Abstract
A passively phase-locked laser source based on compact femtosecond Er:fiber technology is introduced. The carrier-envelope offset frequency is set to zero via difference frequency generation between a soliton at a wavelength of and a dispersive wave at generated in the same highly nonlinear fiber. This process results in a broadband output centered at . Subsequently, the pulse train seeds a second Er:fiber amplifier, which boosts the pulse energy up to at a duration of . Excellent phase stability is demonstrated via f-to-2f spectral interferometry.
© 2011 Optical Society of America
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