Abstract
We propose a remotely pumped Er-doped fiber amplifier (EDFA)-based 40-Gb/s downstream and 10-Gb/s
upstream transmission long-reach wavelength division multiplexing passive optical network (WDMPON) scheme with
downstream and upstream transmission implemented by quadrature phase-shift keying (QPSK) transceiver and
reflective semiconductor optical amplifier (RSOA)-based intensity modulation direct detection (IM-DD).
Transmissions of the 40-Gb/s QPSK downstream, using a Mach-Zehnder modulator, and the 10-Gb/s
non-return-to-zero on-off keying (NRZ-OOK) upstream, using a 1.2-GHz RSOA equalized by fiber Bragg grating
(FBG), are demonstrated with 40-km fiber transmission.
© 2013 Chinese Optics Letters
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