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. 01, 1996
Filed:
May. 02, 1995
Tibor Juhasz, Irvine, CA (US);
Laszlo Turi, San Diego, CA (US);
Intelligent Surgical Lasers, San Diego, CA (US);
Abstract
A system for generating a pulsed laser beam includes a laser source and a mode locker which are mounted in a housing that defines a beam path for light from the laser source. An electro-optical crystal is positioned on the beam path to selectively polarize light traveling along the beam path. In operation, the crystal is repetitively advanced through a three period working cycle. At the beginning of the no-lase period which initiates each working cycle, the electro-optical crystal is partially activated. After a predetermined period, pumping of the laser source begins. Next, in the pulse shaping or pre-lasing period, the mode locker becomes active to produce a single compressed pulse in the laser cavity. After pulse-shaping the system for approximately two-hundred and fifty to three-hundred microseconds, the electro-optical crystal is fully activated to start the amplification period to create an amplified laser pulse. The amplification period lasts for approximately two-tenths of one microsecond (0.2 .mu.s) to one microsecond (1 .mu.s). The crystal is then again deactivated to eject the amplified pulses from the cavity and initiate another working cycle.