Abstract
We describe the performance of a reflective pulse-shaper based on a Micro-ElectroMechanical System (MEMS) linear mirror array. It represents a substantial upgrade of a preceding release [Opt. Lett. 35, 3102 (2010)] as it allows simultaneous piston and tilt mirror motion, allowing both phase- and binary amplitude-shaping with no wavelength restriction. Moreover, we show how the combination of in-axis and tilt movement can be used for active correction of spatial chirp.
Highlights
Research and industrial interest towards coherent large bandwidth sources is steadily increasing
We describe the performance of a reflective pulse-shaper based on a Micro-ElectroMechanical System (MEMS) linear mirror array
A third option, which remains quite overlooked at the moment, is represented by Micro-ElectroMechanical System (MEMS)-based all-reflective shapers
Summary
Research and industrial interest towards coherent large bandwidth sources is steadily increasing Their appeal primarily comes from their versatility: large bandwidth pulses, which are associated to short time duration, nowadays as low as 10 fs even for commercial turn-key systems, are paramount ingredients in nonlinear optics, spectroscopy, and imaging. Their ultrashort duration is exploited for studying and controlling molecular and material processes on a sub-picosecond timescale All these applications can further profit from a tailored manipulation of the spectral and temporal properties of the pulses [1,2,3,4,5], which has motivated the development of pulse-shaping theory and the parallel evolution of pulse-shaping devices [6]. The present paper, which illustrates the optical implementation and characterization of our new device is complemented by a technical manuscript, which describes in full details the MEMS chip design, actuation, and electronics [17]
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