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16 results on '"Optical Fiber Communication Conference (OFC)"'

2. Fixed-rate-breaking All-optical OFDM system using time-domain hybrid PAM with sparse subcarrier multiplexing and power-loading for optical short-reach transmission

Author

Takahiro Kodama, Gabriella Cincotti, Akihiro Maruta, Naoya Wada, Optical Fiber Communication Conference (OFC) 2020, Kodama, T., Maruta, A., Wada, N., and Cincotti, G.

Subjects
Signal processing, Computer science, Orthogonal frequency-division multiplexing, Subcarrier multiplexing, 02 engineering and technology, 01 natural sciences, Multiplexing, Power (physics), 010309 optics, 020210 optoelectronics & photonics, Transmission (telecommunications), 0103 physical sciences, Limit (music), 0202 electrical engineering, electronic engineering, information engineering, Electronic engineering, Time domain
Abstract

All-optical TDHP-OFDM system with four-sparse-subcarrier-multiplexing and power-loading has been proposed for data-rate-adaptive transmission. 40-Gbit/s, 60-Gbit/s, and 80-Gbit/s can be selected by changing the ratio of PAM2 and PAM4, and all BERs achieve the FEC limit.

Published
2020

3. Enhanced Optical Communications Through Joint Time- Frequency Multiplexing Strategies

Author

Tomotaka Nagashima, Takahiro Kodama, Gabriella Cincotti, Hiroyuki Uenohara, Makoto Hasegawa, Satoshi Shimizu, T. Murakawa, Tsuyoshi Konishi, Akira Himeno, Naoya Wada, Kuninori Hattori, Shinji Mino, Masayuki Okuno, Optical Fiber Communication Conference, Konishi, T., Murakawa, T., Nagashima, T., Shimizu, S., Hasegawa, M., Hattori, K., Okuno, M., Mino, S., Himeno, A., Wada, N., Uenohara, H., Kodama, T., Cincotti, G., and Optical Fiber Communication Conference (OFC), San Diego, California 2019.

Subjects
Computer science, Orthogonal frequency-division multiplexing, Optical communication, 02 engineering and technology, 01 natural sciences, Multiplexing, Time–frequency analysis, 010309 optics, 020210 optoelectronics & photonics, Mode-locking, Transmission (telecommunications), Time-division multiplexing, 0103 physical sciences, Limit (music), 0202 electrical engineering, electronic engineering, information engineering, Electronic engineering, Phase modulation
Abstract

We demonstrate an ultimate flexible approach for simultaneous OFDM and N-OTDM transmission, using intermediate grids between time and frequency axes. We achieve open eye diagrams, and performance below the FEC limit in an 89.2-km field-trial.

Published
2019

4. Mode-multiplexed 16-QAM transmission over 2400-km large-effective-area depressed-cladding 3-mode fiber

Author

David W. Peckham, Nicolas Riesen, John van Weerdenburg, Ton Koonen, Roland Ryf, Haoshuo Chen, Rene-Jean Essiambre, Rodrigo Amezcua-Correa, Nicolas K. Fontaine, Robert Lingle, Juan Carlos Alvarado-Zacarias, Chigo Okonkwo, Alan McCurdy, Simon Gross, Roberto Alvarez-Aguirre, Michael J. Withford, van Weerdenburg, John, Ryf, Roland, Alvarez-Aguirre, Roberto, Fontaine, Nicolas K, Essiambre, René-Jean, Chen, Haoshuo, Alvarado-Zacarias, Juan Carlos, Amezcua-Correa, Rodrigo, Gross, Simon, Riesen, Nicolas, Withford, Michael, Peckham, David W, McCurdy, Alan, Lingle, Robert, Koonen, Ton, Okonkwo, Chigo, Optical Fiber Communication Conference, OFC 2018 San Diego, United States 11-15 March 2017, Eindhoven Hendrik Casimir institute, Electro-Optical Communication, High Capacity Optical Transmission, and Optical Access and Indoor Networks

Subjects
Space division multiplexing, Materials science, business.industry, Optical communications, Antenna aperture, Optical communication, transmission, 02 engineering and technology, Coherent communications, Cladding (fiber optics), Multiplexing, 020210 optoelectronics & photonics, Optics, 0202 electrical engineering, electronic engineering, information engineering, Modes, mode fiber, business, Quadrature amplitude modulation
Abstract

