Peter Magill - Profile on Academia.edu (original) (raw)

Papers by Peter Magill

Long-distance transmission experiment at 2.5 Gbit/s using an integrated laser/modulator grown by selective-area MOVPE

1200km Transmission of 50GHz spaced, 5×504-Gb/s PDM-32-64 hybrid QAM using electrical and optical spectral shaping

Employing time-domain hybrid QAM and electrical and optical shaping, we successfully transmitted ... more Employing time-domain hybrid QAM and electrical and optical shaping, we successfully transmitted five 504Gbits/s PDM-32/64QAM DWDM signals at 8.4b/s/Hz net spectral efficiency (SE) over a record 12×100km reach (for WDM SE>4b/s/Hz) and one 50GHz-grid ROADM.

PMD of installed fiber - an overview

Polarization mode dispersion (PMD) of installed fiber are studied. Data from a standard high-fibe... more Polarization mode dispersion (PMD) of installed fiber are studied. Data from a standard high-fiber count, buried, ducted cable of recent vintage (c. 1999) NZ-DSF fiber (True Wave Reduced Slope) are presented. This includes long-term measurements from interferometric and wavelength-scanned techniques as well as a new in-situ technique. Some of the challenges for PMD are also discussed.

Cascaded Two-Modulus Algorithm for Blind Polarization De-Multiplexing of 114-Gb/s PDM-8QAM Optical Signals

Optical Fiber Communication Conference and National Fiber Optic Engineers Conference, 2009

ABSTRACT 8-QAM optical signal is generated using a parallel I/Q modulator and a phase modulator w... more ABSTRACT 8-QAM optical signal is generated using a parallel I/Q modulator and a phase modulator with binary drive signals. Blind polarization de-multiplexing of 60 and 114-Gb/s PDM-8QAM is demonstrated using a new cascaded two-modulus algorithm.

Measurements of the polarization dependent loss of multiple WDM channels in an installed, long-haul terrestrial link

IEEE Photonics Society Summer Topicals 2010, 2010

ABSTRACT We report continuous, multiple-day measurements of polarization-dependent loss (PDL) of ... more ABSTRACT We report continuous, multiple-day measurements of polarization-dependent loss (PDL) of several C-band channels on an installed 1800-km terrestrial link. The PDL varies on a time-scale of hours, and the PDL of adjacent channels often track.

A regression approach to infer electricity consumption of legacy telecom equipment

ACM SIGMETRICS Performance Evaluation Review, 2011

Communications technology has great potential for helping other industries reduce their greenhous... more Communications technology has great potential for helping other industries reduce their greenhouse gas emissions. Nevertheless, given the relentless growth of demand for communications services, telecommunications providers will need to transition to more energy-efficient technology in order to limit their own environmental footprint. Here we focus on priority-setting for the transition process. We introduce a method for statistically inferring the electricity consumption of different components of the installed base of telecommunications equipment, while avoiding the high cost of performing direct measurements. Our method relies only on databases of installed equipment in central offices, together with aggregate electricity consumption per office. It takes advantage of inter-office variation in installed equipment to partition per-office electricity consumption by major equipment type. When applied to a collection of 3,918 central offices of a major U.S. telecommunications provider, our approach reveals the (previously unknown) network-wide energy consumption of each major type of equipment. In particular, we find that electricity consumption is dominated by Class-5 telephone switches, which account for 43% of aggregate consumption, and which should therefore be a primary target of central office electricity conservation efforts.

64-Tb/s (640x107-Gb/s) PDM-36QAM Transmission over 320km Using Both Pre- and Post-Transmission Digital Equalization

National Fiber Optic Engineers Conference, 2010

... Note that pre-equalization of deterministic transmitter filtering effects is better than post... more ... Note that pre-equalization of deterministic transmitter filtering effects is better than post-equalization because post-equalization will enhance noise components and thus reduces the signal-to-noise ratio (compare Fig. 1b and 1c). ...

