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We have developed a normal-dispersion passively mode-locked ytterbium-doped fiber laser with a fundamental repetition rate higher than 400 MHz at a wavelength of ~1085 nm by use of a short linear cavity design.
We demonstrate a fast control of an octave-spanning fiber-based frequency comb with an intracavity electro-optic modulator. The servo bandwidth of both repetition and carrier-envelope offset frequency is greater than 200 kHz.
We report a new 1.5 mum passively mode-locked fiber laser incorporating a CNT-doped polycarbonate as a polymer saturable absorber. A 115-fs, 39-MHz soliton pulse was successfully generated with an average output power of 3.4 mW.
We demonstrate an actively mode-locked short-cavity laser employing a 151 cm-long bismuth-oxide-based highly nonlinear erbium-doped fiber. Stable 10 GHz short pulses are obtained with an 87 nm tuning range. An 8 m-long cavity realizes better stability against external perturbation.
We demonstrate a Fabry-Perot cavity, passively saturable-absorber-modelocked Yb-fiber femtosecond oscillator with up to 1.04 GHz fundamental repetition rate, enabling octave spanning continuum generation and self-referenced fCEO stabilization.
We fabricated a fiber-connector-type saturable absorber in which SWNTs and P3HT (poly-3-hexylthiophene) were coated on the connector end. The pulse width was 147 fs and the repetition rate reached as high as 51 MHz.
Pulse bursts of sub-THz rates are passively generated in a mode locked fiber laser. Repetition rates are controlled by the differential group delay of an intra cavity polarization maintaining fiber. Simulations and experiments are reported.
Quasi super continuum generation at 1.1-1.4 mum is demonstrated using ultrahigh speed wavelength tuning of femtosecond soliton pulses for the first time. The center wavelength, bandwidth, and spectrum shape can be changed arbitrarily.
A 301 MHz fundamentally mode-locked erbium fiber ring laser generating 108 fs pulses is demonstrated. Novel combination of gain fiber with anomalous group-velocity dispersion and intra-cavity silicon with normal group-velocity dispersion yields a stretched-pulse operation.
We demonstrate a rapidly scanning all-fiber Fourier transform spectrometer based on a temporal scanning all-optical delay line constructed with two mode-locked 1-GHz Yb fiber lasers. An effective mirror scan rate of 7.5 km/s is achieved.
Continuous wavelength tunablity is demonstrated in all-normal-dispersion Yb-doped mode-locked fiber laser with a birefringent filter. The mode-locking is self-started and stable. The center wavelength can be tuned from 1024.5 nm to 1070.8 nm.
We report the generation of high-energy femtosecond pulses in a chirped-pulse oscillator based on an ytterbium-doped large-mode-area photonic crystal fiber. Output pulses with 800 fs duration and more than 90 nJ energy are generated.
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