Coherent Wavelength Conversion in a Quantum Dot SOA

Author

Contestabile, G. ; Yoshida, Yutaka ; Maruta, Akihiro ; Kitayama, K.

Author_Institution

Scuola Superiore Sant´Anna, Pisa, Italy

Volume

25

Issue

9

fYear

2013

fDate

1-May-13

Firstpage

791

Lastpage

794

Abstract

We experimentally demonstrate wavelength conversion of coherent signals in an InAs/InGaAsP/InP columnar quantum dot semiconductor optical amplifier by using low power single pump four-wave-mixing. We report highly efficient conversion, i.e., 30 nm conversion span with a conversion efficiency larger than -10 dB and output optical signal to noise ratio larger than 20 dB. Transparency to coherent modulation formats is demonstrated in a 25 nm conversion of 10 GBaud quadrature phase shift keying (QPSK), 8-phase shift keying (PSK) and 16-quadrature amplitude modulation (QAM) signals. We found 0.9 to 1.1 dB optical signal to noise ratio penalty at forward error correction error free limit of 2 × 10^-3 bit error rate for all the signals.

Keywords

III-V semiconductors; error statistics; forward error correction; gallium arsenide; indium compounds; multiwave mixing; optical pumping; quadrature amplitude modulation; quadrature phase shift keying; semiconductor optical amplifiers; semiconductor quantum dots; 16-quadrature amplitude modulation; 8-phase shift keying; InAs-InGaAsP-InP; InAs-InGaAsP-InP columnar quantum dot; QAM signals; QPSK; bit error rate; coherent modulation; coherent wavelength conversion; error free limit; forward error correction; four-wave-mixing; low power single pump; quadrature phase shift keying; quantum dot SOA; semiconductor optical amplifier; transparency modulation; Bit error rate; Optical noise; Optical transmitters; Optical wavelength conversion; Quantum dots; Semiconductor optical amplifiers; Signal to noise ratio; Coherent modulation formats; four wave mixing (FWM); quantum dot (QD); semiconductor optical amplifier (SOA); wavelength conversion;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2013.2250495

Filename

6475151