17 Tb/s (161×114 Gb/s) PolMux-RZ-8PSK transmission over 662 km of ultra-low loss fiber using C-band EDFA amplification and digital coherent detection

2008 34th European Conference on Optical Communication, 2008

Employing PolMux-RZ-8PSK modulation and coherent detection, we demonstrate 25 GHz-spaced, 161time... more Employing PolMux-RZ-8PSK modulation and coherent detection, we demonstrate 25 GHz-spaced, 161times114 Gb/s DWDM transmission through eight spans of ultra-low-loss fiber (average span length/loss of 82.75 km/14.6 dB) with a record capacity of 17 Tb/s (spectral efficiency 4.2 b/s/Hz) within the C-band EDFA bandwidth (4.025 THz).

32Tb/s (320x114Gb/s) PDM-RZ-8QAM Transmission over 580km of SMF-28 Ultra-Low-Loss Fiber

Optical Fiber Communication Conference and National Fiber Optic Engineers Conference, 2009

Abstract: Employing PDM-RZ-8QAM modulation, digital coherent detection and EDFA-only amplificatio... more Abstract: Employing PDM-RZ-8QAM modulation, digital coherent detection and EDFA-only amplification, we demonstrate 25 GHz-spaced, 320×114Gb/s DWDM transmission through seven spans of ultra-low-loss fiber (average span length/loss of 82.8 km/14.6 dB) with a record ...

Field PMD measurements through a commercial, Raman-amplified ULH transmission system

2003 Digest of LEOS Summer Topical Meeting (Cat. No.03TH8701), 2003

ABSTRACT Detailed PMD measurements on a field-deployed 986 km commercial system find anomalous PM... more ABSTRACT Detailed PMD measurements on a field-deployed 986 km commercial system find anomalous PMD contributions of approximately 0.6 ps/node beyond that of the transmission fiber. Dramatic changes in the PMD spectrum due to temperature sensitive components were observed.

Design, Fabrication And Performance Of A Very High Side-mode-suppression-ratio Distributed-Bragg-reflector Laser

LEOS '92 Conference Proceedings, 1992

ABSTRACT

Technique for in-situ measurements of polarization mode dispersion

Journal of Lightwave Technology, 2003

ABSTRACT A non-disruptive PMD measurement technique (utilizing the sidebands of working channels)... more ABSTRACT A non-disruptive PMD measurement technique (utilizing the sidebands of working channels) is demonstrated, compared to the Mueller Matrix Method, and applied to a 43Gb/s field-installed system. Correlation between Differential Group Delay and Bit-Error Rate is observed.

Long-term" PMD characterization of installed fibers-how much time is adequate?

ABSTRACT We performed long-term differential group delay (DGD) measurements on multiple installed... more ABSTRACT We performed long-term differential group delay (DGD) measurements on multiple installed fiber spans. Unexpectedly, the statistical distributions of these measurements deviate strongly from existing theory. We offer evidence that analysis of measurement statistics themselves can indicate their validity.

Optics Express, 2015

We report a hybrid integrated external cavity, multi-wavelength laser for high-capacity data tran... more We report a hybrid integrated external cavity, multi-wavelength laser for high-capacity data transmission operating near 1310 nm. This is the first demonstration of a single cavity multi-wavelength laser in silicon to our knowledge. The device consists of a quantum dot reflective semiconductor optical amplifier and a silicon-on-insulator chip with a Sagnac loop mirror and microring wavelength filter. We show four major lasing peaks from a single cavity with less than 3 dB power non-uniformity and demonstrate error-free 4 × 10 Gb/s data transmission.

32Tb/s (320×114Gb/s) PDM-RZ-8QAM transmission over 580km of SMF-28 ultra-low-loss fiber

Employing PDM-RZ-8QAM modulation, digital coherent detection and EDFA-only amplification, we demo... more Employing PDM-RZ-8QAM modulation, digital coherent detection and EDFA-only amplification, we demonstrate 25 GHz-spaced, 320times114Gb/s DWDM transmission through seven spans of ultra-low-loss fiber (average span length/loss of 82.8 km/14.6 dB) with a record capacity of 32Tb/s.

Real-Time Detection of a 40 Gbps Intradyne Channel in the Presence of Multiple Received WDM Channels

Optical Fiber Communication Conference, 2010

ABSTRACT We characterize a single-ended intradyne receiver’s performance when multiple channels a... more ABSTRACT We characterize a single-ended intradyne receiver’s performance when multiple channels are received without optical demultiplexing. A 40Gb/s dual-polarization QPSK channel is recovered from 16 interfering channels with less than 2dB OSNR penalty at 1x10-3BER.

