Topic
Optical Carrier transmission rates
About: Optical Carrier transmission rates is a research topic. Over the lifetime, 2463 publications have been published within this topic receiving 33293 citations.
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TL;DR: An original method based on two wave mixing in erbium doped fiber amplifier for optical carrier reduction of microwave signals and 75 % selective optical carrier attenuation are experimentally demonstrated.
Abstract: We experimentally and theoretically analyze an original method based on two-wave mixing in an erbium-doped fiber amplifier for optical carrier reduction of microwave signals. 75% optical carrier attenuation has been observed, and a 10 dB modulation depth increase of the microwave signal is experimentally demonstrated. Moreover, calculated results are in good agreement with measurements and predict that up to 80% carrier attenuation is easily possible.
11 citations
TL;DR: A simple and flexible photonic approach to implementing single sideband (SSB) modulation based on optical spectral filtering that has potential applications in optimizing the transmission performance of photonic microwave signal processing systems.
Abstract: We propose and experimentally demonstrate a simple and flexible photonic approach to implementing single sideband (SSB) modulation based on optical spectral filtering. The high-order birefringent filter is realized through the cascaded Solc-Sagnac and Lyot-Sagnac loops. By adjusting the rotation angle of the polarization controller (PC), the notch position to remove undesired sidebands changes. The frequency for SSB modulation varies accordingly. The periodical response of the filter spectrum allows both the carrier wavelength and the optical carrier to sideband ratio (OCSR) to be tunable. SSB modulation over a frequency range from 5 to 40 GHz and tunable OCSR ranging from −9.174 to 34.408 dB are obtained. The significant merits of the proposed approach are the simple structure, easy operation, large frequency range, tunable OCSR, and wavelength independence. The approach has potential applications in optimizing the transmission performance of photonic microwave signal processing systems.
11 citations
TL;DR: In this article, the realization of a low-temperature co-fired ceramic (LTCC)-based wireless transceiver with optical interface for radio-over-fiber applications involving several standards is described.
Abstract: This paper describes the realization of a low-temperature co-fired ceramic (LTCC)-based wireless transceiver with optical interface for radio-over-fiber applications involving several standards. The RF front-end including an antenna is fabricated in LTCC technology, while the optical transceiver with a single-mode optical interface is built on a silicon motherboard. The front-end operates in the 5-6-GHz band, while the modulated optical carrier is transmitted at 1.55-mum wavelength. The front-end module is an attractive solution for wireless local area network applications such as IEEE 802.11a or HIPERLAN2 requiring a direct link to an optical backbone
11 citations
TL;DR: In this article, the authors proposed and demonstrated a RoF system based on polarization multiplexing and carrier suppression to generate frequency eightfold millimeter-wave (8FMW) by adjusting the modulation index.
Abstract: In this paper, we propose and demonstrate a RoF system based on polarization multiplexing and carrier suppression to generate frequency eightfold millimeter-wave. The proposed scheme is based on one single drive Mach-Zehnder modulator and a polarization control system. By adjusting the modulation index, two-forth sidebands can be obtained. By controlling the polarization direction, our system can generate 80 GHz frequency eightfold millimeter-wave or recover optical carrier at the base station (BS). Finally, we verified the bit error rate (BER) of received optical power in the uplink and downlink. The received power penalty of uplink and downlink via 15 km single mode fiber (SMF) are 0.13 dBm and 0.34 dBm at the BER of 1 × 10 - 9 respectively. This technology opens a new path for developments in microwave photonics.
11 citations
TL;DR: In this paper, a simple, cost-effective, and optical interferometry-based optical carrier cancelation method is proposed to reduce optical interference noise (OIN), including optical beating interference and Rayleigh backscattering noise.
Abstract: Optical interference noise (OIN), including optical beating interference and Rayleigh back-scattering noise, severely degrades transmission performance in self-coherent reflective passive optical network uplink transmission systems. A simple, cost-effective, and optical interferometry-based optical carrier cancelation method is proposed to reduce OIN. In this experiment, we demonstrate the cancelation of optical carriers, which is a major cause of OIN, up to 29 dB. Under the conditions of higher fiber input power and longer transmission distance, a remarkable improvement in transmission performance in terms of the eye-pattern and bit-error-rate was achieved.
11 citations