Abstract
Detailed investigations of the spatiotemporal and spectral emission properties of a high power diode laser are presented. The AR coated laser diode with design wavelength of 940nm is driven in an external resonator. The laser generates up to 340mW average output power in a train of picosecond pulses with durations of 25ps and repetition rates of 2.6GHz. The mechanism of mode locking is discussed as self pulsation because of the strong correlation between round trip time and repetition rate. The double-sided exponential pulses suggest saturable absorber action.
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