Optical system performance of 40Gb/s coherent transponders from a carrier's perspective

2009 IEEE LEOS Annual Meeting Conference Proceedings, 2009

We review recent experimental studies using a 46 Gb/s dual-polarization QPSK transceiver with coh... more We review recent experimental studies using a 46 Gb/s dual-polarization QPSK transceiver with coherent detection and real-time digital signal processing, including its tolerance to various impairments. We also discuss its potential advantages from a carrier's perspective.

4000km Transmission of 50GHz spaced, 10x494.85-Gb/s Hybrid 32-64QAM using Cascaded Equalization and Training-Assisted Phase Recovery

Optical Fiber Communication Conference, 2012

ABSTRACT Employing time-domain hybrid QAM, training-assisted phase recovery and cascaded equaliza... more ABSTRACT Employing time-domain hybrid QAM, training-assisted phase recovery and cascaded equalization, we successfully transmitted ten 494.85Gbit/s PDM-32/64QAM DWDM signals at 8.25b/s/Hz net spectral efficiency (SE) over 40x100km, achieving a record terrestrial SE.distance product of 33,000- km.b/s/Hz.

Increasing mean DGD measurement accuracy using second order PMD statistics

2003 Digest of LEOS Summer Topical Meeting (Cat. No.03TH8701), 2003

ABSTRACT We propose an independent measure of the mean DGD using the statistics of the second ord... more ABSTRACT We propose an independent measure of the mean DGD using the statistics of the second order PMD. Numerical analysis and experiment indicate that this measurement technique reduces the measurement uncertainty.

Field measurements of polarization transients on a long-haul terrestrial link

IEEE Photonic Society 24th Annual Meeting, 2011

ABSTRACT We report continuous, multiple-day measurements of polarization transients of a C-band c... more ABSTRACT We report continuous, multiple-day measurements of polarization transients of a C-band channel on an installed 1800-km terrestrial, wavelength-division-multiplexed link. Both elastic and inelastic transients were observed, with speeds up to 90 degrees in 20 microseconds.

Long-distance transmission experiment at 2.5 Gbit/s using an integrated laser/modulator grown by selective-area MOVPE

1200km Transmission of 50GHz spaced, 5×504-Gb/s PDM-32-64 hybrid QAM using electrical and optical spectral shaping

Employing time-domain hybrid QAM and electrical and optical shaping, we successfully transmitted ... more Employing time-domain hybrid QAM and electrical and optical shaping, we successfully transmitted five 504Gbits/s PDM-32/64QAM DWDM signals at 8.4b/s/Hz net spectral efficiency (SE) over a record 12×100km reach (for WDM SE>4b/s/Hz) and one 50GHz-grid ROADM.

PMD of installed fiber - an overview

Polarization mode dispersion (PMD) of installed fiber are studied. Data from a standard high-fibe... more Polarization mode dispersion (PMD) of installed fiber are studied. Data from a standard high-fiber count, buried, ducted cable of recent vintage (c. 1999) NZ-DSF fiber (True Wave Reduced Slope) are presented. This includes long-term measurements from interferometric and wavelength-scanned techniques as well as a new in-situ technique. Some of the challenges for PMD are also discussed.

Cascaded Two-Modulus Algorithm for Blind Polarization De-Multiplexing of 114-Gb/s PDM-8QAM Optical Signals

Optical Fiber Communication Conference and National Fiber Optic Engineers Conference, 2009

ABSTRACT 8-QAM optical signal is generated using a parallel I/Q modulator and a phase modulator w... more ABSTRACT 8-QAM optical signal is generated using a parallel I/Q modulator and a phase modulator with binary drive signals. Blind polarization de-multiplexing of 60 and 114-Gb/s PDM-8QAM is demonstrated using a new cascaded two-modulus algorithm.

Measurements of the polarization dependent loss of multiple WDM channels in an installed, long-haul terrestrial link

IEEE Photonics Society Summer Topicals 2010, 2010

ABSTRACT We report continuous, multiple-day measurements of polarization-dependent loss (PDL) of ... more ABSTRACT We report continuous, multiple-day measurements of polarization-dependent loss (PDL) of several C-band channels on an installed 1800-km terrestrial link. The PDL varies on a time-scale of hours, and the PDL of adjacent channels often track.

