Pub Date : 2014-12-22DOI: 10.1109/MWP.2014.6994533
Fangzheng Zhang, Tingting Zhang, S. Pan
A full-duplex radio-over-fiber (ROF) system with centralized light source and bidirectional fiber transmission is proposed and experimentally demonstrated based on optical sideband reuse in the base station (BS). The proposed ROF system has a simple structure in the central office (CO) using only one dual-parallel Mach-Zehnder modulator (DPMZM) to simultaneously generate two first order sidebands and modulate the optical carrier with the downstream base band signal. In the BS, the downstream RF signal is generated by beating the optical carrier with one of the sidebands at a photo-detector, and the other optical sideband is reused as a light source and modulated by the upstream RF signal. No frequency up/down-conversion is needed in the BS, which also leads to a simplified system configuration. A proof-of-concept experiment is carried out. Performance of the established 18 GHz full-duplex ROF system with bidirectional transmission through 20 km single mode fiber (SMF) is investigated. The results verify that the proposed architecture is a good candidate for future high-speed and low-cost ROF networks.
{"title":"A full-duplex radio-over-fiber system with centralized light source and bidirectional fiber transmission based on optical sideband reuse","authors":"Fangzheng Zhang, Tingting Zhang, S. Pan","doi":"10.1109/MWP.2014.6994533","DOIUrl":"https://doi.org/10.1109/MWP.2014.6994533","url":null,"abstract":"A full-duplex radio-over-fiber (ROF) system with centralized light source and bidirectional fiber transmission is proposed and experimentally demonstrated based on optical sideband reuse in the base station (BS). The proposed ROF system has a simple structure in the central office (CO) using only one dual-parallel Mach-Zehnder modulator (DPMZM) to simultaneously generate two first order sidebands and modulate the optical carrier with the downstream base band signal. In the BS, the downstream RF signal is generated by beating the optical carrier with one of the sidebands at a photo-detector, and the other optical sideband is reused as a light source and modulated by the upstream RF signal. No frequency up/down-conversion is needed in the BS, which also leads to a simplified system configuration. A proof-of-concept experiment is carried out. Performance of the established 18 GHz full-duplex ROF system with bidirectional transmission through 20 km single mode fiber (SMF) is investigated. The results verify that the proposed architecture is a good candidate for future high-speed and low-cost ROF networks.","PeriodicalId":220534,"journal":{"name":"Microwave Photonics (MWP) and the 2014 9th Asia-Pacific Microwave Photonics Conference (APMP) 2014 International Topical Meeting on","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123488858","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-12-22DOI: 10.1109/MWP.2014.6994474
D. Novak, R. Waterhouse
Wireless communication networks that support emerging broadband services and applications provide new opportunities for integrated optical wireless networks. We describe some advanced radio over fiber technologies that are currently being investigated for next generation converged optical wireless networks.
{"title":"Advanced radio over fiber system technologies","authors":"D. Novak, R. Waterhouse","doi":"10.1109/MWP.2014.6994474","DOIUrl":"https://doi.org/10.1109/MWP.2014.6994474","url":null,"abstract":"Wireless communication networks that support emerging broadband services and applications provide new opportunities for integrated optical wireless networks. We describe some advanced radio over fiber technologies that are currently being investigated for next generation converged optical wireless networks.","PeriodicalId":220534,"journal":{"name":"Microwave Photonics (MWP) and the 2014 9th Asia-Pacific Microwave Photonics Conference (APMP) 2014 International Topical Meeting on","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122285977","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-12-22DOI: 10.1109/MWP.2014.6994487
Weifeng Zhang, Jiejun Zhang, J. Yao
We design and fabricate a novel silicon-based optical spectral shaper for the generation of a largely chirped microwave waveform. The optical spectral shaper has a Mach-Zehnder interferometer structure in which multiple micro-ring resonators are cascaded. By controlling the radii of the rings, the spectral response of the spectral shaper can be controlled to have a largely increasing or decreasing free spectral range, which is needed for the generation of a largely chirped microwave waveform based on spectral shaping and wavelength-to time (SS-WTT) mapping. The proposed optical spectral shaper is fabricated using a CMOS compatible process with 193-nm deep ultraviolet lithography. By using such an optical spectral shaper in an SS-WTT mapping system, a largely chirped microwave waveform with a bandwidth of 15.55 GHz and a chirp rate of 17.2 GHz/ns is demonstrated.
