October 2007
Intermediate to advanced
368 pages
10h 55m
English
Content preview from Passive Optical Networks
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and subsystems. The ONU side consists of a downstream receiver (Rx) and an
upstream transmitter (Tx), while the OLT side consists of a downstream Tx and
an upstream receiver Rx. The upstream Tx contains a BM laser driver (BM-LDD)
and an F-P laser in TOSA transmit optical subassembly (TOSA) form. The
upstream Rx contains a PIN or APD/TIA in receive optical subassembly
(ROSA) format, a limiting amplifier (post-amp) and a burst-mode clock/data
recovery (BM-CDR) unit. For both the ONU and the OLT, the transmitter and
receiver sections are combined onto a single optical fiber though a wavelength-
division-multiplexing (WDM) coupler.
Three burst-mode chips are identified as key enablers for PON upstream
burst-mode transmission: a BM-LDD with fast and accurate ...
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