RSOA Intensity Modulator Frequency Chirp-Enhanced Optical OFDM PON Performance

被引：2

作者：

Cao, B. Y. ^{[1
,2
]}

Deng, M. L. ^{[2
,3
]}

Zhang, Q. W. ^{[1
]}

Giddings, R. P. ^{[2
]}

Wang, M. ^{[1
]}

Tang, J. M. ^{[2
]}

机构：

[1] Shanghai Univ, Key Lab Specialty Fiber Opt & Opt Access Networks, Shanghai 200072, Peoples R China

[2] Bangor Univ, Sch Elect Engn, Bangor LL57 1UT, Gwynedd, Wales

[3] Univ Elect Sci & Technol China, Key Lab Opt Fiber Sensing & Commun Networks, Chengdu 611731, Peoples R China

来源：

IEEE PHOTONICS JOURNAL | 2015年 / 7卷 / 03期

基金：

上海市科技启明星计划;

关键词：

Reflective semiconductor optical amplifiers (RSOAs); frequency chirp; fiber optics systems; orthogonal frequency-division multiplexing (OFDM); ACCESS NETWORKS; TRANSMISSION; OPERATION; SYSTEMS;

D O I：

10.1109/JPHOT.2015.2439261

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：

A reflective semiconductor optical amplifier intensity modulator (RSOA-IM) frequency chirp considerably increases the system frequency response of an intensity-modulation and direct-detection (IMDD) PON system over the passband signal spectral region. Adaptive bit and power loading of optical OFDM (OOFDM) enables full use of the RSOA-IM frequency chirp-enhanced passband system frequency response characteristics. As a direct result, without requiring extra electrical and optical equalization schemes, an RSOA-IM with a 3-dB small-signal modulation bandwidth as low as 1 GHz can support 40 Gb/s OOFDM signal transmissions over 25 km SSMF IMDD PON systems free from optical amplification and chromatic dispersion compensation. This paper suggests that significantly relaxed requirements on both RSOA-IM's 3-dB small-signal modulation bandwidth and frequency chirp are feasible for achieving desired OOFDM transmission performances for next-generation PONs.

引用

页数：11

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