Pub Date : 2018-10-01DOI: 10.1109/MWP.2018.8552892
G. Hasanuzzaman, H. Shams, C. Renaud, J. Mitchell, S. Iezekiel
We propose and experimentally demonstrate a photonic THz signal generation technique combining a discrete optoelectronic oscillator (OEO) and optical frequency comb (OFC) generator. Using a microwave photonic filter (MPF), we generate an electrical oscillation up to 17.33 GHz with a phase noise of -103 dBc/Hz at 10 kHz offset frequency. The OEO frequency tunability is obtained by changing the bandwidth of a tunable optical band pass filter (TOBF). This can produce an electrical RF carrier from 6.58 GHz - 18.36 GHz. The OEO-driven optical comb generates 22 optical comb lines with a frequency spacing of 17.33 GHz covering a bandwidth of 360 GHz. By selecting two optical comb lines using a wavelength selective switch (WSS) and beating them in a uni-travelling carrier photodiode (UTC-PD), a THz wave is generated at 242.6 GHz with a phase noise of -78 dBc/Hz at 10 kHz offset frequency. This technique has potential for use in THz signal generation where it is possible to tune the THz carrier frequency by tuning the RF carrier generated from the OEO.
{"title":"Photonic THz Generation using Optoelectronic Oscillator-driven Optical Frequency Comb Generator","authors":"G. Hasanuzzaman, H. Shams, C. Renaud, J. Mitchell, S. Iezekiel","doi":"10.1109/MWP.2018.8552892","DOIUrl":"https://doi.org/10.1109/MWP.2018.8552892","url":null,"abstract":"We propose and experimentally demonstrate a photonic THz signal generation technique combining a discrete optoelectronic oscillator (OEO) and optical frequency comb (OFC) generator. Using a microwave photonic filter (MPF), we generate an electrical oscillation up to 17.33 GHz with a phase noise of -103 dBc/Hz at 10 kHz offset frequency. The OEO frequency tunability is obtained by changing the bandwidth of a tunable optical band pass filter (TOBF). This can produce an electrical RF carrier from 6.58 GHz - 18.36 GHz. The OEO-driven optical comb generates 22 optical comb lines with a frequency spacing of 17.33 GHz covering a bandwidth of 360 GHz. By selecting two optical comb lines using a wavelength selective switch (WSS) and beating them in a uni-travelling carrier photodiode (UTC-PD), a THz wave is generated at 242.6 GHz with a phase noise of -78 dBc/Hz at 10 kHz offset frequency. This technique has potential for use in THz signal generation where it is possible to tune the THz carrier frequency by tuning the RF carrier generated from the OEO.","PeriodicalId":146799,"journal":{"name":"2018 International Topical Meeting on Microwave Photonics (MWP)","volume":"295 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115610415","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 : 2018-10-01DOI: 10.1109/MWP.2018.8552869
D. Seidel, A. Savchenkov, D. Eliyahu, Skip Williams, A. Matsko
We report on recent experiments involving tight packaging of Ka-band photonic oscillators based on Kerr frequency combs generated in nonlinear microresonators. The devices with volume not exceeding 1 cc characterized with phase noise approaching -120 dBc/Hz at 10 kHz frequency offset are demonstrated at both 28 GHz and 35 GHz.
{"title":"Minituarized Ka-band Photonic Oscillators","authors":"D. Seidel, A. Savchenkov, D. Eliyahu, Skip Williams, A. Matsko","doi":"10.1109/MWP.2018.8552869","DOIUrl":"https://doi.org/10.1109/MWP.2018.8552869","url":null,"abstract":"We report on recent experiments involving tight packaging of Ka-band photonic oscillators based on Kerr frequency combs generated in nonlinear microresonators. The devices with volume not exceeding 1 cc characterized with phase noise approaching -120 dBc/Hz at 10 kHz frequency offset are demonstrated at both 28 GHz and 35 GHz.","PeriodicalId":146799,"journal":{"name":"2018 International Topical Meeting on Microwave Photonics (MWP)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124125384","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 : 2018-10-01DOI: 10.1109/MWP.2018.8552858
Chaitanya K. Mididoddi, Guoqing Wang, U. Habib, Hongxia Zhang, Chao Wang
Wavelength-controlled laser beam steering has been successfully demonstrated for indoor optical wireless communications (OWC). Here we demonstrate ultrafast user localization (50 million scans per second) in OWC based on real-time wavelength monitoring. A separate time stretched pulsed laser source is introduced to implement ultrafast optical wavelength (hence optical beam) scanning. A dispersion unbalanced Mach-Zehnder interferometric configuration creates chirped encoding in stretch optical pulses. The reflected optical wavelength from a remote user carrying the location information of the user is detected by real-time instantaneous microwave frequency detection. This new approach facilitates simultaneous ultrafast user localization and data transmission at communication C-band. A proof-of-concept experiment is carried out to verify the proposed approach.
