Driving module of laser diode
US6639924B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2001 |
| Grant date | Oct 28, 2003 |
| Priority date | — |
| Expiry date | Dec 21, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/4025
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A driving module for a laser diode has a submount substrate 1 for juxtaposing laser diodes 6, 6 and a driver IC 2. The driver IC 2 has an electric current switch circuit 3 for operating the laser diode 6, a output buffer circuit 4, and an input amplifying circuit 5. A power pattern 8 of a band shape is formed on the submount substrate 1 side by side with a line of the laser diodes 6. A connecting pad 14 for supplying an electric current to the electric current switch circuit 3 is arranged adjacent to a connecting portion with each laser diode 6. The operating electric current is supplied from this connecting pad 14 to the electric current switch circuit 3 by wire bonding.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.