Journal ArticleDOI
OSNR Monitoring Method for OOK and DPSK Based on Optical Delay Interferometer
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TLDR
In this article, the authors describe a simple method to measure the optical signal-to-noise ratio (OSNR) of on-off-keying (OOK) and differential phase-shift keying (DPSK) signals using an optical delay interferometer (ODI) having a sinusoidal and tunable passband.Abstract:
We describe a simple method to measure the optical signal-to-noise ratio (OSNR) of on-off-keying (OOK) and differential phase-shift-keying (DPSK) signals by using an optical delay interferometer (ODI) having a sinusoidal and tunable passband. This OSNR monitoring method is independent of chromatic dispersion, polarization-mode dispersion, and noise polarization. We show experimentally that accurate OSNR measurements are made for a 10-Gb/s OOK signal by using a 1-bit ODI and a 40-Gb/s DPSK signal by using a partial-bit ODI with the OSNR ranging from 5 to 25 dB.read more
Citations
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Journal ArticleDOI
Optical Performance Monitoring: A Review of Current and Future Technologies
TL;DR: The development of various OPM techniques for direct-detection systems and digital coherent systems are reviewed and future OPM challenges in flexible and elastic optical networks are discussed.
Journal ArticleDOI
Machine Learning Techniques for Optical Performance Monitoring and Modulation Format Identification: A Survey
TL;DR: A comprehensive review of the available ML-based techniques for MFI, OPM, and joint MFI/OPM, describing their performance, advantages, and limitations and some lessons learned are presented to help the reader identify the gaps, weaknesses, and strengths.
Journal ArticleDOI
In-band OSNR monitoring using a pair of Michelson fiber interferometers
TL;DR: Two polarization-independent Michelson fiber interferometers were used to measure the in-band OSNR of an optical signal from 5 to 30 dB within an accuracy of 0.5 dB using an expansion of the amplitude autocorrelation function of the signal around zero delay.
Journal ArticleDOI
Interband Four-Wave Mixing in Semiconductor Optical Amplifiers With ASE-Enhanced Gain Recovery
TL;DR: In this paper, the authors studied the effect of amplification of spontaneous emission (ASE) on interband four-wave mixing in optical amplifiers, and showed that the use of relatively low pump powers (<; 1 mW) reduces the electrical power consumption for such wavelength converters by more than a factor of 10.
Journal ArticleDOI
Demonstration of in-service wavelength division multiplexing optical-signal-to-noise ratio performance monitoring and operating guidelines for coherent data channels with different modulation formats and various baud rates.
Mohammad Reza Chitgarha,Salman Khaleghi,Wajih Daab,Ahmed Almaiman,Morteza Ziyadi,Amirhossein Mohajerin-Ariaei,Devora Rogawski,Moshe Tur,Joseph D. Touch,Vijay Vusirikala,Wendy Zhao,Alan E. Willner +11 more
TL;DR: This work demonstrated a delay-line interferometer (DLI)-based, optical-signal-to-noise ratio (OSNR) monitoring scheme of 100 Gbit/s polarization multiplexed quadrature-phase-shift-keying (PM-QPSK) four-channel WDM at 50-GHz International Telecommunication Union (ITU) grid with <0.5” dB error.
References
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Journal ArticleDOI
Optical performance monitoring
Daniel C. Kilper,R. Bach,Daniel J. Blumenthal,D. Einstein,Taha Landolsi,L.M. Ostar,M. Preiss,Alan E. Willner +7 more
TL;DR: In this paper, the role of OPM as an enabling technology for advances in high-speed and optically switched networks is examined, with the focus on fault management and QoS monitoring in the optical domain.
Journal ArticleDOI
OSNR monitoring technique using polarization-nulling method
TL;DR: In this article, a simple technique for monitoring the optical signal-to-noise ratios (OSNRs) of wavelength-division-multiplexed (WDM) signals is presented.
Journal ArticleDOI
Demonstration of 42.7-Gb/s DPSK receiver with 45 photons/bit sensitivity
TL;DR: In this paper, a record sensitivity of -36.2 dBm at 1552.5-nm wavelength (45 photons/bit) is reported for an optically preamplified receiver operating at 42.7 Gb/s.
Journal ArticleDOI
PMD-insensitive OSNR monitoring based on polarization-nulling with off-center narrow-band filtering
TL;DR: In this article, the use of polarization nulling with off-center narrow-band filtering to realize a new polarization-mode dispersion (PMD)-insensitive in-band optical signal-to-noise ratio monitoring scheme was proposed and experimentally demonstrated.
Journal ArticleDOI
Measurement of OSNR in the presence of partially polarized ASE
TL;DR: In this paper, the effect of partially polarized amplified spontaneous emission (ASE) on the measurement and interpretation of the optical signal-to-noise ratio (OSNR) using the polarization-nulling method was investigated.