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:
Oct. 09, 2007
Filed:
Jul. 08, 2004
Lanny Laughman, Bolton, CT (US);
Thomas V. Hennessey, Jr., Lebanon, CT (US);
Joseph S. Smucz, East Hartford, CT (US);
Vernon A. Seguin, Windsor, CT (US);
Raymond Michaud, Lebanon, CT (US);
Lanny Laughman, Bolton, CT (US);
Thomas V. Hennessey, Jr., Lebanon, CT (US);
Joseph S. Smucz, East Hartford, CT (US);
Vernon A. Seguin, Windsor, CT (US);
Raymond Michaud, Lebanon, CT (US);
Coherent, Inc., Santa Clara, CA (US);
Abstract
Various electro-optical modulator module designs are presented, which can provide for uniform, symmetric, and efficient heat removal for mode-locking, Q-switching, and/or cavity dumping operations. Heat can be uniformly extracted from an EO crystal without imposing undue stress, thereby preventing birefringence and laser beam degradation. A liquid-cooling approach can be used for high-duty operations, such as mode-locking operations. Efficient heat removal can prevent thermal run-away from electrical heating of the crystal due to the large drop in the electrical resistance of CdTe with increasing temperature when operated above 50° C. RF or video arcing and subsequent damage to the EO crystal can be prevented by surrounding the crystal with a low dielectric constant material that lowers the capacitance coupling to ground, while still maintaining good thermal cooling.