Περίληψη:
We propose and experimentally demonstrate a photonic integrated circuit
(PIC) that operates as an optical equalizer (OE) with multi-rate and
multi-channel capability. The OE has the structure of a 3-tap direct
form finite impulse response (FIR) filter and is based on the use of
micro-ring resonators (MRRs) for the tuning of its delay lines. The PIC
is fabricated on TriPleX platform and has 17 reconfigurable elements in
total including nine MRRs, five optical couplers and three standalone
phase shifters. Using this OE in an on-off keying system with bandwidth
limitations we achieve an eye-diagram opening improvement more than 14
dB working with signals at 4.67 and 5.84 Gbaud both in single- and
dual-channel operation. Extension to higher modulation formats is
direct. Extension to higher symbol rates is also possible via the use of
smaller MRRs.
Συγγραφείς:
Kouloumentas, Christos
Tsokos, Christos
Groumas, Panos and
Gounaridis, Lefteris
Raptakis, Adam
Mylonas, Elias and
Andrianopoulos, Efstathios
Worhoff, Kerstin
Lawniczuk, Katarzyna
and Leinse, Arne
Avramopoulos, Hercules
