Published in Journal of Quantum Electronics, Volume 29, Issue 5, May 1, 1993, pages 1309-1318.
NOTE: At the time of publication, the author Dennis Derickson was not yet affiliated with Cal Poly.
The definitive version is available at https://doi.org/10.1109/3.236143.
Mode-locked vertical cavity lasers have a large cross-sectional area and consequently a large saturation energy and large peak powers. The authors analyze excess optical bandwidth generation in these lasers and find that self-phase modulation due to optical pumping and gain saturation is the dominant factor in inducing laser pulse chirping. The large magnitude of the chirp makes intracavity prism-pair compensation difficult. Adjustment of the cavity length has a major impact on the pulse chirping, as observed experimentally. Proper adjustment can result in a large linear frequency chirp which can be compensated using external pulse compression techniques
Electrical and Computer Engineering
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