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. 01, 2005
Filed:
Jun. 11, 2002
Marta M. Howerton, Fairfax Station, VA (US);
Roger Krahenbuhl, Huber+Suhner AG, CH;
Robert P. Moeller, Fort Washington, MD (US);
Marta M. Howerton, Fairfax Station, VA (US);
Roger Krahenbuhl, Huber+Suhner AG, CH;
Robert P. Moeller, Fort Washington, MD (US);
The United States of America as represented by the Secretary of the Navy, Washington, DC (US);
Abstract
This invention pertains to a device and method for making same. The device includes a substrate suitable for supporting pathways for optical signals; separate pathways disposed on the substrate suitable for propagating optical signals, the pathways including an input and an output optical pathway; and a reflective surface in operative contact with the input and output pathways for receiving an optical signal from the input pathway and reflecting the optical signal into the output pathway. The method for making the device includes the steps of providing two separate optical pathways on a single substrate, one being an input pathway and the other being an output pathway; providing a reflective surface in operative contact with the pathways whereby an input optical signal is passed through the input pathway, reflected by the reflective surface into the output pathway, and passed out of the output pathway, whereby the device can be made on a lithium niobate substrate with titanium-diffused pathways with a loss of about 1.0 dB or less, in a space that is at least ⅕ the space required by the same or similar prior art device.