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:
Aug. 22, 2000
Filed:
Nov. 26, 1997
Alan Gengsheng Chen, Schaumburg, IL (US);
Jang-Hun (James) Yeh, Streamwood, IL (US);
Sean Xin Wu, Palatine, IL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
The present invention provides a method, device and optical package (10,22) for enhancing a temperature stability by controlling a variable characteristic of an optical package and optical interconnect system. The device includes an optical emitter (14) for generating a predetermined beam of light (16) having a predetermined wavelength, a photo-sensing unit (20) for receiving a portion (18) of the predetermined beam of light (16), and a stability-enhancing broad bandwidth holographic optical element (12), wherein the predetermined wavelength of the predetermined beam of light substantially coincides with a working range wavelength of a broad bandwidth of the stability-enhancing broad bandwidth holographic optical element (12), for enhancing the temperature stability of the optical package and the optical interconnect system in response to changes in a thermal expansion of the stability-enhancing broad bandwidth holographic optical element (12) and the changes in the predetermined wavelength of the predetermined optical beam caused by temperature variations.