Polarization Mode Noise in Ultra-low Drift Phase Reference Distribution System over a Fiber Network

Shen, Pengbo; Gomes, Nathan J.; Davies, P.A.; Shillue, Bill

doi:10.1109/mwp.2005.203598

Cited by 5 publications

(1 citation statement)

References 4 publications

(6 reference statements)

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“…Additionally, the lower bandwidth phase error correction part is implemented by altering the frequency of the SL using the internal PZT to the SL. The LS configuration has many challenges such as the State of Polarization Change (SOPC) of the resulting beat note that must be minimized since the resulting SOPC can be converted into phase [7] which could reduce the sensitivity of long term phase stabilization measurement. The resulting f LO-Ref phase noise result is compared with the scaled reference from a commercially available microwave synthesizer is shown in Figure 3 Ref [8].…”

Section: Photonic System Design Descriptionmentioning

confidence: 99%

Optical phase measurement and dynamic stabilization for a transmitted 81-GHz photonic ultra low phase noise reference through a SMF under controlled bending motion

Albanna

2008

SPIE Proceedings

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The ALMA project (Atacama Large Millimeter Array) is a collection of 50 radio telescopes that will be installed and operated in the high altitude desert of Atacama in northern Chile. The array is phased locked using a microwave reference generated from highly stable phase locked laser signals transmitted over 15km single mode fiber. In this paper we demonstrate the ability of generating and distributing high frequency photonic based microwave reference in a single mode fiber of 14 km to 2 of the ALMA radio telescopes. 81GHz photonic LO reference is generated and transmitted over the single mode fiber to the receivers of the 2 antennas. The paper will also present the method used to measure and dynamically stabilize the phase of the microwave photonics reference transmitted to 2 antennas while simulating antenna motion. The photonic phase correction system will null the unwanted phase in the microwave reference resulted from the motion of the telescope, maintaining coherence between the 2 antennas.

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Section: Photonic System Design Descriptionmentioning

confidence: 99%

Optical phase measurement and dynamic stabilization for a transmitted 81-GHz photonic ultra low phase noise reference through a SMF under controlled bending motion

Albanna

2008

SPIE Proceedings

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Signal Power Degradation Due To Polarization Mismatch in Dual-Wavelength Millimeter-Wave Fiber-Radio Systems

Zhou

Zhang

Xiao

et al. 2006

2006 6th International Conference on ITS Telecommunications

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RF power degradation introduced by optical polarization mismatch in dual-wavelength millmeter-wave fiber-radio systems is analyzed and presented. We show that, when effect of polarization-mode dispersion (PMD) can be ignored, both mismatch of polarization projects and polarization phase delays may influence the power of the generated millimeter-wave signal. When effect of polarization-mode dispersion is counted, the power degradation due to PMD can be aggravated or alleviated by polarization mismatch between the two optical wavelengths. All the above effects are numerically illustrated in the paper.

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The Temporal Drift Due to Polarization Noise in a Photonic Phase Reference Distribution System

Shen

Gomes

Shillue

et al. 2008

J. Lightwave Technol.

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 Abstract-The temporal drift due to the polarization noise in an ultra-low temporal drift photonic phase reference distribution system is analyzed. The temporal drift is shown to be associated with the polarization changes, the differential group delay of the subsequent parts, and, the state of polarization dispersion of the photonic local oscillator signal. Such temporal drift cannot be corrected by Line Length Correction schemes. As an example, polarization changes from a fiber stretcher are presented, discussed, and identified as one of the major contributors to the system temporal drift. A numerical model is developed. The magnitude and statistical distribution (based on random coupling) of the temporal drift excited by the polarization change of the fiber stretcher are investigated. Experimental work demonstrates that reduction in the polarization change successfully reduces the temporal drift, as predicted by the theory and simulation.

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Polarization Mode Noise in Ultra-low Drift Phase Reference Distribution System over a Fiber Network

Cited by 5 publications

References 4 publications

Optical phase measurement and dynamic stabilization for a transmitted 81-GHz photonic ultra low phase noise reference through a SMF under controlled bending motion

Optical phase measurement and dynamic stabilization for a transmitted 81-GHz photonic ultra low phase noise reference through a SMF under controlled bending motion

Signal Power Degradation Due To Polarization Mismatch in Dual-Wavelength Millimeter-Wave Fiber-Radio Systems

The Temporal Drift Due to Polarization Noise in a Photonic Phase Reference Distribution System

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