; Peeters, M. ; Coen, S. ; Emplit, Ph ; Haelterman, M. ; Deparis, O.
Author_Institution :
Univ. Libre de Bruxelles, Belgium
Abstract :
A simple method for the full amplitude and phase characterization of the light emitted by continuous-wave ultrahigh-repetition-rate lasers is experimentally demonstrated. The method is based on the measurement of the beat notes obtained by filtering pairs of adjacent longitudinal laser modes in a high-resolution, zero-dispersion grating-lens spectroscope arrangement. The method only requires the use of a simple fast photodiode and does not involve any nonlinear optical process.
Keywords :
diffraction gratings; laser modes; laser variables measurement; lenses; optical resolving power; phase measurement; photodiodes; spectrometers; adjacent longitudinal laser modes; amplitude measuring technique; beat notes; continuous-wave ultrahigh-repetition-rate lasers; filtering pairs; high-resolution zero-dispersion grating-lens spectroscope arrangement; phase measuring technique; pulsed lasers; simple fast photodiode; spectrometers; ultrahigh-repetition-rate lasers; Fiber lasers; Fiber nonlinear optics; Laser modes; Nonlinear optics; Optical filters; Optical interferometry; Optical pulse generation; Optical pulses; Phase measurement; Photodiodes;
Journal_Title :
Photonics Technology Letters, IEEE
