AOI Targets WDM-PON
The new transceiver incorporates a specially-designed laser diode that accepts an injection-locking signal from a transmitter in the head-end portion of the WDM-PON. The transmission wavelength of the laser diode locks onto the wavelength of this locking signal. By utilizing this transceiver in the ONT, it is possible to design a single, “colorless” ONT that can operate at any wavelength needed in the upstream direction of the WDM-PON.
The current device supports WDM-PON applications where the upstream signals are in the optical C-band (from 1533-nm to 1560-nm) and the downstream signals are in the optical L-band (from 1573-nm to 1600-nm).
The device is electrically hot-pluggable and communicates over the 2-wire serial interface as specified in the SFP Multi Source Agreement. Digital diagnostic monitoring is provided in compliance with SFF-8472.
The current devices operate at speeds up to 125 Mbps and have fiber pigtails for flexible installation options within the ONT.
“AOI believes strongly in WDM-PON technology,” comments Dr. Chau-Hong Kuo, Transceiver Product Manager at AOI. “We believe that this new transceiver will accelerate the development of this next-generation PON technology by allowing our equipment manufacturer customers to build their systems around a pluggable standards-based SFP solution.”
Applied Optoelectronics Inc. (AOI)