Patent ID: 6819689
Filing Date: 2004-11-16
Classification: H01S

Abstract:
A passive mode lock fiber laser including an energy generating means for generating a laser energy with a cavity including a gain medium made of an optical fiber for amplifying the laser energy in the cavity, a pair of reflect means for reflecting the laser energy along an optical axis passing through the gain medium, a phase fluctuation compensating means for compensating a linear phase fluctuation of the gain medium, and an output means for outputting the laser energy generated in the cavity comprising:a temperature adjusting mechanism for adjusting a temperature of an optical fiber, the temperature adjusting mechanism being disposed proximate the optical fiber; and a piezo element position adjusting mechanism for adjusting a position in the optical axis of at least one of the reflect means by using a piezo element which is operable to contact one of the reflect means; and a moving stage operably attached to the reflect means and the piezo element position adjusting mechanism, the moving stage being movable in the optical axis.