A passive mode-locked Cr : forsterite laser with electronically controlled pulse duration is demonstrated. A dc voltage controlled p-n junction quantum-dot semiconductor saturable absorber mirror is presented. Output pulse durations varying from 17.4 to 6.4 ps were obtained by applying a dc voltage between 0 and -4.5 V. No dispersion compensation was used.
- Mode-locked lasers
- p-n junction quantum-dot (QD) saturable absorber
- pulse shortening
- SOLID-STATE LASERS
- QUANTUM DOTS