{"title":"Ultrafast User Localization and Beam Steering in Optical Wireless Communication Using an In-Fibre Diffraction Grating","authors":"Chaitanya K. Mididoddi, Guoqing Wang, U. Habib, Hongxia Zhang, Chao Wang","doi":"10.1109/MWP.2018.8552858","DOIUrl":"https://doi.org/10.1109/MWP.2018.8552858","url":null,"abstract":"Wavelength-controlled laser beam steering has been successfully demonstrated for indoor optical wireless communications (OWC). Here we demonstrate ultrafast user localization (50 million scans per second) in OWC based on real-time wavelength monitoring. A separate time stretched pulsed laser source is introduced to implement ultrafast optical wavelength (hence optical beam) scanning. A dispersion unbalanced Mach-Zehnder interferometric configuration creates chirped encoding in stretch optical pulses. The reflected optical wavelength from a remote user carrying the location information of the user is detected by real-time instantaneous microwave frequency detection. This new approach facilitates simultaneous ultrafast user localization and data transmission at communication C-band. A proof-of-concept experiment is carried out to verify the proposed approach.","PeriodicalId":146799,"journal":{"name":"2018 International Topical Meeting on Microwave Photonics (MWP)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131252824","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 : 2018-10-01DOI: 10.1109/MWP.2018.8552867
Jiejun Zhao, Zhidan Ding, Fei Yang, H. Cai
We propose and demonstrate a configurable and flexible photonic true-time delay (PTTD) line for integrated transmitting/receiving optically controlled phased array antenna (PAA) based on combinations of cascaded linear chirped fiber Bragg grating (LCFBG). A large-scale beam steering angle close to the limit and high angle resolution can be obtained by precisely configuring the parameters including dispersion coefficient and the numbers of cascaded LCFBG; Multi-beams for different beam steering angles are acquired synchronously.
{"title":"Configurable Photonic True-Time Delay Line Based On Cascaded Linearly Chirped Fiber Bragg Grating","authors":"Jiejun Zhao, Zhidan Ding, Fei Yang, H. Cai","doi":"10.1109/MWP.2018.8552867","DOIUrl":"https://doi.org/10.1109/MWP.2018.8552867","url":null,"abstract":"We propose and demonstrate a configurable and flexible photonic true-time delay (PTTD) line for integrated transmitting/receiving optically controlled phased array antenna (PAA) based on combinations of cascaded linear chirped fiber Bragg grating (LCFBG). A large-scale beam steering angle close to the limit and high angle resolution can be obtained by precisely configuring the parameters including dispersion coefficient and the numbers of cascaded LCFBG; Multi-beams for different beam steering angles are acquired synchronously.","PeriodicalId":146799,"journal":{"name":"2018 International Topical Meeting on Microwave Photonics (MWP)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130473694","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 : 2018-10-01DOI: 10.1109/MWP.2018.8552868
R. Karembera, Takashi Yamaguchi, H. Toda
In this manuscript, we propose to use optical pulse compression in a dispersion managed fiber (DMF) with highly nonlinear fiber to enhance the output power in photonic-based 100-GHz RF generation. Even though the average dispersion is zero, RF gain of more than 5.0 dB can be obtained with moderate optical power to the DMF. Using four-sectioned DMF with zero average dispersion, we found the possibility of near octave-band operation in RF frequency.
{"title":"Output power enhancement in photonic-based RF generation by optical pulse compression with a dispersion managed highly-nonlinear fiber","authors":"R. Karembera, Takashi Yamaguchi, H. Toda","doi":"10.1109/MWP.2018.8552868","DOIUrl":"https://doi.org/10.1109/MWP.2018.8552868","url":null,"abstract":"In this manuscript, we propose to use optical pulse compression in a dispersion managed fiber (DMF) with highly nonlinear fiber to enhance the output power in photonic-based 100-GHz RF generation. Even though the average dispersion is zero, RF gain of more than 5.0 dB can be obtained with moderate optical power to the DMF. Using four-sectioned DMF with zero average dispersion, we found the possibility of near octave-band operation in RF frequency.","PeriodicalId":146799,"journal":{"name":"2018 International Topical Meeting on Microwave Photonics (MWP)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114526750","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 : 2018-10-01DOI: 10.1109/MWP.2018.8552884
B. Hussain, G. Serafino, F. Amato, C. Porzi, A. Bogoni, P. Ghelfi
We present a fast reconfigurable beamforming network with switching time $< 5$ ns, based on photonic integrated circuits. It allows for a complete antenna beam steering, controlling the signal phase over $> 360 ^{circ}$. The proposed beamforming network is tested by transmitting and steering a 2 Gb/s signal, without introducing any signal degradation, demonstrating its suitability to wideband, high bit-rate future 5G communications.