A regression approach to infer electricity consumption of legacy telecom equipment

ACM SIGMETRICS Performance Evaluation Review, 2011

Communications technology has great potential for helping other industries reduce their greenhous... more Communications technology has great potential for helping other industries reduce their greenhouse gas emissions. Nevertheless, given the relentless growth of demand for communications services, telecommunications providers will need to transition to more energy-efficient technology in order to limit their own environmental footprint. Here we focus on priority-setting for the transition process. We introduce a method for statistically inferring the electricity consumption of different components of the installed base of telecommunications equipment, while avoiding the high cost of performing direct measurements. Our method relies only on databases of installed equipment in central offices, together with aggregate electricity consumption per office. It takes advantage of inter-office variation in installed equipment to partition per-office electricity consumption by major equipment type. When applied to a collection of 3,918 central offices of a major U.S. telecommunications provider, our approach reveals the (previously unknown) network-wide energy consumption of each major type of equipment. In particular, we find that electricity consumption is dominated by Class-5 telephone switches, which account for 43% of aggregate consumption, and which should therefore be a primary target of central office electricity conservation efforts.

64-Tb/s (640x107-Gb/s) PDM-36QAM Transmission over 320km Using Both Pre- and Post-Transmission Digital Equalization

National Fiber Optic Engineers Conference, 2010

... Note that pre-equalization of deterministic transmitter filtering effects is better than post... more ... Note that pre-equalization of deterministic transmitter filtering effects is better than post-equalization because post-equalization will enhance noise components and thus reduces the signal-to-noise ratio (compare Fig. 1b and 1c). ...

17 Tb/s (161×114 Gb/s) PolMux-RZ-8PSK transmission over 662 km of ultra-low loss fiber using C-band EDFA amplification and digital coherent detection

2008 34th European Conference on Optical Communication, 2008

Employing PolMux-RZ-8PSK modulation and coherent detection, we demonstrate 25 GHz-spaced, 161time... more Employing PolMux-RZ-8PSK modulation and coherent detection, we demonstrate 25 GHz-spaced, 161times114 Gb/s DWDM transmission through eight spans of ultra-low-loss fiber (average span length/loss of 82.75 km/14.6 dB) with a record capacity of 17 Tb/s (spectral efficiency 4.2 b/s/Hz) within the C-band EDFA bandwidth (4.025 THz).

32Tb/s (320x114Gb/s) PDM-RZ-8QAM Transmission over 580km of SMF-28 Ultra-Low-Loss Fiber

Optical Fiber Communication Conference and National Fiber Optic Engineers Conference, 2009

Abstract: Employing PDM-RZ-8QAM modulation, digital coherent detection and EDFA-only amplificatio... more Abstract: Employing PDM-RZ-8QAM modulation, digital coherent detection and EDFA-only amplification, we demonstrate 25 GHz-spaced, 320×114Gb/s DWDM transmission through seven spans of ultra-low-loss fiber (average span length/loss of 82.8 km/14.6 dB) with a record ...

Field PMD measurements through a commercial, Raman-amplified ULH transmission system

2003 Digest of LEOS Summer Topical Meeting (Cat. No.03TH8701), 2003

ABSTRACT Detailed PMD measurements on a field-deployed 986 km commercial system find anomalous PM... more ABSTRACT Detailed PMD measurements on a field-deployed 986 km commercial system find anomalous PMD contributions of approximately 0.6 ps/node beyond that of the transmission fiber. Dramatic changes in the PMD spectrum due to temperature sensitive components were observed.

Design, Fabrication And Performance Of A Very High Side-mode-suppression-ratio Distributed-Bragg-reflector Laser

LEOS '92 Conference Proceedings, 1992

ABSTRACT

Technique for in-situ measurements of polarization mode dispersion

Journal of Lightwave Technology, 2003

ABSTRACT A non-disruptive PMD measurement technique (utilizing the sidebands of working channels)... more ABSTRACT A non-disruptive PMD measurement technique (utilizing the sidebands of working channels) is demonstrated, compared to the Mueller Matrix Method, and applied to a 43Gb/s field-installed system. Correlation between Differential Group Delay and Bit-Error Rate is observed.

