An all‐optical OCDMA encoder with simultaneous signal regeneration based on fiber four‐wave mixing

Abstract

A new all‐optical optical code division multiple access encoder that simultaneously regenerates input signals is proposed and experimentally investigated. The device is based on a fiber four‐wave mixing and experimental results show that eye penalties may be decreased up to 5.1 dB. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:1024–1028, 2014

Dual-pattern communication system using DBR laser in the intensity-modulation and direct-detection system

“…Compared with other methods for secure communication, the hidden communication is more attractive due to its low cost, mature technical conditions, and flexible implementation advantages. 12,13 On the other hand, intensity modulation and direct detection (IM-DD) systems are widely used due to their low power consumption and low cost, 14 and the distributed Bragg reflector (DBR) laser is promising owing to its easy construction, compact size, and good long-term reliability. [15][16][17] In this paper, we proposed a dual-pattern communication system based on the IM-DD system using the DBR laser to establish a high-speed, low cost, and secure optical communication system.…”