Development of Ultrashort Optical Pulse Sources Near 1.3 and 1.5 Microns With an Emphasis on Stability, High Repetition Rate, and Parallelism
Final rept. May 1993-May 1994
RENSSELAER POLYTECHNIC INST TROY NY
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We use experiment and numerical simulation to study performance of a harmonically modelocked laser that includes an electronic modulator and an intracavity Fabry-Perot etalon. We experimentally generate trains of pulses of 40 ps duration at 1.3 Ghz. We also study introduction of nonlinear optical shaping in the form of a NOLM loop. Numerical simulation indicates that NOLM loop, or similar nonlinear optical pulse shaping, can reduce the pulse duration to subpicosecond values. Experiment shows that the added length of a NOLM loop, however, has a destabilizing influence in that it nonlinear shaping that is not susceptible to this destabilization are examined. Dynamics of this type of laser, including NOLM loops, are simulated in a manner that predicts the rate of approach to stability.
- Lasers and Masers
- Radiofrequency Wave Propagation