Constructed MC-CDMA LR-PON With Colorless Laser Diode and Multicode Interference Cancellation DSP

A Simplified Radio-Over-Fiber System for Over 100-km Long-Reach n-QAM Transmission

“…If we further increase the driving current, it would only increase the optical carrier power and the carrier-to-signal power ratio (CSPR). In a fixed received power system, SNR of the desired signal reduces as the CSPR increases [25]. However, the average output power of the DML is decreased when a lower driving current is applied and it may defeat the purpose of getting rid of the optical amplifier.…”

Projected block‐wise PIC detection for communication systems with non‐negativity constraints

“…In addition to these merits, OCDMA technology has inherent resistance to intentional jamming [3, 4]. Many OCDMA‐PON prototypes and demonstrations have been developed in the literature [5–8], for example the authors in [5] built a 40G‐OCDMA‐PON prototype with an asymmetric structure using a single multi‐port and sampled super structured fibre Bragg grating (SSFBG) encoder/decoders whereas the authors in [6, 7] built a 10G‐OCDMA‐PON demonstration with an asymmetric structure using cascaded multi‐port E/Ds and colourless and sourceless optical network unit (ONU)s, respectively. The performance of multi‐carrier code division multiple access (MC‐CDMA) long reach PON implemented with colourless laser diode transmitter is evaluated and tested in [8].…”