Experimental Investigation of Delay-Tap Sampling Technique for Online Monitoring of RZ-DQPSK Signals

Experimental Investigation of Delay-Tap Sampling Technique for Online Monitoring of RZ-DQPSK Signals

We experimentally demonstrate optical performance monitoring of 20-Gb/s return-to-zero differential quadrature phase-shift keying signals using an asynchronous delay-tap sampling technique. This method allows online monitoring of accumulated chromatic dispersion in the range from -600 to +600 ps/nm....

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Veröffentlicht in:IEEE photonics technology letters 2009-02, Vol.21 (3), p.179-181
Hauptverfasser: Kozicki, B., Maruta, A., Kitayama, K.-I.
Format: Artikel
Sprache:eng
Schlagworte:
Asynchronous sampling
Delay
Desktop publishing
differential quadrature phase-shift keying (DQPSK)
Dispersions
Fiber nonlinear optics
Monitoring
Monitors
Noise levels
Nonlinear optics
On-line systems
Online
optical communication
Optical fiber networks
Optical noise
optical performance monitoring (OPM)
Phase shift keying
Sampling
Sampling methods
Signal to noise ratio
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Beschreibung
Zusammenfassung:We experimentally demonstrate optical performance monitoring of 20-Gb/s return-to-zero differential quadrature phase-shift keying signals using an asynchronous delay-tap sampling technique. This method allows online monitoring of accumulated chromatic dispersion in the range from -600 to +600 ps/nm. We also show evaluation of optical signal-to-noise ratio at a level of 6.7 dB and monitor operation at input power of -16 dBm.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2008.2009883