Abstract
We demonstrate a 158 fs 5.3 nJ mode-locked laser system based on a fiber oscillator, fiber amplifier and fiber compressor. Dispersion compensation in the fiber oscillator was obtained with a solid-core photonic bandgap (SC-PBG) fiber spliced to standard fibers, and external compression is obtained with a hollow-core photonic bandgap (HC-PBG) fiber.
Highlights
In many areas of research mode-locked lasers are an invaluable tool, and in the industry mode-locked lasers are widespread researched
Dispersion compensation in the fiber oscillator was obtained with a solid-core photonic bandgap (SC-PBG) fiber spliced to standard fibers, and external compression is obtained with a hollow-core photonic bandgap (HC-PBG) fiber
Transform limited pulses were obtained through nonlinear pulse propagation in the amplifier
Summary
In many areas of research mode-locked lasers are an invaluable tool, and in the industry mode-locked lasers are widespread researched (for e.g. micro-machining and marking). Because of the high dispersion of standard fibers, dispersion compensating elements are necessary in fiber lasers to obtain broad spectra, which can result in short femtosecond pulses. The main problem with PCFs is the small core size which is necessary to achieve anomalous dispersion As a result these fibers have a high nonlinear coefficient, which is less attractive as it limits the obtainable pulse energy. Single-pulse mode-locking cannot be obtained if the cavity contains such Fresnel-reflections, and these fibers are not attractive for realizations of lasers with no sections of free space optics. In this paper we demonstrate a mode-locked laser using a solid-core photonic bandgap (SC-PBG) fiber for dispersion compensation. The oscillator was operated in the net normal dispersion regime to explore the limits in spectral width and pulse duration set by the high total third order intra cavity dispersion. Transform limited pulses were obtained through nonlinear pulse propagation in the amplifier
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
