An Optical Domain Combined Dual-Loop Optoelectronic Oscillator

An Optical Domain Combined Dual-Loop Optoelectronic Oscillator

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 withou...

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Veröffentlicht in:IEEE photonics technology letters 2007-06, Vol.19 (11), p.807-809
Hauptverfasser: Jiang Yang, Jin-Long, Y., Wang Yao-Tian, Zhang Li-Tai, Yang En-Ze
Format: Artikel
Sprache:eng
Schlagworte:
Beat noise
Carriers
Devices
High speed optical techniques
Noise
Noise levels
Optical coupling
Optical devices
Optical feedback
Optical filters
Optical noise
Optical resonators
optoelectronic oscillator (OEO)
Optoelectronics
Oscillators
Phase noise
Photodetectors
Photonics
Q values
sidemode suppressing
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Zusammenfassung: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 10 10 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
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2007.897290