We demonstrate 2400 km mode-multiplexed 16-QAM transmission over a low DMGD (27.1 ps/km) and low MDL (1.75 dB) 3-mode fiber link. The large effective-area 3-mode fiber is shown to outperform a standard single-mode fiber for distances up to 4500km. Refereed/Peer-reviewed

Published
2018

5. All-Optical Nyquist-OTDM to Nyquist-WDM conversion for Highly Flexible Optical Networks

Author

Gabriella Cincotti, Naoya Wada, Satoshi Shimizu, Optical Fiber Communication Conference (OFC), Anaheim, California 2016, Shimizu, Satoshi, Cincotti, Gabriella, and Wada, Naoya

Subjects
Materials science, Optical cross-connect, 020206 networking & telecommunications, 02 engineering and technology, Optical modulation amplitude, Optical performance monitoring, 01 natural sciences, 010309 optics, Nyquist filter, 0103 physical sciences, 0202 electrical engineering, electronic engineering, information engineering, Electronic engineering, Nyquist–Shannon sampling theorem, Optical filter, Optical add-drop multiplexer, Optical communications repeater
Abstract

50 and 25 Gbaud Nyquist QPSK signals are converted to Nyquist-WDM signals with half baud-rate, by using a phase modulator and an optical Nyquist filter. The EVM were 9% after the conversion employing duo-binary filter.

Published
2016

6. Demonstration of Multi-hop Optical Add-Drop Network with High Frequency Granular Optical Channel Defragmentation Nodes

Author

Naoya Wada, Satoshi Shimizu, Gabriella Cincotti, Optical Fiber Communication Conference (OFC), Los Angeles, California 2015, Shimizu, Satoshi, Cincotti, Gabriella, and Wada, Naoya

Subjects
Optical amplifier, Multiwavelength optical networking, Optical fiber, Computer science, Optical cross-connect, Data_CODINGANDINFORMATIONTHEORY, Optical performance monitoring, Optical burst switching, Passive optical network, Optical switch, law.invention, Optical Transport Network, law, Wavelength-division multiplexing, Fiber optic splitter, Electronic engineering, Defragmentation, Optical filter, Adaptive optics, Optical add-drop multiplexer, Optical attenuator, Optical communications repeater
Abstract

Four nodes optical add-drop network with high frequency granular optical channel defragmentation has been demonstrated. All channels presents error-free operation and power penalties are less than 4 dB even after multi-hop transmission.

Published
2015

7. Experimental characterization of a graded-index ring-core fiber supporting 7 LP mode groups

Author

Feng, Feng, Gordon, George SD, Jin, XQ, O'Brien, DC, Payne, FP, Jung, Y, Kang, Q, Sahu, JK, Alam, SU, Richardson, DJ, Wilkinson, Timothy D, and Optical Fiber Communication Conference, OFC 2015 Los Angeles, US 22-26 March 2015

Subjects
Physics::Optics, Computer Science::Information Theory
Abstract

We design and characterize a graded-index-ring-core fiber supporting 7 LP modegroups (13 spatial modes) for mode multiplexed transmission with low MIMO processing complexity. Spatial and temporal modal properties are analyzed using an SLM-based mode multiplexer/demultiplexer. Refereed/Peer-reviewed

Published
2015

8. Flexible Power-efficient Nyquist-OTDM transmitter, using a WSS and time-lens effect

Author

Hiroyuki Uenohara, Satoshi Shimizu, Akira Himeno, Shinji Mino, Tsuyoshi Konishi, T. Murakawa, Takahiro Kodama, Kunihiro Hattori, Naoya Wada, Masayuki Okuno, Tomotaka Nagashima, Makoto Hasegawa, Gabriella Cincotti, Optical Fiber Communication Conference (OFC), Los Angeles, California 2015, Cincotti, Gabriella, Shimizu, Satoshi, Murakawa, Takuya, Kodama, Takahiro, Hattori, Kuninori, Okuno, Masayuki, Mino, Shinji, Himeno, Akira, Nagashima, Tomotaka, Hasegawa, Makoto, Wada, Naoya, Uenohara, Hiroyuki, and Konishi, Tsuyoshi

Subjects
Four-wave mixing, Engineering, Time-division multiplexing, business.industry, Transmitter, Electronic engineering, Nyquist–Shannon sampling theorem, Optical performance monitoring, business, Phase modulation, Multiplexing, Fractional Fourier transform
Abstract

Power-efficient, flexible, Nyquist 4.88-ps sinc-pulses generation and OTDM multiplexing is demonstrated, using fractional Fourier transform subcarriers and time-lens effect. OTDM users are generated and multiplexed by a WSS, without rectangular spectral shaping.