{"title":"Largely chirped microwave waveform generation using a silicon-based on-chip optical spectral shaper","authors":"Weifeng Zhang, Jiejun Zhang, J. Yao","doi":"10.1109/MWP.2014.6994487","DOIUrl":"https://doi.org/10.1109/MWP.2014.6994487","url":null,"abstract":"We design and fabricate a novel silicon-based optical spectral shaper for the generation of a largely chirped microwave waveform. The optical spectral shaper has a Mach-Zehnder interferometer structure in which multiple micro-ring resonators are cascaded. By controlling the radii of the rings, the spectral response of the spectral shaper can be controlled to have a largely increasing or decreasing free spectral range, which is needed for the generation of a largely chirped microwave waveform based on spectral shaping and wavelength-to time (SS-WTT) mapping. The proposed optical spectral shaper is fabricated using a CMOS compatible process with 193-nm deep ultraviolet lithography. By using such an optical spectral shaper in an SS-WTT mapping system, a largely chirped microwave waveform with a bandwidth of 15.55 GHz and a chirp rate of 17.2 GHz/ns is demonstrated.","PeriodicalId":220534,"journal":{"name":"Microwave Photonics (MWP) and the 2014 9th Asia-Pacific Microwave Photonics Conference (APMP) 2014 International Topical Meeting on","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132444993","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-12-22DOI: 10.1109/MWP.2014.6994564
C. Lim, Yizhuo Yang, T. Nirmalathas
This paper reviews some of the research work we have carried out in the transport of broadband OFDM signals using digitized wireless signal transport in a fiber-wireless environment. We compare the performance against analog transport strategy.
{"title":"OFDM with digitized transport for high capacity fiber-wireless links","authors":"C. Lim, Yizhuo Yang, T. Nirmalathas","doi":"10.1109/MWP.2014.6994564","DOIUrl":"https://doi.org/10.1109/MWP.2014.6994564","url":null,"abstract":"This paper reviews some of the research work we have carried out in the transport of broadband OFDM signals using digitized wireless signal transport in a fiber-wireless environment. We compare the performance against analog transport strategy.","PeriodicalId":220534,"journal":{"name":"Microwave Photonics (MWP) and the 2014 9th Asia-Pacific Microwave Photonics Conference (APMP) 2014 International Topical Meeting on","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129156887","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-12-22DOI: 10.1109/MWP.2014.6994549
E. Martin, P. Anandarajah, L. Barry
A single sideband (SSB) sub carrier multiplexed (SCM) quadrature phase shift keyed (QPSK) 60 GHz radio over fibre transmission system employing a gain switched DFB laser for millimetre wave generation is demonstrated. Error free transmission of a 1.25 Gbaud/s QPSK signal over 25 km of standard single mode fibre (SSMF) is achieved with a low cost laser and low cost electronics. Our research demonstrates a cost effective mm-wave generation and transmission system which is baud rate/modulation format scalable.
