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Papers by S. Cabot

Research paper thumbnail of All-optical XOR and XNOR operations at
864 Gb/s using a pair of semiconductor optical amplifier Mach-Zehnder interferometers

Optics Express, 2009

We propose a method for increased-speed all-optical XOR operation using semiconductor optical amp... more We propose a method for increased-speed all-optical XOR operation using semiconductor optical amplifiers. We demonstrate XOR and XNOR operations at 86.4 Gb/s using a pair of photonic-integrated semiconductor optical amplifier Mach-Zehnder interferometers.

Research paper thumbnail of Demonstration of a Reconfigurable 8-Bit Optical Correlator Filter Using High-Index-Contrast Silica Waveguides

Integrated Photonics and Nanophotonics Research and Applications, 2008

1 Alcatel-Lucent, Bell Labs, Murray Hill, NJ 07974 USA. (phone: 908-582-1362; fax: 908-582-4868; ... more 1 Alcatel-Lucent, Bell Labs, Murray Hill, NJ 07974 USA. (phone: 908-582-1362; fax: 908-582-4868; e-mail: rasras@alcatel-lucent.com). 2 Alcatel-Lucent, Bell Labs, Holmdel, NJ 07733 USA. 3 LGS Innovations, LLC, Murray Hill, NJ 07974 USA.

Research paper thumbnail of All-Optical Byte Recognition for 40-Gb/s Phase-Shift-Keyed Transmission Using a Planar-Lightwave-Circuit Passive Correlator

IEEE Photonics Technology Letters, 2000

We demonstrate all-optical recognition of a byte pattern embedded in phase-shift-keyed data strea... more We demonstrate all-optical recognition of a byte pattern embedded in phase-shift-keyed data streaming at 40 Gb/s. We use matched filtering to generate an autocorrelation pulse indicating the pattern matching. Matched filtering is implemented using a reconfigurable silica planar-lightwave-circuit optical delayline filter. We show excellent discrimination against spurious patterns consistent with the theoretical predictions.

Research paper thumbnail of 160 Gb/s SOA all-optical wavelength converter andassessment of its regenerative properties

Optical Amplifiers and Their Applications/Integrated Photonics Research, 2004

Research paper thumbnail of Reconfigurable all-optical byte recognition for 40-Gb/s phase-shift-keyed transmission using a planar-lightwave-circuit passive correlator

OFC/NFOEC 2008 - 2008 Conference on Optical Fiber Communication/National Fiber Optic Engineers Conference, 2008

We demonstrate all-optical recognition of byte patterns embedded in phase-shift-keyed data stream... more We demonstrate all-optical recognition of byte patterns embedded in phase-shift-keyed data streaming at 40 Gb/s. We use matched filtering to generate an autocorrelation pulse indicating the pattern matching. Matched filtering is implemented using a reconfigurable silica planar-lightwave-circuit optical delay-line filter. We show excellent discrimination against spurious patterns consistent with the theoretical predictions.

Research paper thumbnail of Nonblocking all-optical cross connect based on regenerative all-optical wavelength converter in a transparent demonstration over 42 nodes and 16800 km

Journal of Lightwave Technology, 2003

MMM 2003 VOLUME 21 NUMBER 11 JLTEDG (ISSN 0733-8724) PAPER This material is posted here with perm... more MMM 2003 VOLUME 21 NUMBER 11 JLTEDG (ISSN 0733-8724) PAPER This material is posted here with permission of the IEEE. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by sending a blank email message to pubs-permissions@ieee.org.

Research paper thumbnail of Ultra high-speed data signals with alternating and pairwise alternating optical phases

Journal of Lightwave Technology, 2000

We demonstrate two 160-Gb/s modulation formats that posses the same intensity pulse profile but d... more We demonstrate two 160-Gb/s modulation formats that posses the same intensity pulse profile but differ regarding their phase coding. We analyze the nonlinear transmission properties of both coherent modulation formats by experimental and analytical investigations. The results show that the pairwise alternating phase coded carrier suppressed return-to-zero (PAP-CSRZ) signal outperforms the conventional CSRZ format. Our modulation technique is even applicable at higher speed as demonstrated with the generation of the first CSRZ signal at a record rate of 320 Gb/s.

