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US 4,727,553 AGranted
Short pulse laser
AssigneeAmerican Telephone and Telegraph Company, AT&T Bell Laboratories
InventorsRichard L. Fork, James P. Gordon, Janis A. Yaldmanis
Life of this patent
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Abstract
A short pulse laser is described which has saturable absorption, saturable gain, group velocity dispersion, and self phase modulation means within a single optical cavity.
Claims4
A laser comprising means for defining a single optical resonator;
- a saturable gain medium;
- an absorbing element optically coupled to said gain medium;
- said absorbing element being capable of deep saturation;
- means optically coupled to said absorbing element for deeply saturating said absorbing element;
- means for generating group velocity dispersion to balance self phase modulation generated within said laser;
- said group velocity dispersion having a sign opposite to that of the self phase modulation;
- said saturable gain medium, said absorbing element and said group velocity dispersion generating means being positioned within said single optical resonator to facilitate optical coupling therebetween;
- said saturable gain medium and absorbing element restricting an optical pulse from said laser to have soliton type pulse shaping in the fundamental soliton mode.
5 more elements
Dependencies are inferred from the claim text.