{"title":"60 GHz SSB SCM QPSK radio over fibre system based on a gain switched distributed feedback laser","authors":"E. Martin, P. Anandarajah, L. Barry","doi":"10.1109/MWP.2014.6994549","DOIUrl":"https://doi.org/10.1109/MWP.2014.6994549","url":null,"abstract":"A single sideband (SSB) sub carrier multiplexed (SCM) quadrature phase shift keyed (QPSK) 60 GHz radio over fibre transmission system employing a gain switched DFB laser for millimetre wave generation is demonstrated. Error free transmission of a 1.25 Gbaud/s QPSK signal over 25 km of standard single mode fibre (SSMF) is achieved with a low cost laser and low cost electronics. Our research demonstrates a cost effective mm-wave generation and transmission system which is baud rate/modulation format scalable.","PeriodicalId":220534,"journal":{"name":"Microwave Photonics (MWP) and the 2014 9th Asia-Pacific Microwave Photonics Conference (APMP) 2014 International Topical Meeting on","volume":"131 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116210413","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-12-22DOI: 10.1109/MWP.2014.6994479
M. Shiraiwa, A. Kanno, T. Kuri, P. Dat, Y. Awaji, N. Wada, T. Kawanishi
We investigated the performance of the latest burst-mode erbium-doped fiber amplifier (BM-EDFA) for uplink transmission of radio-over-fiber signals by using the long-term evolution advanced format. The new BM-EDFA was designed to have high linearity in the high output power range. Compared with conventional EDFAs, we observed lower error vector magnitudes over a wide range of optical input power.
{"title":"Performance of a new burst-mode erbium-doped fiber amplifier for uplink radio-over-fiber signal transmission","authors":"M. Shiraiwa, A. Kanno, T. Kuri, P. Dat, Y. Awaji, N. Wada, T. Kawanishi","doi":"10.1109/MWP.2014.6994479","DOIUrl":"https://doi.org/10.1109/MWP.2014.6994479","url":null,"abstract":"We investigated the performance of the latest burst-mode erbium-doped fiber amplifier (BM-EDFA) for uplink transmission of radio-over-fiber signals by using the long-term evolution advanced format. The new BM-EDFA was designed to have high linearity in the high output power range. Compared with conventional EDFAs, we observed lower error vector magnitudes over a wide range of optical input power.","PeriodicalId":220534,"journal":{"name":"Microwave Photonics (MWP) and the 2014 9th Asia-Pacific Microwave Photonics Conference (APMP) 2014 International Topical Meeting on","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121645533","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-12-22DOI: 10.1109/MWP.2014.6994496
Daniel Pérez, I. Gasulla, J. Capmany
We present an end-to-end model of a microwave photonics transistor (MWPT). The device is divided into two stages: The microwave photonic (MWP) and the pure radiofrequency (RF) parts. Expressions are derived for the linear and nonlinear current terms in the transition point between them and at the system output to obtain the final expressions for the overall figures of merit (FOMs) as a function of those of the MWP and RF parts. We develop several application examples for specific MWP system configurations previously reported in the literature with a view of comparing the impact that both the MWP and the RF parts have on the overall performance metrics of the MWPT.
{"title":"Microwave photonics transistor design equations","authors":"Daniel Pérez, I. Gasulla, J. Capmany","doi":"10.1109/MWP.2014.6994496","DOIUrl":"https://doi.org/10.1109/MWP.2014.6994496","url":null,"abstract":"We present an end-to-end model of a microwave photonics transistor (MWPT). The device is divided into two stages: The microwave photonic (MWP) and the pure radiofrequency (RF) parts. Expressions are derived for the linear and nonlinear current terms in the transition point between them and at the system output to obtain the final expressions for the overall figures of merit (FOMs) as a function of those of the MWP and RF parts. We develop several application examples for specific MWP system configurations previously reported in the literature with a view of comparing the impact that both the MWP and the RF parts have on the overall performance metrics of the MWPT.","PeriodicalId":220534,"journal":{"name":"Microwave Photonics (MWP) and the 2014 9th Asia-Pacific Microwave Photonics Conference (APMP) 2014 International Topical Meeting on","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133961216","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-12-22DOI: 10.1109/MWP.2014.6994580
T. Koonen, Z. Cao
Two-dimensional squint-free radio beam steering by means of single-parameter tuning is proposed, based on a novel optical integrated circuit concept featuring step-wise wavelength-tunable interleaved true-time-delay stages. The tuning functionality of an elementary TTD stage is demonstrated.
