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Ultrafast high peak power near infrared laser systems are important in nonlinear biomedical imaging applications including two-photon excitation fluorescence (TPEF) or second harmonic generation (SHG) microscopy that are currently dominated by pulsed solid state lasers. The detected intensity in TPEF and SHG depends quad-ratically on the pulse peak power and linearly on the pulse width and repetition...
A tunable master-oscillator power-amplifier (MOPA) picosecond optical pulse source using all chirped quantum dot (QD) structures is demonstrated (60nm tunability). Under fundamental mode-locked operation, the highest peak power of 4.39 W is achieved.
We present λ=1.26 μm all quantum-dot (QD) master-oscillator-power-amplifier (MOPA) system with a pulse energy of 321 pJ, and peak power of 30.3 W at a repetition rate of 648 MHz for nonlinear bio-imaging applications.
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