Nanosecond Pulse Shaping with Fiber-Based Electro-Optical Modulators and a Double-Pass Tapered Amplifier

Abstract

We describe a system for generating frequency-chirped and amplitude-shaped pulses on time scales from sub-nanosecond to ten nanoseconds. The system starts with cw diode-laser light at 780 nm and utilizes fiber-based electro-optical phase and intensity modulators, driven by an arbitrary waveform generator, to generate the shaped pulses. These pulses are subsequently amplified to several hundred mW with a tapered amplifier in a delayed double-pass configuration. Frequency chirps up to 5 GHz in 2 ns and pulse widths as short as 0.15 ns have been realized.

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• Quantum Computing
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• Enhancement of Ultracold Molecule Formation Using Shaped Nanosecond Frequency Chirps
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Cited by in corpus (7)

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• Directional Quantum-Controlled Chemistry: Generating Aligned Ultracold Molecules via Photoassociation
• Composite acousto-optical modulation
• Amplification of nanosecond laser pulse chain via dynamic injection locking of laser diode
• Amplification of arbitrary frequency chirps of pulsed light on nanosecond timescales