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We demonstrated a self-starting passively synchronized Er- and Yb-fiber laser system. Synchronization was implemented by the master-slave configuration where partial output power of the Er-fiber laser was injected into the Yb-fiber laser via a 2-m-long single-mode fiber. The output pulses both were in femtosecond range, and the cavity mismatch tolerance was 160 μm, corresponding to 1267 Hz in frequency...
We present the research of a type of vertical cavity-surface emitting photonic crystal laser with a periodically modulated surface. The proper modulation to the cavity surface changes nonradiative surface modes into radiative ones and the constructive interference of the radiative waves results in the vertical surface emission. The numerical investigation of such cavities shows that, for a cavity...
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