Any Bias Point Control Technique for Mach–Zehnder Modulator

Author

Yupeng Li ; Yangan Zhang ; Yongqing Huang

Author_Institution

State Key Lab. of Inf. Photonics & Opt. Commun., Beijing Univ. of Posts & Telecommun., Beijing, China

Volume

25

Issue

24

fYear

2013

fDate

Dec.15, 2013

Firstpage

2412

Lastpage

2415

Abstract

A versatile any point bias control scheme for the Mach-Zehnder modulator is proposed. The ratio of first-order harmonic and average output power was used as feedback signal. We also demonstrate its effectiveness with simulations and experiments. This technique has been shown to be independent of optical input power to the modulator. The results show that this is an effective bias control technique suitable for a variety of modulation formats. The penalty for locking is small and it is 0.5 dB in OSNR penalty. The system BER performance has been observed for 72 h without degradation.

Keywords

error statistics; optical communication equipment; optical control; optical modulation; Mach-Zehnder modulator; OSNR penalty; feedback signal; first-order harmonics; modulation formats; optical input power; output power; system BER performance; time 72 h; versatile any point bias control scheme; Adaptive optics; Harmonic analysis; Optical feedback; Optical modulation; Optical noise; Optical receivers; Optical communications; modulation; modulators;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2013.2285184

Filename

6626575