Optical interconnection receiving module
US6504140B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 22, 2000 |
| Grant date | Jan 7, 2003 |
| Priority date | — |
| Expiry date | Aug 22, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F39/8063
Abstract
The present invention provides an optical interconnection receiving module that can cancel out the effect of cross talk noise caused by the input signal of another channel on the preamplifier side and the reference amplifier side, and provides suitable device structures for a bypass capacitor used to stabilize supply voltage and for a capacitance device used to cancel out the effect of cross talk noise caused by the input signal of another channel on the preamplifier side and on the reference amplifier side. According to the present invention, there are provided: a photodiode array comprising a plurality of photodiodes, each of which receives an optical signal on a plurality of channels and converts the optical signal into an electric signal; and a receiving circuit for distinguishing an input signal which comprises: a preamplifier for amplifying the electric signal converted from the optical signal by the photodiode array for each of the channels; a comparator; and a reference amplifier for generating reference voltage, wherein a plurality of capacitance devices each equivalent to the photodiode are formed on the semiconductor chip where the receiving circuit is formed, and each o…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.