Femtosecond passively mode-locked Ti:Al(2)O(3) laser with a nonlinear external cavity.
Ultrashort pulses are generated in a Ti:Al(2)O(3) laser by using a coupled nonlinear external cavity. The external cavity uses self-phase modulation in an optical fiber to achieve passive mode locking without the need for synchronous pumping or acousto-optic modulation. A stable train of chirped 1.4-psec pulses is generated. After dispersive compensation, pulses as short as 200 fsec are obtained.
Goodberlet
J
J
Wang
J
J
Fujimoto
J G
JG
Schulz
P A
PA