David A Washburn
Electrician at Marigold Ln, Fort Collins, CO
License number
Colorado 28786
Issued Date
Nov 6, 2004
Renew Date
Oct 1, 2014
Expiration Date
Sep 30, 2017
Type
Master Electrician
Address
Address
724 Marigold Ln, Fort Collins, CO 80526
Professional information
Method For The Calibration And Alignment Of Multiple Multi-Axis Motion Stages For Optical Alignment To A Planar Waveguide Device And System
US Patent:
6809823, Oct 26, 2004
Filed:
Sep 28, 2001
Appl. No.:
09/967451
Inventors:
William P Kennedy - Loveland CO
John Bernard Medberry - Windsor CO
David Washburn - Fort Collins CO
Benno Guggenheimer - Fort Collins CO
James D Adams - Boulder CO
John Bernard Medberry - Windsor CO
David Washburn - Fort Collins CO
Benno Guggenheimer - Fort Collins CO
James D Adams - Boulder CO
Assignee:
Agilent Technologies, Inc. - Palo Alto CA
International Classification:
G01B 1100
US Classification:
356400, 25022727
Abstract:
An optical system for detecting and coupling light to optical devices, and a method for aligning and calibrating the system. The system includes positioning stages and fiber sensors. The fiber sensors are used to detect the positions of calibration pieces and other sensors in a variety of configurations. From these detected positions, any misalignment of the sensors or positioning stages may be calculated and corrected for. The fiber sensors calibrate the system.
System And Method For Coupling Light Through A Waveguide In A Planar Optical Device
US Patent:
6493072, Dec 10, 2002
Filed:
Sep 28, 2001
Appl. No.:
09/967453
Inventors:
John Medberry - Windsor CO
Benno Guggenheimer - Fort Collins CO
David Washburn - Fort Collins CO
Benno Guggenheimer - Fort Collins CO
David Washburn - Fort Collins CO
Assignee:
Agilent Technologies, Inc. - Palo Alto CA
International Classification:
G01N 2100
US Classification:
356 731
Abstract:
A system and method for finding the position of a waveguide in a planar optical device that has application to the coupling of light to a planar optical waveguide without connectors. The system comprises input and output optical fiber probes, a light source, a photo or light detector and a optical power meter. The light detector is positioned at the exit of the optical waveguide of interest. Typically, the position of the waveguide will be known with some window of uncertainty. Assuming that the photo detector is a photodiode, the area of the photodiode is preferably large enough that the exit of the waveguide can be assumed to lie within the detection area of the photodiode. The input optical fiber probe is coupled to the light source and is moved across the uncertainty window of the entry to the waveguide. The light transmitted through the waveguide to the photo detector is measured and used to find the position of the entry to the way guide. The input fiber probe is then positioned at the entry to the waveguide.