Invention Grant
- Patent Title: Passive optical networks
- Patent Title (中): 被动光网络
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Application No.: US12994239Application Date: 2010-05-11
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Publication No.: US08909050B2Publication Date: 2014-12-09
- Inventor: Marco Presi , Ernesto Ciaramella , Fabio Cavaliere , Luca Banchi
- Applicant: Marco Presi , Ernesto Ciaramella , Fabio Cavaliere , Luca Banchi
- Applicant Address: SE Stockholm
- Assignee: Telefonaktiebolaget L M Ericsson (publ)
- Current Assignee: Telefonaktiebolaget L M Ericsson (publ)
- Current Assignee Address: SE Stockholm
- Agency: Baker Botts, LLP
- Priority: EP10161606 20100430
- International Application: PCT/EP2010/056456 WO 20100511
- International Announcement: WO2011/134536 WO 20111103
- Main IPC: H04J14/00
- IPC: H04J14/00 ; H04L27/20 ; H04B10/2587
Abstract:
An optical network unit (10) comprising a reflective semi-conductor optical amplifier (R-SOA) 12 and a driver 14. The R-SOA has a large optical confinement factor and is arranged to receive a portion of a downstream optical signal having a signal wavelength and a signal power. The driver is arranged to generate a drive signal 16 to drive the R-SOA. The drive signal is arranged to cause the R-SOA to operate in saturation at the signal power. The drive signal is further arranged to cause the R-SOA to apply a return-to-zero line code to said portion of the downstream optical signal to form an upstream optical signal at the signal wavelength. The drive signal is further arranged to cause the R-SOA to apply a phase modulation to the upstream optical signal.
Public/Granted literature
- US20120033295A1 PASSIVE OPTICAL NETWORKS Public/Granted day:2012-02-09
Information query
