Abstract
The concept of eXtreme Chirped Pulse Amplification (X-CPA) is
introduced as a novel method to overcome the energy storage limit of
semiconductor optical amplifiers in ultrashort pulse amplification. A
colliding pulse mode-locked semiconductor laser is developed as a master
oscillator and generates 600fs pulses with 6nm bandwidth at 975nm.
Using a highly dispersive chirped fiber Bragg grating (1600ps/nm) as an
extreme pulse stretcher and compressor, we demonstrate ~16,000 times
extreme chirped pulse amplification and recompression generating optical
pulses of 590fs with 1.4kW of peak power. These pulses represent, to
our knowledge, the highest peak power generated from an all
semiconductor ultrafast laser system.
© 2005 Optical Society of America
http://www.opticsinfobase.org/oe/fulltext.cfm?uri=oe-13-12-4600&id=84338
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