Study on gain recovery time of wavelength conversion based on single-port-coupled QD-SOA

CUI Lele; WANG Hailong; LI Wen; ZHANG Guo; GONG Qian

doi:10.7510/jgjs.issn.1001-3806.2016.05.026

To explore the gain recovery time of converted signal in detail, rate equations and light field transfer equations were solved based on all-optical wavelength cross-gain modulation (XGM) in a single-port-coupled quantum-dot semiconductor optical amplifier(QD-SOA) by utilizing the segment method and the forth-order Runge-Kutta method. The effects of various parameters, including injection current, rear facet reflectivity and the maximum modal gain on gain recovery time of a single-port-coupled QD-SOA was studied. The results show that the gain recovery time of a single-port-coupled QD-SOA can be decreased by increasing the injected current or rear facet reflectivity and decreasing the maximum modal gain. The low gain recovery time of a single-port-coupled QD-SOA can be achieved by optimizing these parameters.

Study on gain recovery time of wavelength conversion based on single-port-coupled QD-SOA

Corresponding author: WANG Hailong, hlwang@mail.qfnu.edu.cn;

1. College of Physics and Engineering, Qufu Normal University, Qufu 273165, China;

2. State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China

Received Date: 2015-06-10

Accepted Date: 2015-07-30

Available Online: 2016-09-25

Abstract: To explore the gain recovery time of converted signal in detail, rate equations and light field transfer equations were solved based on all-optical wavelength cross-gain modulation (XGM) in a single-port-coupled quantum-dot semiconductor optical amplifier(QD-SOA) by utilizing the segment method and the forth-order Runge-Kutta method. The effects of various parameters, including injection current, rear facet reflectivity and the maximum modal gain on gain recovery time of a single-port-coupled QD-SOA was studied. The results show that the gain recovery time of a single-port-coupled QD-SOA can be decreased by increasing the injected current or rear facet reflectivity and decreasing the maximum modal gain. The low gain recovery time of a single-port-coupled QD-SOA can be achieved by optimizing these parameters.

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Reference (15)

[1]	ROBERTO S,EUGENIO I,EMILIA P.Optical transport networks employing all-optical wavelength conversion:limits and features[J].IEEE Journal on Selected Areas in Communications,1996,14(5):968-978.
[2]	SHI Sh Sh,WANG H L,SUN L Q,et al.Theoretical study on extinction ratio of wavelength-converted optical signals based on QD-SOA-XGM[J].Communications Technology,2013(9):107-110(in Chinese).
[3]	TAO F Y,ZHAN L,YANG X L,et al.Group velocity manipulation of 10Gb/s signal by mutually-modulated cross-gain modulation in semiconductor optical amplifiers[J].IEEE Photonics Technology Letters,2014,26(6):606-608.
[4]	QASAIMEH O.Optical gain and saturation characteristics of quantum-dot semiconductor optical amplifiers[J].IEEE Journal of Quantum Electronics,2003,39(6):793-798.
[5]	WILKINSON S,LINGNAU B,KORN J,et al.Influence of noise on the signal quality of quantum-dot semiconductor optical amplifiers[J].IEEE Journal of Selected Topics in Quantum Electronics,2013,19(4):1900106.
[6]	SHEN S Q,LING Y,LIAO L D,et al.High pass filter characteristics of saturated quantum dot semiconductor optical amplifiers[J].Acta Optica Sinica,2014,34(10):1025001(in Chinese).
[7]	QU Y.The dynamic characteristics of RSOA[D].Harbin:Heilongjiang University,2011:29-34(in Chinese).
[8]	LI P L,HUANG D X,ZHANG X L,et al.Wavelength converter based on cross-gain modulation in multi-electrode single-port-coupled semiconductor optical amplifier[J].Acta Physica Sinica,2006,55(6):2746-2750(in Chinese).
[9]	GUO Q,TRAN A V.Performance enhancement in RSOA-based WDM passive optical networks using level coding[J].Journal of Lightwave Technology,2013,31(1):67-73.
[10]	JIN X Q,GROENEWALD J,HUGUES-SALAS E,et al.Upstream power budgets of IMDD optical OFDMA PONs incorporating RSOA intensity modulator-based colorless ONUs[J].Journal of Lightwave Technology,2013,31(12):1914-1920.
[11]	DONG J J,ZHANG X L,WANG Y,et al.Extinction ratio characteristics of wavelength converters based on single-port-coupled SOA[J].Laser Technology,2005,29(1):14-17(in Chinese).
[12]	LI X X,LI G F.Comments on Theoretical analysis of gain-recovery time and chirp in QD-SOA[J].IEEE Photonics Technology Letters,2006,11(18):2434-2435.
[13]	YU Y,HUANG L R,XIONG M,et al.Enhancement of gain recovery rate and cross-gain modulation bandwidth using a two-electrode quantum-dot semiconductor optical amplifier[J].Journal of the Optical Society of America,2010,B27(11):2211-2217.
[14]	LIU S,WANG H L,CHEN T T.Impact of facet reflectivity on single-port coupled SOA[J].Communications Technology,2015,48(2):161-164(in Chinese).
[15]	HUANG D X,ZHANG X L,HUANG L R.Semiconductor optical amplifiers and their applications[M].Beijing:Science Press,2012:139-141(in Chinese).

Study on gain recovery time of wavelength conversion based on single-port-coupled QD-SOA

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