Published
2015

9. Secure 2.5Gbit/s, 16-ary OCDM block-ciphering with XOR using a single multi-port en/decoder and its transmission experiment with true clock recovery

Author

Gabriella Cincotti, Takahiro Kodama, Ken-ichi Kitayama, Tetsuya Miyazaki, Xu Wang, Nobuyuki Kataoka, Naoki Nakagawa, Naoya Wada, Optical Fiber Communication Conference (OFC), C. T., Kodama, N., Nakagawa, N., Kataoka, N., Wada, Cincotti, Gabriella, X., Wang, T., Miyazaki, and K. I., Kitayama

Subjects
Block code, Optical fiber, Computer science, Code division multiple access, Optical communication, Data_CODINGANDINFORMATIONTHEORY, Multiplexing, law.invention, Transmission (telecommunications), law, Electronic engineering, Codec, Hardware_ARITHMETICANDLOGICSTRUCTURES, Clock recovery, Block (data storage)
Abstract

Secure 2.5Gbit/s, 16-ary optical code division multiplexing (OCDM)-based block-ciphering with on-line XOR using a single multi-port optical en/decoder and its 50km-long fiber transmission with true clock recovery is experimentally demonstrated for the first time.

Published
2009
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14. All-optical multiple-label-processing based optical packet switch prototype and novel 10Gb ethernet 80 Gbps-wide colored optical packet converter with 8-channel array burst-mode packet transceiver

Author

H. FURUKAWA, N. WADA, H. HARAI, M. NARUSE, H. OTSUKI, M. KATSUMOTO, T. MIYAZAKI, K. IKEZAWA, A. TOYOMA, N. ITOU, H. SHIMIZU, H. FUJINUMA, H. IIDUKA, K. I. KITAYAMA, CINCOTTI, GABRIELLA, Optical Fiber Communication Conference (OFC), H., Furukawa, N., Wada, H., Harai, M., Naruse, H., Otsuki, M., Katsumoto, T., Miyazaki, K., Ikezawa, A., Toyoma, N., Itou, H., Shimizu, H., Fujinuma, H., Iiduka, Cincotti, Gabriella, and K. I., Kitayama

Published
2007

15. Field trail of 3-WDM X 10-OCDMA X 10.71 Gbps, truly asynchronous, WDM/DPSK-OCDMA using hybrid E/D without FEC and optical threshold

Author

WANG X., WADA N., MIYAZAKI T., KITAYAMA K. I., CINCOTTI, GABRIELLA, Optical Fiber Communication Conference OFC, Anaheim, California 2006, Wang, X., Wada, N., Miyazaki, T., Cincotti, Gabriella, and Kitayama, K. I.

Abstract

A cost-effective WDM/DPSK-OCDMA sharing a single multi-port encoder in central office, tunable decoders in ONU was demonstrated in field trial. 111 km error-free transmission of truly-asynchronous, 3-WDM×10-OCDMA×10.71 Gbps/user has been achieved without FEC, optical thresholding

Published
2006

16. Design of waveguide grating routers for simultaneous multiple optical code generation in photonic MPLS networks

Author

Gabriella Cincotti, Naoya Wada, Ken-ichi Kitayama, Optical Fiber Communication Conference (OFC), Cincotti, Gabriella, N., Wada, and K. I., Kitayama

Subjects
Computer science, business.industry, computer.internet_protocol, Photonic integrated circuit, Multiprotocol Label Switching, Optical performance monitoring, Optical burst switching, Waveguide (optics), Optical Transport Network, Electronic engineering, Photonics, business, Optical add-drop multiplexer, Microphotonics, computer, Waveguide grating
Abstract

We review novel methods to generate optical codes for use in MPLS or CDM transmission. A standard WGR can be designed to generate simultaneously a large number of highly orthogonal codes as a result of a single input pulse.

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