Reusing a data-erased ASE carrier in a weak-resonant-cavity laser diode for noise-suppressed error-free transmission
Journal
IEEE Journal of Quantum Electronics
Journal Volume
47
Journal Issue
5
Pages
676-685
Date Issued
2011
Author(s)
Abstract
Under injection-locking with downstream amplified spontaneous emission (ASE) carrier spectrally sliced by a 200-GHz arrayed waveguide grating and amplitude-squeezed by a gain-saturated semiconductor optical amplifier (SOA), the injection-level-dependent extinction ratio (ER) and bit-error-rate (BER) penalty of a weak-resonant-cavity Fabry-Perot laser diode (WRC-FPLD) upstream transmitter are investigated. By fixing the downstream power at -13 dBm, the downstream ASE data is amplitude-squeezed by the gain-saturated SOA to greatly suppress the ER from 12.6 to 2.2 dB, which improves the BER of upstream data carried by the reused ASE in the WRC-FPLD. By reusing the amplitude-squeezed downstream ASE carrier in the upstream WRC-FPLD, such a single ASE-based bidirectional channelized transmission network provides downstream and upstream receiving sensitivities of -9 after 25 km transmission.
Type
journal article