An Optical Domain Combined Dual-Loop Optoelectronic Oscillator

Author

Yang, Jiang ; Jin-Long, Yu ; Yao-Tian, Wang ; Li-Tai, Zhang ; En-Ze, Yang

Author_Institution

Sch. of Electr. & Inf. Eng., Tianjin Univ.

Volume

19

Issue

11

fYear

2007

fDate

6/1/2007 12:00:00 AM

Firstpage

807

Lastpage

809

Abstract

A dual loop optoelectronic oscillator (OEO) is able to effectively suppress the sidemodes in each single loop. In this paper, a dual-loop OEO scheme is reported. By utilizing a polarization-beam splitter and a polarization-beam combiner, the two loops are directly joined in the optical domain without adding any active electrical device. The laser´s phase-to-intensity noise is discussed. We present free-running experimental results, which show a phase noise of -109 dBc/Hz at 10kHz away from the carrier (12 GHz) and a Q value of 10¹⁰ with a sidemode suppression ratio of 60 dB, which is improved by 30-50dB in the experimental comparison. Meanwhile, the experimental comparison indicates that no significant noise is introduced by this configuration

Keywords

integrated optics; integrated optoelectronics; laser noise; light polarisation; optical beam splitters; phase noise; 10 kHz; 12 GHz; dual-loop oscillator; optical domain; optoelectronic oscillator; phase noise; phase-to-intensity noise; polarization-beam combiner; polarization-beam splitter; sidemode suppression ratio; High speed optical techniques; Optical coupling; Optical devices; Optical feedback; Optical filters; Optical noise; Optical resonators; Oscillators; Phase noise; Photodetectors; Beat noise; optoelectronic oscillator (OEO); phase noise; sidemode suppressing;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2007.897290

Filename

4162571