{"title":"Fast Photonics-Assisted Beamforming Network for Wide-Band, High Bit Rate 5G Communications","authors":"B. Hussain, G. Serafino, F. Amato, C. Porzi, A. Bogoni, P. Ghelfi","doi":"10.1109/MWP.2018.8552884","DOIUrl":"https://doi.org/10.1109/MWP.2018.8552884","url":null,"abstract":"We present a fast reconfigurable beamforming network with switching time $< 5$ ns, based on photonic integrated circuits. It allows for a complete antenna beam steering, controlling the signal phase over $> 360 ^{circ}$. The proposed beamforming network is tested by transmitting and steering a 2 Gb/s signal, without introducing any signal degradation, demonstrating its suitability to wideband, high bit-rate future 5G communications.","PeriodicalId":146799,"journal":{"name":"2018 International Topical Meeting on Microwave Photonics (MWP)","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122406620","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 : 2018-10-01DOI: 10.1109/MWP.2018.8552916
R. Bonjour, S. Welschen, J. Johansson, J. Leuthold
We introduce and demonstrate an optical beamformer concept based on a spatial light modulator that enables independent steering and shaping of a large number of beams. In addition, our microwave photonic based system has a relatively small volume and provides additional capabilities when compared to other concepts for next generation high throughput satellites.
{"title":"Steering and Shaping of Multiple Beams with a Spatial Light Modulator based Beamformer","authors":"R. Bonjour, S. Welschen, J. Johansson, J. Leuthold","doi":"10.1109/MWP.2018.8552916","DOIUrl":"https://doi.org/10.1109/MWP.2018.8552916","url":null,"abstract":"We introduce and demonstrate an optical beamformer concept based on a spatial light modulator that enables independent steering and shaping of a large number of beams. In addition, our microwave photonic based system has a relatively small volume and provides additional capabilities when compared to other concepts for next generation high throughput satellites.","PeriodicalId":146799,"journal":{"name":"2018 International Topical Meeting on Microwave Photonics (MWP)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121917819","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 : 2018-10-01DOI: 10.1109/MWP.2018.8552914
Yang Liu, A. Choudhary, G. Ren, K. Vu, B. Morrison, A. Casas-Bedoya, T. Nguyen, D. Choi, A. Mitchell, S. Madden, D. Marpaung, B. Eggleton
On-chip linear and nonlinear optical effects have shown tremendous potentials for applications in RF photonic signal processing. Combining their complementary optical properties in the same integrated platform is expected to satisfy the future increasing demands of high-performance integrated microwave photonic systems. However, the integration of linear circuits with high-performance optical nonlinearity elements remains challenging. Here, we report the first proof-of-concept demonstration of a microwave photonic notch filter based on the simultaneous integration of active Brillouin circuits and passive ring resonators on the same photonic chip, merging advanced filtering functionality, optimized performance and compactness.
{"title":"Integrating Brillouin processing with functional circuits for enhanced RF photonic processing","authors":"Yang Liu, A. Choudhary, G. Ren, K. Vu, B. Morrison, A. Casas-Bedoya, T. Nguyen, D. Choi, A. Mitchell, S. Madden, D. Marpaung, B. Eggleton","doi":"10.1109/MWP.2018.8552914","DOIUrl":"https://doi.org/10.1109/MWP.2018.8552914","url":null,"abstract":"On-chip linear and nonlinear optical effects have shown tremendous potentials for applications in RF photonic signal processing. Combining their complementary optical properties in the same integrated platform is expected to satisfy the future increasing demands of high-performance integrated microwave photonic systems. However, the integration of linear circuits with high-performance optical nonlinearity elements remains challenging. Here, we report the first proof-of-concept demonstration of a microwave photonic notch filter based on the simultaneous integration of active Brillouin circuits and passive ring resonators on the same photonic chip, merging advanced filtering functionality, optimized performance and compactness.","PeriodicalId":146799,"journal":{"name":"2018 International Topical Meeting on Microwave Photonics (MWP)","volume":"192 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122429971","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 : 2018-10-01DOI: 10.1109/MWP.2018.8552896
A. Beling, J. Morgan, K. Sun, Qianhuan Yu
The talk reviews flip-chip bonded photodiodes, waveguide photodetectors, and integrated photodiode-antenna emitters with bandwidths up to 120 GHz. Recent results from heterogeneous III-V photodiodes on silicon for analog applications will be discussed.
{"title":"High Power Integrated 100 GHz Photodetectors","authors":"A. Beling, J. Morgan, K. Sun, Qianhuan Yu","doi":"10.1109/MWP.2018.8552896","DOIUrl":"https://doi.org/10.1109/MWP.2018.8552896","url":null,"abstract":"The talk reviews flip-chip bonded photodiodes, waveguide photodetectors, and integrated photodiode-antenna emitters with bandwidths up to 120 GHz. Recent results from heterogeneous III-V photodiodes on silicon for analog applications will be discussed.","PeriodicalId":146799,"journal":{"name":"2018 International Topical Meeting on Microwave Photonics (MWP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123925321","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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