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Femtosecond passively mode-locked Ti:Al sub 2 O sub 3 laser with a nonlinear external cavity

Technical Report ·
OSTI ID:7004597

Nonlinear-optical feedback that uses an external coupled cavity is a powerful technique for enhancing the performance of mode-locked lasers. Ultrashort pulses are generated in a Titanium:Aluminum Oxide 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.

Research Organization:
Massachusetts Inst. of Tech., Cambridge, MA (USA). Dept. of Electrical Engineering and Computer Science
OSTI ID:
7004597
Report Number(s):
AD-A-217171/8/XAB
Country of Publication:
United States
Language:
English