Laser beam generation system employing a laser diode and high-frequency modulation circuitry mounted on a flexible circuit
US7806336B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 30, 2007 |
| Grant date | Oct 5, 2010 |
| Priority date | — |
| Expiry date | May 19, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K2207/1012
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A laser beam generation system having an integrated coherence reduction mechanism. The system includes: a flexible circuit having a first end portion and a second end portion; a laser diode mounted on the first end portion of the flexible circuit, for producing a laser beam having a central characteristic wavelength; diode current drive circuitry for producing a diode drive current to drive the laser diode and produce said laser beam; and high frequency modulation (HFM) circuitry also mounted on the first end portion of the flexible circuit, for modulating the diode drive current at a sufficiently high frequency to cause the laser diode to produce a laser beam having a spectral side-band components about the central characteristic wavelength, and thereby reducing the coherence as well as coherence length of the laser beam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.