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Inventor: Liebenrood; John D.
Address: Portland, OR
No. of patents: 3
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 5539560 |
Optical router with optical control |
July 23, 1996 |
| An optical multiplexer comprises a signal energy divider, such as a directional coupler, for dividing optical signal energy received by way of a multiplexer upstream port into a control portion and a utilization portion, and an optical switch having a first switch port connected to r |
| 5020872 |
Method of operating an electrooptic modulator |
June 4, 1991 |
| An electrooptic directional coupler having first and second electrodes for influencing coupling between a segment of a first optical waveguide and a segment of a second optical waveguide, is operated by varying the potential of the first electrode relative to the second electrode during |
| 4960989 |
Optical time domain reflectometer having a receiver with selectively controlled gain |
October 2, 1990 |
| An optical time domain reflectometer comprises a detector device for detecting optical energy received at an end of a fiber under test, an amplifier having an input terminal connected to the detector device, and a photoconductive switch connected between the amplifier input terminal and |
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