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:
Mar. 24, 2009
Filed:
Apr. 30, 2007
Serge Oktyabrsky, Rexford, NY (US);
Vadim Tokranov, Cohoes, NY (US);
Michael Yakimov, Guilderland, NY (US);
Jobert Vaneisden, Albany, NY (US);
Edris M. Mohammed, Hillsboro, OR (US);
Ian Young, Portland, OR (US);
Serge Oktyabrsky, Rexford, NY (US);
Vadim Tokranov, Cohoes, NY (US);
Michael Yakimov, Guilderland, NY (US);
Jobert VanEisden, Albany, NY (US);
Edris M. Mohammed, Hillsboro, OR (US);
Ian Young, Portland, OR (US);
The Research Foundation of State University of New York, Albany, NY (US);
Abstract
A detuned duo-cavity laser-modulator device and method are provided which include lower, middle and upper reflectors, a gain region and an absorber region integrated into a semiconductor die. The middle reflector is disposed between the lower and upper reflectors. Together, the lower and middle reflectors define a first resonant cavity, while the upper and middle reflectors define a second resonant cavity. A gain region is disposed within a laser cavity of the resonant cavities to generate an optical carrier wave, while an absorber region is disposed within a modulator cavity of the resonant cavities to modulate a signal on the optical carrier wave. The laser and modulator cavities are detuned resonant cavities, with the detuning of the laser and modulator cavities being selected to minimized change in reflection from the modulator cavity to the laser cavity when the absorber region modulates the signal on the optical carrier wave.