High-frequency superposing module for driving laser diode
US7031359B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 2003 |
| Grant date | Apr 18, 2006 |
| Priority date | — |
| Expiry date | Sep 19, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/06226
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A high-frequency superposing module for driving a laser diode includes an oscillating circuit and an impedance matching circuit. The impedance matching circuit includes a capacitor connected in series between the emitter of a transistor and the terminal through which a laser-diode drive signal is output; and a capacitor connected in parallel between the drive-signal output terminal and the ground. The oscillating circuit includes an inductor serving as a choke coil connected between the drive-signal output terminal and the collector of the transistor, thus allowing the drive-signal output terminal to serve as a power input terminal for the oscillating circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.