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:
Feb. 13, 1990
Filed:
Jul. 01, 1988
Kenneth W Kangas, Bellevue, WA (US);
Spectra-Physics, Inc., San Jose, CA (US);
Abstract
A laser system for producing pulsed, single longitudinal mode optical energy over a widely tunable range of wavelengths. The system includes an optical cavity and a solid-state gain medium. The optical cavity comprises first, second, and third optical element means. The first optical element means reflects energy received along a reflective optical path and directs the energy toward the second optical element means, which diffracts the optical energy onto a diffraction axis and an output axis. The energy diffracted along the diffraction axis is reflected back toward the second optical element means by a third optical element means, thereby creating a resonant optical cavity. The solid-state gain medium is located on the optical axis between the first and second optical element means and receives optical energy from a pump beam that is within two degrees of being colinear with the reflective optical path. The solid-state gain medium converts the pump beam energy to optical energy having a desires wavelength with a very high efficiency. The laser system is tunable by moving the third optical element means with respect to the second optical element means, thereby causing optical energy at a tunable wavelengh to resonate within the optical cavity.