scholarly journals Experimental Transmission of Digital Data Coded on Electrical Carriers at 2.1 GHz and 4.2 GHz by Using a Microwave Photonic Filter

Electronics ◽  
2020 ◽  
Vol 9 (5) ◽  
pp. 833
Author(s):  
Ana Gabriela Correa-Mena ◽  
Alicia Vera-Marquina ◽  
Alejandro García-Juárez ◽  
Jorge Rodríguez-Asomoza ◽  
Ignacio Enrique Zaldívar-Huerta
Keyword(s):  
Signal Transmission ◽  
Single Mode ◽  
Passive Optical Network ◽  
Digital Data ◽  
Digital Signals ◽  
High Definition ◽  
Microwave Band ◽  
Multimode Laser ◽  
Microwave Photonic ◽  
Band Pass

This paper proposes and demonstrates the use of filtered microwave band-pass windows situated at 2.1 GHz and 4.2 GHz as electrical carriers to transmit digital signals. The use of an appropriate microwave photonic filter (MPF) allows for the generation of the microwave band-pass windows. The key parameters of the filtering effect are the intermodal separation of a multimode laser diode (MLD), the chromatic dispersion parameter of the optical link, and its own length. Experimentally, it is demonstrated that the filtered band-pass windows can be used as electrical carriers to transmit digital signals at frequencies of 50 MHz, 100 MHz, and 150 MHz over 25.31 km of single-mode-standard-fiber (SM-SF). The quality Q-factor, jitter, and bit-error-rate are the parameters that allow for the evaluation of the quality of the digital signal transmission. The obtained results allow for the proposition of this photonic architecture in a passive optical network (PON) to distribute services like Internet Protocol (IP) telephony, internet, streaming video, and high definition television.

scholarly journals Demonstration of a Duplex Microwave Photonic Filter and Its Reconfigurability in a Frequency Range of 0–10 GHz

Electronics ◽  
2020 ◽  
Vol 9 (12) ◽  
pp. 2159
Author(s):  
Leidy Johana Quintero-Rodríguez ◽  
José Roberto Warnes-Lora ◽  
Min Won Lee ◽  
Jorge Rodríguez-Asomoza ◽  
Ignacio Enrique Zaldívar-Huerta
Keyword(s):  
Signal To Noise Ratio ◽  
Chromatic Dispersion ◽  
Optical Filter ◽  
Single Mode ◽  
Digital Data ◽  
Frequency Range ◽  
Optical Source ◽  
Multimode Laser ◽  
Microwave Photonic ◽  
Birefringent Optical Fiber

In this paper, we have demonstrated a duplex microwave photonic filter system. The reconfigurability of a microwave passband filter by using a birefringent optical filter has also been demonstrated experimentally. The effect of filtering normally depends on the intermodal separation of a multimode laser diode (MLD), as well as the chromatic dispersion parameter and the length of a Single Mode-Standard Fiber (SM-SF). However, in this work, the intermodal separation of the MLD is altered by an optical filter which consists of a section of birefringent optical fiber (BOF) placed between crossed polarizers. Using this filter, six passbands in the frequency range of 0–10 GHz are obtained. Our duplex Microwave Photonic Filter (MPF) system is driven by only a single optical source. Performance evaluation for the filtered passband is also given in terms of the Signal-to-Noise-Ratio (SNR). On average, an SNR of 13.87 dB is obtained for all the passbands generated by our duplex Microwave Photonic Filter (MPF) system. For potential applications, the generated passbands may be used as radio frequency (RF) carriers to transmit analog or digital data in an optical communications system.

scholarly journals A Viable Passive Optical Network Design for Ultrahigh Definition TV Distribution

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Shahab Ahmad Niazi ◽  
Xiaoguang Zhang ◽  
Lixia Xi ◽  
Abid Munir ◽  
Muhammad Idrees ◽  
...  
Keyword(s):  
Optical Network ◽  
High Capacity ◽  
Single Mode ◽  
Single Mode Fiber ◽  
Passive Optical Network ◽  
High Definition ◽  
International Telecommunication Union ◽  
Single Carrier ◽  
Optical Network Design ◽  
High Definition Tv

International Telecommunication Union (ITU) has recently standardized ultrahigh definition television (UHD-TV) with a resolution 16 times more than the current high definition TV. An increase in the efficiency of video source coding or in the capacity of transmission channels will be needed to deliver such programs by passive optical network (PON). In this paper, a high capacity integrated PON infrastructure is proposed to overlay ultrahigh definition television by a complete passive coexistence of 10G-PON (XG-PON) and single carrier directly modulated, duo-binary 40G-PON (XLG-PON) signal. The simulation results show error-free transmission performance and further distribution to 32 optical network units (ONUs) on broadcast basis with negligible power penalty over 20 km of bidirectional standard single mode fiber.

scholarly journals Optical Transmission of an Analog TV-Signal Coded at 2.24 GHz and Its Distribution by Using a Radiating Cable

Electronics ◽  
2020 ◽  
Vol 9 (6) ◽  
pp. 917
Author(s):  
Ana Gabriela Correa-Mena ◽  
Jorge Alberto Seseña-Osorio ◽  
Melissa Eugenia Diago-Mosquera ◽  
Alejandro Aragón-Zavala ◽  
Ignacio Enrique Zaldívar-Huerta
Keyword(s):  
Indoor Environment ◽  
Optical Transmission ◽  
Signal To Noise Ratio ◽  
Electric Signal ◽  
Signal To Noise ◽  
Microwave Band ◽  
Microwave Photonic ◽  
Band Pass ◽  
Radiating Cable ◽  
Measurement Location

In this work, an alternative technology to extend wireless coverage beyond the conventional methods of providing radio propagation coverage is presented. The use of a radiating cable is proposed for difficult-to-reach areas. In this regard, an indoor radiating cable is successfully employed for the distribution of an analog electric signal in a fiber-radio scheme using a microwave photonic filter. A filtered microwave band-pass window located at 2.24 GHz is used as an electrical carrier to transmit an analog TV-signal of 67.25 MHz over an optical link of 25.28 km. Measurements are carried out in an indoor environment. Experimental results demonstrate that the recovered signal is of good quality in each measurement location, exhibiting on average a signal-to-noise-ratio (SNR) of around 31.60 dB.

Novel scheme enabling broadcast signal transmission in WDM passive optical network

2011 ◽  
Vol 9 (4) ◽  
pp. 040602-40605 ◽  
Author(s):  
马雪娇 Xuejiao Ma ◽  
甘朝钦 Chaoqin Gan
Keyword(s):  
Signal Transmission ◽  
Optical Network ◽  
Passive Optical Network
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