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- Tom A. Director, PLM at a tier 1 communication network company
WDM-PON: OLT/ONU Transceivers Based on Injection-Locking
WDM-PON architecture has a star topology serving a total of up to 32(extendable to 40) subscribers in 1x32 arrayed waveguide gratings(AWGs) with 100GHz spacing at the remote node(RN). The up and downstream bidirectional transceivers are located with central office and subscriber. Luxpert’s optic module for C/L-band WDM-PON consists of bidirectional transceiver and broadband lightwave source(BLS). The bidirectional transceiver functions as a low cost multi-wavelength source. By using a fabry-perot laser diode instead of a complex and expensive DFB laser diode the benefits are low cost, compact size and low power consumption. This eventually makes the WDM-PON system cost effective. L band is used in the downstream and C band in the upstream.
To our knowledge, LuXpert is the unique vendor for the commercially available C/L band BiDi module/transceiver. The transceiver supports transmission rate of 125Mbps. Broadband lightwave source(BLS) is a C/L band source in a one body module, which is used as injection seed for wavelength locking. It is so compact to be installed into system easily. This provides broadband high output power in C band and L band based on EDFA which is a proven technology in the optical communication for years. It also supports isolate, depolarized and flattened output.
- Cost effective module for WDM-PON in FTTH
- One body C/L band bidirectional TRx
- 32 channels(up to 40 channels)
- Up to 20km transmission distance range
- Most commonly used band in WDM network : C band for upstream, L band for downstream
- One body C/L band BLS module
- 125Mbps transmission rate
- 1.25Gbps transmission rate(near the future)
- 100GHz spacing
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