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High-energy picosecond pulses with a single spatial mode from a passively mode-locked, broad-area semiconductor laser
Mallachi-Elia Meller, Leon Bello, Idan Parshani +2
We present a mode-locked semiconductor laser oscillator that emits few picosecond pulses (5-8ps at 379MHz repetition) with record peak power (112W) and pulse energy (0.5nJ) directl…
Soft aperture spatial filtering: 1.5W in a single spatial mode from a highly multi-mode laser diode in an external cavity
Mallachi-Elia Meller, Idan Parshani, Leon Bello +3
Broad area laser diodes are attractive for the high optical power they can produce. Unfortunately, this high power normally comes at the cost of severely reduced spatial coherence…
Complete reconstruction of the space-time dynamics in a Kerr-lens mode-locked laser
Idan Parshani, Leon Bello, Mallachi-Elia Meller +1
We present a complete numerical analysis and simulation of the full spatio-temporal dynamics of Kerr-lens mode-locking (KLM) in a laser on all time-scales. The KLM dynamics, which…
Passive symmetry breaking of the space-time propagation in cavity dissipative solitons
Idan Parshani, Leon Bello, Mallachi-Elia Meller +1
Dissipative solitons are fundamental wave-pulses that preserve their form in the presence of periodic loss and gain. The canonical realization of dissipative solitons is Kerr-lens…
Pairwise mode-locking in dynamically-coupled parametric oscillators
Leon Bello, Marcello Calvanese Strinati, Shai Ben-Ami +1
Mode locking in lasers is a collective effect, where due to a weak coupling a large number of frequency modes lock their phases to oscillate in unison, forming an ultrashort pulse…
The diffractive saturable loss mechanism in Kerr-lens mode-locked lasers: direct observation and simulation
Idan Parshani, Leon Bello, Mallachi-Elia Meller +1
Passive mode-locking critically relies on a saturable loss mechanism to form ultrashort pulses. However, in Kerr-lens mode-locking (KLM), no actual absorption takes place, but rath…