Patent ID: 8000373
Filing Date: 2011-08-16
Classification: G02F,G03H,H01S

Abstract:
1. A dual-cavity single longitudinal mode (SLM) laser oscillator for generating a pulsed laser signal, comprising: an output coupler; a rear mirror forming a first cavity with the output coupler; an intra-cavity mirror disposed between the output coupler and the rear mirror along a common axis and forming a second cavity with the output coupler; a laser medium disposed between the output coupler and the intra-cavity mirror for generating laser light; and a passive Q-switch disposed between the output coupler and the intra-cavity mirror, the passive Q-switch limiting a number of modes in the laser oscillator to no more than three, wherein the first and second cavities are configured to provide further mode discrimination such that the laser oscillator generates single longitudinal mode laser pulses.