Fiber Laser Replacement for Short Pulse Ti:Sapphire Oscillators -- Scalable Mode Locking to Record Pulse Energies

Dawson, J W ; Messerly, M J ; An, J

Lawrence Livermore National Laboratory

关键词: Fibers;    71 Classical And Quantum Mechanics, General Physics;    Oscillators;    42 Engineering;    Mode Locking;   

DOI  :  10.2172/889996
RP-ID  :  UCRL-TR-220157
RP-ID  :  W-7405-ENG-48
RP-ID  :  889996

美国|英语

来源: UNT Digital Library

【 摘 要 】

We have investigated fiber-based lasers that mode-lock via three nonlinear mechanisms: pulse evolution, bend loss, and tunneling. Experiments with nonlinear pulse evolution proved especially promising; we report here a fiber laser that produces 25 nJ, sub-200 fs pulses, an energy that is 60% higher than previous reports. Experiments with nonlinear bend loss were inconclusive; though bend-loss data show that the effect exits, we were not able to use the phenomenon to lock a laser. New models suggest that nonlinear tunneling could provide an alternate path.