The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 05, 2012
Filed:
Jun. 01, 2009
Franz X. Kaertner, Newton, MA (US);
Hyunil Byun, Cambridge, MA (US);
Jian Chen, Cambridge, MA (US);
Erich P. Ippen, Belmont, MA (US);
Dominik Pudo, Quebec, CA;
Franz X. Kaertner, Newton, MA (US);
Hyunil Byun, Cambridge, MA (US);
Jian Chen, Cambridge, MA (US);
Erich P. Ippen, Belmont, MA (US);
Dominik Pudo, Quebec, CA;
Massachusetts Institute of Technology, Cambridge, MA (US);
Abstract
Femtosecond pulse trains in waveguide lasers with high fundamental repetition rates are achieved by exploiting the nonlinearity in the waveguide. Components of the apparatus include an optical resonator, a saturable absorber for starting and stabilizing mode-locking, and a gain element. Part of the laser cavity or the entire laser cavity is made of waveguide or fiber (collectively called 'waveguide' herein). The net dispersion of the laser cavity can be anomalous. This anomalous dispersion in combination with the positive self-phase modulation nonlinearity in the waveguide creates soliton formation to shorten the pulse duration in the invented lasers. Conversely, a normal dispersive waveguide with negative self-phase modulation nonlinearity can also be used.