Nanosecond pulse generation from a self-injected laser-pumped dye laser using a novel cavity-flipping technique

The observation of regenerative oscillation in a laser-pumped dye laser is reported. Pulse trains of 1-nsec pulses have been observed from a rhodamine 6G dye laser pumped with a 50-nsec pulse at 5320 A. The regenerative oscillation is produced by using a novel cavity-flipping technique recently developed. The principle of this technique and experimental results in a dye laser are described.