Optical transmitter
US7274837B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2004 |
| Grant date | Sep 25, 2007 |
| Priority date | — |
| Expiry date | Jan 27, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2201/2036
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical transmitter in which a microstripline is formed by a signal wiring pattern and a GND conductor pattern on a circuit board (including a flexible board), and a signal lead of a light emitting element module is mounted in a signal lead mounting hole connected with said signal wiring pattern so as to be connected with said signal wiring pattern, wherein a pattern adapted to add capacitance between a stem of said light emitting element module and said signal wiring pattern is provided on said signal wiring pattern on said circuit board, and wherein the pattern adapted to add capacitance has a size corresponding to ±50% of a capacitance C≈L/Zo2, where Zo is signal line impedance, and L is the signal lead inductance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.