Laser diode driver circuit
US8831059B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 7, 2011 |
| Grant date | Sep 9, 2014 |
| Priority date | — |
| Expiry date | Feb 7, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/06226
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A laser diode drive circuit includes a laser diode (LD), a modulation-current differential drive circuit, a bias-current differential drive circuit, a first inductance connected between an anode of the LD and a positive power source, a second inductance connected between a cathode of the LD and a negative-phase output terminal of the bias-current differential drive circuit, a first resistor connected to a connection point of the anode of the LD and the first inductance and connected to a negative-phase output terminal of the modulation-current differential drive circuit, and a second resistor connected to a connection point of the cathode of the LD and the second inductance and connected to a positive-phase output terminal of the modulation-current differential drive circuit, and a positive-phase output terminal of the bias-current differential drive circuit is connected to the connection point.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.