Long-term" PMD characterization of installed fibers-how much time is adequate?

ABSTRACT We performed long-term differential group delay (DGD) measurements on multiple installed... more ABSTRACT We performed long-term differential group delay (DGD) measurements on multiple installed fiber spans. Unexpectedly, the statistical distributions of these measurements deviate strongly from existing theory. We offer evidence that analysis of measurement statistics themselves can indicate their validity.

Optics Express, 2015

We report a hybrid integrated external cavity, multi-wavelength laser for high-capacity data tran... more We report a hybrid integrated external cavity, multi-wavelength laser for high-capacity data transmission operating near 1310 nm. This is the first demonstration of a single cavity multi-wavelength laser in silicon to our knowledge. The device consists of a quantum dot reflective semiconductor optical amplifier and a silicon-on-insulator chip with a Sagnac loop mirror and microring wavelength filter. We show four major lasing peaks from a single cavity with less than 3 dB power non-uniformity and demonstrate error-free 4 × 10 Gb/s data transmission.

32Tb/s (320×114Gb/s) PDM-RZ-8QAM transmission over 580km of SMF-28 ultra-low-loss fiber

Employing PDM-RZ-8QAM modulation, digital coherent detection and EDFA-only amplification, we demo... more Employing PDM-RZ-8QAM modulation, digital coherent detection and EDFA-only amplification, we demonstrate 25 GHz-spaced, 320times114Gb/s DWDM transmission through seven spans of ultra-low-loss fiber (average span length/loss of 82.8 km/14.6 dB) with a record capacity of 32Tb/s.

Real-Time Detection of a 40 Gbps Intradyne Channel in the Presence of Multiple Received WDM Channels

Optical Fiber Communication Conference, 2010

ABSTRACT We characterize a single-ended intradyne receiver’s performance when multiple channels a... more ABSTRACT We characterize a single-ended intradyne receiver’s performance when multiple channels are received without optical demultiplexing. A 40Gb/s dual-polarization QPSK channel is recovered from 16 interfering channels with less than 2dB OSNR penalty at 1x10-3BER.

Optical system performance of 40Gb/s coherent transponders from a carrier's perspective

2009 IEEE LEOS Annual Meeting Conference Proceedings, 2009

We review recent experimental studies using a 46 Gb/s dual-polarization QPSK transceiver with coh... more We review recent experimental studies using a 46 Gb/s dual-polarization QPSK transceiver with coherent detection and real-time digital signal processing, including its tolerance to various impairments. We also discuss its potential advantages from a carrier's perspective.

4000km Transmission of 50GHz spaced, 10x494.85-Gb/s Hybrid 32-64QAM using Cascaded Equalization and Training-Assisted Phase Recovery

Optical Fiber Communication Conference, 2012

ABSTRACT Employing time-domain hybrid QAM, training-assisted phase recovery and cascaded equaliza... more ABSTRACT Employing time-domain hybrid QAM, training-assisted phase recovery and cascaded equalization, we successfully transmitted ten 494.85Gbit/s PDM-32/64QAM DWDM signals at 8.25b/s/Hz net spectral efficiency (SE) over 40x100km, achieving a record terrestrial SE.distance product of 33,000- km.b/s/Hz.

Increasing mean DGD measurement accuracy using second order PMD statistics

2003 Digest of LEOS Summer Topical Meeting (Cat. No.03TH8701), 2003

ABSTRACT We propose an independent measure of the mean DGD using the statistics of the second ord... more ABSTRACT We propose an independent measure of the mean DGD using the statistics of the second order PMD. Numerical analysis and experiment indicate that this measurement technique reduces the measurement uncertainty.

Field measurements of polarization transients on a long-haul terrestrial link

IEEE Photonic Society 24th Annual Meeting, 2011

ABSTRACT We report continuous, multiple-day measurements of polarization transients of a C-band c... more ABSTRACT We report continuous, multiple-day measurements of polarization transients of a C-band channel on an installed 1800-km terrestrial, wavelength-division-multiplexed link. Both elastic and inelastic transients were observed, with speeds up to 90 degrees in 20 microseconds.