{"title":"Optically controlled 2D radio beam steering system","authors":"T. Koonen, Z. Cao","doi":"10.1109/MWP.2014.6994580","DOIUrl":"https://doi.org/10.1109/MWP.2014.6994580","url":null,"abstract":"Two-dimensional squint-free radio beam steering by means of single-parameter tuning is proposed, based on a novel optical integrated circuit concept featuring step-wise wavelength-tunable interleaved true-time-delay stages. The tuning functionality of an elementary TTD stage is demonstrated.","PeriodicalId":220534,"journal":{"name":"Microwave Photonics (MWP) and the 2014 9th Asia-Pacific Microwave Photonics Conference (APMP) 2014 International Topical Meeting on","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134060688","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-12-22DOI: 10.1109/MWP.2014.6994492
M. Hasegawa, M. Mendez, T. Nagashima, T. Murakawa, T. Konishi
We experimentally demonstrate the interconnect test of optical sampling and quantization for optical analog-to-digital conversion. We generate 10-GSamples/s optical sampled signals using four-wave mixing (FWM) and connect these signals to an optical quantization system based on soliton self-frequency shift (SSFS) in experiment. The potential of this system is estimated to 5.08-bit resolution capability in simulation.
{"title":"Interconnect test between optical sampling and quantization for optical analog-to-digital conversion","authors":"M. Hasegawa, M. Mendez, T. Nagashima, T. Murakawa, T. Konishi","doi":"10.1109/MWP.2014.6994492","DOIUrl":"https://doi.org/10.1109/MWP.2014.6994492","url":null,"abstract":"We experimentally demonstrate the interconnect test of optical sampling and quantization for optical analog-to-digital conversion. We generate 10-GSamples/s optical sampled signals using four-wave mixing (FWM) and connect these signals to an optical quantization system based on soliton self-frequency shift (SSFS) in experiment. The potential of this system is estimated to 5.08-bit resolution capability in simulation.","PeriodicalId":220534,"journal":{"name":"Microwave Photonics (MWP) and the 2014 9th Asia-Pacific Microwave Photonics Conference (APMP) 2014 International Topical Meeting on","volume":"409 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132313527","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-12-22DOI: 10.1109/MWP.2014.6994503
Takayuki Mitsubo, H. Murata, Y. Okamura
We have proposed a pre-equalizing electro-optic (EO) modulator for high-speed optical fiber communication systems. The proposed EO modulator can compensate for the signal distortion caused by fiber dispersion utilizing signal convolution characteristics in polarization-reversed EO modulators. The polarization reversal patterns can be designed using the delta-sigma transformation technique. The analyses demonstrate compensation for fiber dispersion of a 10 km standard single mode fiber when using RZ 40 Gb/s signal.
{"title":"Design of pre-equalizing high-speed EO modulator with polarization-reversed structure using delta-sigma transformation","authors":"Takayuki Mitsubo, H. Murata, Y. Okamura","doi":"10.1109/MWP.2014.6994503","DOIUrl":"https://doi.org/10.1109/MWP.2014.6994503","url":null,"abstract":"We have proposed a pre-equalizing electro-optic (EO) modulator for high-speed optical fiber communication systems. The proposed EO modulator can compensate for the signal distortion caused by fiber dispersion utilizing signal convolution characteristics in polarization-reversed EO modulators. The polarization reversal patterns can be designed using the delta-sigma transformation technique. The analyses demonstrate compensation for fiber dispersion of a 10 km standard single mode fiber when using RZ 40 Gb/s signal.","PeriodicalId":220534,"journal":{"name":"Microwave Photonics (MWP) and the 2014 9th Asia-Pacific Microwave Photonics Conference (APMP) 2014 International Topical Meeting on","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133766315","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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