Laser light sources having integrated detector and intensity control and methods of producing same
US6697396B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 2, 2001 |
| Grant date | Feb 24, 2004 |
| Priority date | — |
| Expiry date | Mar 31, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/0683
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A device to monitor light output from a light source, including a V-groove substrate with a reflective coating deposited on at least one surface, an optical fiber, a light source positioned so that an amount of the light emitted, which is less than 100%, enters the optical fiber, a light intensity or source detector positioned so that at least some of the light emitted from the light source, that did not enter the optical fiber impinges upon the light intensity detector, and feedback circuitry. A method of producing a device including the steps of coating a surface of a V-groove substrate with a reflective material, placing a light source in said V-groove substrate. A method of producing a device comprising the steps of coating a surface of a V-groove substrate with a reflective material, placing a light source in said V-groove substrate, placing a light intensity detector in said V-groove substrate, and placing a wave guide structure in said V-groove substrate wherein said reflective material, said light source, said detector and said wave guide structure are positioned in said V-groove substrate so that an amount of light emitted from said light source, which is less than 100%, e…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.