Predistortion Compensation of Nonlinearities in Channelized RF Photonic Links Using a Dual-Port Optical Modulator

被引：43

作者：

Agarwal, A. ^{[1
]}

Banwell, T. ^{[1
]}

Toliver, P. ^{[1
]}

Woodward, T. K. ^{[1
]}

机构：

[1] Telcordia Technol, Red Bank, NJ 07701 USA

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2011年 / 23卷 / 01期

关键词：

Channelization; fiber optics; microwave photonics; phase modulation;

D O I：

10.1109/LPT.2010.2090040

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

High dynamic range is a key requirement in analog applications. In multichannel optical signal processing applications, a wideband radio-frequency signal suffers from distortion from both in-channel and out-of-channel signals due to non-linear modulator behavior. We demonstrate experimentally the compensation of nonlinearities occurring due to out-of-channel "cross-modulation" with a novel predistortion technique using a dual-port modulator. Predistortion compensation results in suppression of distortion by more than 25 dB.

引用

页码：24 / 26

页数：3

共 7 条

[1]

AGARWAL A, OPT FIB COMM OFC NFO

[2]

BANWELL T, OPT FIB COMM 2010 SA

[3] LINEARIZED MODULATOR FOR SUBOCTAVE-BANDPASS OPTICAL ANALOG LINKS [J].