WDM PON using 10-Gb/s DPSK downstream and re-modulated 10-Gb/s OOK upstream based on SOA

doi:10.1007/s12200-010-0114-9

Front Optoelec Chin

2010, Vol. 3

Issue (4) : 339-342 https://doi.org/10.1007/s12200-010-0114-9

RESEARCH ARTICLE

WDM PON using 10-Gb/s DPSK downstream and re-modulated 10-Gb/s OOK upstream based on SOA

Jing HUANG(

), Deming LIU

Wuhan National Laboratory for Optoelectronics, College of Optoelectronic Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China

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Abstract

A signal remodulation scheme of 10-Gb/s differential phase-shift keying (DPSK) downstream and 10-Gb/s on-off keying (OOK) upstream using a semiconductor optical amplifier (SOA) and a Mach-Zehnder intensity modulator (MZ-IM) at the optical networking unit (ONU) side for wavelength division multiplexed passive optical network (WDM PON) is proposed. Simulation results indicate that error-free operation can be achieved in a 20-km transmission, and the receiver sensitivity of return-to-zero differential phase-shift keying (RZ-DPSK) is higher than nonreturn-to-zero differential phase-shift keying (NRZ-DPSK) in the proposed scheme.

Keywords wavelength division multiplexed passive optical network (WDM PON) differential phase-shift keying (DPSK) semiconductor optical amplifier (SOA)

Corresponding Author(s): HUANG Jing,Email:langhai@gmail.com

Issue Date: 05 December 2010

Cite this article:

Jing HUANG,Deming LIU. WDM PON using 10-Gb/s DPSK downstream and re-modulated 10-Gb/s OOK upstream based on SOA[J]. Front Optoelec Chin, 2010, 3(4): 339-342.

URL:

https://academic.hep.com.cn/foe/EN/10.1007/s12200-010-0114-9
https://academic.hep.com.cn/foe/EN/Y2010/V3/I4/339

Fig.1 Proposed WDM PON system

Fig.2 Simulation model setup of proposed WDM PON link

Fig.3 Eye diagram of downstream NRZ-DPSK and upstream OOK. (a) NRZ-DPSK at back-to-back; (b) NRZ-DPSK after 20-km transmission; (c) re-modulated OOK at back-to-back; (d) re-modulated OOK after 20-km transmission

Fig.4 Eye diagram of downstream RZ-DPSK and upstream OOK. (a) RZ-DPSK at back-to-back; (b) RZ-DPSK after 20-km transmission; (c) re-modulated OOK at back-to-back; (d) re-modulated OOK after 20-km transmission

Fig.5 BER measurements of downstream NRZ-DPSK and upstream OOK

Fig.6 BER measurements of downstream RZ-DPSK and upstream OOK

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