Coupled-cavity resonant passive mode-locked Ti:sapphire laser
- 1 December 1990
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 15 (23), 1377-1379
- https://doi.org/10.1364/ol.15.001377
Abstract
We use a nonlinear quantum-well reflective sample in a coupled-cavity configuration for resonant passive mode locking of a Ti:sapphire laser, producing tunable pulses as short as 2 psec. Pulses of less than 10-psec duration are observed over a 50-nm wavelength tuning range using a single-quantum-well reflector, over approximately 2 mm of external cavity length detuning. Stable mode-locked pulse trains are obtained without active cavity length control; however, the optical spectrum depends on the phase. We generate up to the sixth harmonic of the fundamental repetition rate, at 1.2 GHz, by simply decreasing the external cavity length.Keywords
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