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Guanghai Jin Patents |
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Inventor: Jin; Guanghai
Address: Boxborough, MA
No. of patents: 3
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 6757101 |
None-mechanical dual stage optical switches |
June 29, 2004 |
| The present invention provides improved optical switches in which no mechanical movement is required to direct optical pathways between plural fiber ports. Advantageously, the inventive switches incorporate two-stage polarization rotation to improve isolation depth, as well as temperatur |
| 6577430 |
Bi-directional optical switch |
June 10, 2003 |
| The present invention provides improved optical switches in which no mechanical movement is required to direct optical pathways between plural fiber ports and light transmission is bi-directional. Advantageously, the inventive switches permit bi-directional light transmission. The invent |
| 6522456 |
Dynamic optical filter |
February 18, 2003 |
| An apparatus and method for filtering an optical input is disclosed. In an illustrative embodiment, an optical input is split into polarization components along separate paths. The polarization components are then fed into a first electro-optic device that includes a set of electrodes ac |
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