Multiwavelength light source
US6038242A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 10, 1998 |
| Grant date | Mar 14, 2000 |
| Priority date | — |
| Expiry date | Aug 10, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/4087
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A multiwavelength light source for emitting light having multiple wavelengths. The multiwavelength light source includes a carrier and a laser diode array mounted on the carrier. The laser diode array is formed by integrating a plurality of laser diodes having substantially the same oscillation wavelength. The multiwavelength light source further includes a first temperature control device connected to the first end portion of the carrier and a second temperature control device connected to the second end portion of the carrier. The temperature of the first temperature control device is controlled to a first temperature, and the temperature of the second temperature control device is controlled to a second temperature different from the first temperature. The first and second temperature control devices produce a given temperature gradient in the carrier over its entire width from the first end portion to the second end portion to thereby oscillate the plural laser diodes with a desired wavelength spacing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.