Error probability performance of a short-reach multicore fiber optical interconnect transmission system

Abstract

A stand alone module for rectangular array multicore fiber (MCF) based optical interconnect (OI) is realized, which includes inherent inter-core crosstalk and provides space division multiplexed (SDM) coupling/decoupling of optical power. The module is integrated in a short reach communication system to provide bit error probability (BEP). Next, closed form equation for BEP applicable to MCF OI with inter-core crosstalk is derived. For characteristic parameters of the module, results obtained by two approaches agree within 1% for 40 Gbps per channel and predicts error free transmission of aggregated data rate of 2.5 Tbps through the MCF OI under consideration.

Augmenting data rate performance for higher order modulation in triangular index profile multicore fiber interconnect

“…After solving the integral of Eq. (5), the conditional error probability at the receiver is obtained as [21] 22…”

“…Since, '0' and '1' are equally probable to occur at the input of MCF interconnects transmission system, the bit error probability (BEP) or equivalently SEP for coherent BPSK system is expressed as [21]    …”

“…3(a) [21]. Each polarization multiplexed transmitter block consists of individual transmitters configured using two nested Mach-Zehnder modulators.…”

“…Continuous wave optical source at 1550 nm is tuned to give 100 kHz linewidth optical carrier which is fed into an integrated modulator. In modulator pseudo-random bit sequence (PRBS) of period 2 15 −1 is selected to modulate the phase of the optical carrier [21]. is shown in Fig.…”

“…is shown in Fig. 3(b) [21]. In the equivalent module, the modulated QPSK signal is splitted into eight channels representing 8 cores of MCF having optical transmission of 100 m of SSMF [21].…”