Research paper thumbnail of A Programmable 8-bit Optical Correlator Filter for Optical Bit Pattern Recognition

IEEE Photonics Technology Letters, 2000

We demonstrate a compact reconfigurable 8-bit optical matching filter fabricated using 4% delta h... more We demonstrate a compact reconfigurable 8-bit optical matching filter fabricated using 4% delta high-index-contrast silica-on-silicon waveguides. This planar lightwave circuit is based on an eighth-order tap-and-delay finite impulse response architecture. Multimode interference-based splitters/combiners along with variable optical attenuators and phase shifters allow us to tune and dynamically reconfigure all the taps and delays (filter coefficients) in the filter using a simple automated algorithm. The filter is designed to recognize 8-bit patterns in 40-Gb/s data streams and we demonstrate its working principle by successfully correlating 8-bit binary phase-shift-keyed patterns.

Research paper thumbnail of Th4. 3.3 Regenerative All Optical Wavelength Conversion of 40-Gb/s DPSK Signals using a Semiconductor Optical Amplifier Mach-Zehnder Interferometer

Research paper thumbnail of Transmission of 35-Gb/s all-optical OFDM signal over an all-EDFA 1980-km recirculating loop consisting of SSMF and DCF without using tunable dispersion compensation

ABSTRACT We demonstrate long-haul transmission of 35-Gb/s (7 x 5 Gb/s NRZ-OOK) all-optical OFDM s... more ABSTRACT We demonstrate long-haul transmission of 35-Gb/s (7 x 5 Gb/s NRZ-OOK) all-optical OFDM signal. We achieve bit error ratio of 3.3x10-3 for transmission over 1980-km span consisting of SSMF and DCF without using tunable dispersion compensation.

Research paper thumbnail of Dynamics of Linewidth-Enhancement Factor in Semiconductor Optical Amplifiers

Research paper thumbnail of SPECIAL ISSUE PAPERS (All Special Issue Papers Are Invited Papers)-Planar Lightwave Circuit Eight-Channel CWDM Multiplexer With

Research paper thumbnail of All-optical XOR and XNOR operations at 864 Gb/s using a pair of semiconductor optical amplifier Mach-Zehnder interferometers

Optics Express, 2009

We propose a method for increased-speed all-optical XOR operation using semiconductor optical amp... more We propose a method for increased-speed all-optical XOR operation using semiconductor optical amplifiers. We demonstrate XOR and XNOR operations at 86.4 Gb/s using a pair of photonic-integrated semiconductor optical amplifier Mach-Zehnder interferometers.

Research paper thumbnail of All-optical XOR and XNOR operations at
864 Gb/s using a pair of semiconductor optical amplifier Mach-Zehnder interferometers

Optics Express, 2009

We propose a method for increased-speed all-optical XOR operation using semiconductor optical amp... more We propose a method for increased-speed all-optical XOR operation using semiconductor optical amplifiers. We demonstrate XOR and XNOR operations at 86.4 Gb/s using a pair of photonic-integrated semiconductor optical amplifier Mach-Zehnder interferometers.

Research paper thumbnail of Demonstration of a Reconfigurable 8-Bit Optical Correlator Filter Using High-Index-Contrast Silica Waveguides

Integrated Photonics and Nanophotonics Research and Applications, 2008

1 Alcatel-Lucent, Bell Labs, Murray Hill, NJ 07974 USA. (phone: 908-582-1362; fax: 908-582-4868; ... more 1 Alcatel-Lucent, Bell Labs, Murray Hill, NJ 07974 USA. (phone: 908-582-1362; fax: 908-582-4868; e-mail: rasras@alcatel-lucent.com). 2 Alcatel-Lucent, Bell Labs, Holmdel, NJ 07733 USA. 3 LGS Innovations, LLC, Murray Hill, NJ 07974 USA.

Research paper thumbnail of All-Optical Byte Recognition for 40-Gb/s Phase-Shift-Keyed Transmission Using a Planar-Lightwave-Circuit Passive Correlator

IEEE Photonics Technology Letters, 2000

We demonstrate all-optical recognition of a byte pattern embedded in phase-shift-keyed data strea... more We demonstrate all-optical recognition of a byte pattern embedded in phase-shift-keyed data streaming at 40 Gb/s. We use matched filtering to generate an autocorrelation pulse indicating the pattern matching. Matched filtering is implemented using a reconfigurable silica planar-lightwave-circuit optical delayline filter. We show excellent discrimination against spurious patterns consistent with the theoretical predictions.

