Invention Grant
- Patent Title: Light source for a passive optical network
- Patent Title (中): 无源光网络的光源
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Application No.: US12723857Application Date: 2010-03-15
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Publication No.: US08346097B1Publication Date: 2013-01-01
- Inventor: Albert M. Benzoni , Joel S. Paslaski
- Applicant: Albert M. Benzoni , Joel S. Paslaski
- Applicant Address: US CA San Jose
- Assignee: HOYA Corporation USA
- Current Assignee: HOYA Corporation USA
- Current Assignee Address: US CA San Jose
- Agent David S. Alavi
- Main IPC: H04B10/04
- IPC: H04B10/04

Abstract:
A method comprises: receiving an RF signal; providing an RF signal level; setting a DC optical power level at one of at least two levels depending on whether the RF signal level is above or below an RF threshold; and modulating with the RF signal optical output power about the DC optical power level. An apparatus comprises: a light source; an RF detector arranged to receive the RF signal and to provide the RF signal level; an optical power control circuit coupled to the RF detector and to the light source that includes a comparator and is arranged to set the DC optical power level according to the RF signal level; and an optical modulator coupled to the light source and arranged to receive the RF signal and to modulate therewith optical output power about the DC set point.
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