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Related Experiment Video

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Generation and Coherent Control of Pulsed Quantum Frequency Combs

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

OFDM modulated WDM-ROF system based on PCF-Supercontinuum.

Lijia Zhang¹, Xiangjun Xin, Bo Liu

¹School of Electronic Engineering, Beijing University of Posts and Telecommunications (BUPT), 10 XiTuCheng Road, Beijing, 100876, China.

|July 20, 2010

Summary

This summary is machine-generated.

This study introduces a new radio over fiber (ROF) system using orthogonal frequency division multiplexing (OFDM) and a photonic crystal fiber (PCF) light source. The system successfully transmits both downstream and upstream signals for wired and wireless applications.

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Area of Science:

Optoelectronics
Telecommunications Engineering
Photonics

Background:

Radio over fiber (ROF) systems are crucial for high-speed data transmission, merging optical and wireless communication.
Existing ROF systems face challenges in multi-wavelength generation and signal processing for diverse applications.
Orthogonal frequency division multiplexing (OFDM) offers robust spectral efficiency for advanced modulation schemes.

Purpose of the Study:

To propose and demonstrate a novel OFDM-modulated WDM ROF system.
To utilize a single photonic crystal fiber (PCF) supercontinuum (SC) source for multi-wavelength generation.
To achieve simultaneous wired and wireless ROF access.

Main Methods:

Employed a single PCF supercontinuum source for generating multiple wavelengths.
Utilized fiber Bragg gratings (FBGs) to select and isolate four 40-GHz ROF channels.
Demonstrated 1-Gb/s 16-Quadrature Amplitude Modulation (16QAM)-OFDM downstream signal transmission.
Transmitted a 1-Gb/s On-Off Keying (OOK) upstream signal.

Main Results:

Successfully demonstrated 1-Gb/s 16QAM-OFDM downstream signal transmission over 20-km standard single mode fiber (SMF).
Achieved successful transmission for both wired and wireless ROF access applications.
Transmitted a 1-Gb/s OOK upstream signal over 20-km SMF with a low power penalty (<0.4 dB).

Conclusions:

The proposed OFDM-modulated WDM ROF system effectively integrates wired and wireless access.
The use of a PCF SC source and FBGs provides a flexible and efficient multi-wavelength solution.
The system demonstrates high performance for high-speed data transmission in access networks.