Nonlinear external cavity modelocked laser

Details Nonlinear external cavity modelocked laser Nonlinear external cavity modelocked laser

1990-05-15

1991-04-09

Gonzalez, Frank

Coherent light generators

Particular beam control device

Mode locking

372 21, 372 97, 372 99, H01S 3098

Patent

active

050070592

ABSTRACT:
Modelocking of a solid state laser such as a Ti:Al.sub.2 O.sub.3 laser is achieved by employing an external cavity defined by spatially separated reflective elements wherein at least one of the reflective elements exhibits a nonlinear characteristic in response to an impinging light beam. Exemplary nonlinear reflective elements are described using bulk semiconductor material or semiconductor quantum well structures integrated with a rear reflector such as a stack of quarter-wave thick dielectric or semiconductor material. Tuning control of the nonlinear reflective element may be introduced with temperature control arrangements and with mechanical translation arrangements in conjunction with lateral band gap engineering of the semiconductor material.

REFERENCES:
patent: 4268801 (1981-05-01), Stappaerts
patent: 4635263 (1987-01-01), Mollenauer
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P. M. W. French et al., Optics Letters, vol. 14, No. 12, Jul. 1, 1989, "Femtosecond Pulse Generation from Titanium-doped . . . ", pp. 686-688.
E. P. Ippen et al., J. Opt. Soc. Am. B, vol. 6, No. 9, Sep. 1989, "Additive Pulse Mode Locking", pp. 1736-1745.
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