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We demonstrate Cerenkov radiation generation in a higher-order-mode fiber with anomalous dispersion from approximately 700 to 800 nm. Cerenkov radiation at 850 nm with 0.6 nJ pulse energy is generated with 60% power conversion efficiency.
In order to profit from all the benefits of a waveguide laser device like alignment-free and maintenance-free operation, decoupling from technical noise, and compactness an all fiber setup is highly desirable. Recently, all- fiber lasers utilizing a spectral or a temporal filter have been published, delivering pulse durations down to 179 fs and 195 fs, respectively.this contribution, we report on...
We discuss soliton-self frequency shift in higher-order-mode (HOM) fibers below 1300 nm. HOM fibers, with its higher tolerance to nonlinearities and engineerable dispersion characteristics, will enable tunable, energetic femtosecond sources at new wavelength regions.
We demonstrate soliton-self frequency shift and Cerenkov radiation in higher-order-mode solid, silica-based fibers below 1300 nm. A wavelength shift of 240 nm and pulse energy of 1 nJ were achieved for sub 100-fs pulses.
Modelocking in Yb-doped figure-eight fiber lasers is demonstrated utilizing dispersion compensation from a higher-order-mode module with anomalous dispersion. Pulses were compressed to 91 fs. the shortest demonstrated pulses for a Yb-doped figure-eight fiber laser.
We demonstrate propagation and compression of 14-nJ, 152-fs pulses in the 2100-mum2 effective area, LP07 mode of an intentionally multi-moded fiber. The 12-m length of fiber was coiled to a radius of curvature of 7.5 cm.
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