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We present characterization of a fiber laser based on newly developed erbium and ytterbium doped double-clad fiber with cross section tailored for direct splicing with the pump and signal fibers.
We report a high power diode-pumped mid-IR fiber amplifier at 2.7 mum. 4.6 W amplified signal was obtained for an input signal of 110 mW, corresponding to a net gain of 16.2 dB.
Soft-glass photonic-crystal fiber is used to generate broad supercontinuum using an all-fiber-femtosecond laser. The bandwidth exceeds 1700 nm and has average powers in excess of 100 mW with 46-MHz repetition rate.
We report on an Ytterbium gain band, holey fiber based modulation instability laser. The all fiber integrated source produces a 40 GHz train of 4 ps pulses at a wavelength of 1064 nm.
We demonstrated active Q-switching of an erbium-doped fiber laser by using an electrostatically actuated deformable metallic micro-mirror. Q-switch operation has been demonstrated with frequencies up to 120 kHz and short pulses down to 300 ns.
Synchronization of actively Q-switched Erbium and Ytterbium doped fiber lasers with a single electrostatically actuated deformable metallic micro-mirror is reported. Sum frequency generation in PPLN crystal leading to a tunable red radiation is demonstrated.
Er3+-doped fiber-lasers efficiently generate frequency-combs for optical frequency metrology. 3.5 nJ energy, 35 fs duration and 100 MHz repetition-rate laser pulses are used to obtain an octave spanning frequency-comb in the visible.
We report a bandwidth-enhanced multi-wavelength source from a stimulated Brillouin scattering assisted erbium-doped fiber laser using four-wave-mixing in a 35-cm highly nonlinear bismuth oxide fiber. Tuning of output wavelengths and wavelength spacing have been demonstrated.
The carrier-envelope phase coherence time of a mode-locked erbium fiber laser was measured to be less than 4 mus outside the feedback loop. The fiber amplifier induced noise was also determined for a cascaded amplifier.
We report on the realization of FBGs in a standard Er-doped fiber written into the non-photosensitive core by femtosecond laser pulses. Efficient laser operation is demonstrated using this technique.
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