Research paper thumbnail of 160 Gb/s SOA all-optical wavelength converter andassessment of its regenerative properties

Optical Amplifiers and Their Applications/Integrated Photonics Research, 2004

Research paper thumbnail of Reconfigurable all-optical byte recognition for 40-Gb/s phase-shift-keyed transmission using a planar-lightwave-circuit passive correlator

OFC/NFOEC 2008 - 2008 Conference on Optical Fiber Communication/National Fiber Optic Engineers Conference, 2008

We demonstrate all-optical recognition of byte patterns embedded in phase-shift-keyed data stream... more We demonstrate all-optical recognition of byte patterns embedded in phase-shift-keyed data streaming at 40 Gb/s. We use matched filtering to generate an autocorrelation pulse indicating the pattern matching. Matched filtering is implemented using a reconfigurable silica planar-lightwave-circuit optical delay-line filter. We show excellent discrimination against spurious patterns consistent with the theoretical predictions.

Research paper thumbnail of Nonblocking all-optical cross connect based on regenerative all-optical wavelength converter in a transparent demonstration over 42 nodes and 16800 km

Journal of Lightwave Technology, 2003

MMM 2003 VOLUME 21 NUMBER 11 JLTEDG (ISSN 0733-8724) PAPER This material is posted here with perm... more MMM 2003 VOLUME 21 NUMBER 11 JLTEDG (ISSN 0733-8724) PAPER This material is posted here with permission of the IEEE. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by sending a blank email message to pubs-permissions@ieee.org.

Research paper thumbnail of Ultra high-speed data signals with alternating and pairwise alternating optical phases

Journal of Lightwave Technology, 2000

We demonstrate two 160-Gb/s modulation formats that posses the same intensity pulse profile but d... more We demonstrate two 160-Gb/s modulation formats that posses the same intensity pulse profile but differ regarding their phase coding. We analyze the nonlinear transmission properties of both coherent modulation formats by experimental and analytical investigations. The results show that the pairwise alternating phase coded carrier suppressed return-to-zero (PAP-CSRZ) signal outperforms the conventional CSRZ format. Our modulation technique is even applicable at higher speed as demonstrated with the generation of the first CSRZ signal at a record rate of 320 Gb/s.

Research paper thumbnail of A Programmable 8-bit Optical Correlator Filter for Optical Bit Pattern Recognition

IEEE Photonics Technology Letters, 2000

We demonstrate a compact reconfigurable 8-bit optical matching filter fabricated using 4% delta h... more We demonstrate a compact reconfigurable 8-bit optical matching filter fabricated using 4% delta high-index-contrast silica-on-silicon waveguides. This planar lightwave circuit is based on an eighth-order tap-and-delay finite impulse response architecture. Multimode interference-based splitters/combiners along with variable optical attenuators and phase shifters allow us to tune and dynamically reconfigure all the taps and delays (filter coefficients) in the filter using a simple automated algorithm. The filter is designed to recognize 8-bit patterns in 40-Gb/s data streams and we demonstrate its working principle by successfully correlating 8-bit binary phase-shift-keyed patterns.

Research paper thumbnail of Th4. 3.3 Regenerative All Optical Wavelength Conversion of 40-Gb/s DPSK Signals using a Semiconductor Optical Amplifier Mach-Zehnder Interferometer

Research paper thumbnail of Transmission of 35-Gb/s all-optical OFDM signal over an all-EDFA 1980-km recirculating loop consisting of SSMF and DCF without using tunable dispersion compensation

ABSTRACT We demonstrate long-haul transmission of 35-Gb/s (7 x 5 Gb/s NRZ-OOK) all-optical OFDM s... more ABSTRACT We demonstrate long-haul transmission of 35-Gb/s (7 x 5 Gb/s NRZ-OOK) all-optical OFDM signal. We achieve bit error ratio of 3.3x10-3 for transmission over 1980-km span consisting of SSMF and DCF without using tunable dispersion compensation.

Research paper thumbnail of Dynamics of Linewidth-Enhancement Factor in Semiconductor Optical Amplifiers

Research paper thumbnail of SPECIAL ISSUE PAPERS (All Special Issue Papers Are Invited Papers)-Planar Lightwave Circuit Eight-Channel CWDM Multiplexer With

Research paper thumbnail of All-optical XOR and XNOR operations at 864 Gb/s using a pair of semiconductor optical amplifier Mach-Zehnder interferometers

Optics Express, 2009

We propose a method for increased-speed all-optical XOR operation using semiconductor optical amp... more We propose a method for increased-speed all-optical XOR operation using semiconductor optical amplifiers. We demonstrate XOR and XNOR operations at 86.4 Gb/s using a pair of photonic-integrated semiconductor optical amplifier Mach-Zehnder interferometers.

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