Nanosecond pulse shaping at 780 nm with fiber-based electro-optical modulators and a double-pass tapered amplifier

C. E. Rogers, P. L. Gould
2016 Optics Express  
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
more » ... s up to 5 GHz in 2 ns and pulse widths as short as 0.15 ns have been realized.
doi:10.1364/oe.24.002596 pmid:26906832 fatcat:tut4cn33draavdvmzahrqd4a4a