A performance comparison between lumped, distributed and optical phase locked local oscillator used in the photonic generation of millimeter-wave signals for radio over fiber systems

Zaineb Samoud; Abir Hraghi; Mourad Menif

doi:10.1117/12.2522465

26 April 2019 A performance comparison between lumped, distributed and optical phase locked local oscillator used in the photonic generation of millimeter-wave signals for radio over fiber systems

Zaineb Samoud, Abir Hraghi, Mourad Menif

Author Affiliations +

Proceedings Volume 11031, Integrated Optics: Design, Devices, Systems, and Applications V; 110311A (2019) https://doi.org/10.1117/12.2522465
Event: SPIE Optics + Optoelectronics, 2019, Prague, Czech Republic

Abstract

Due to the growth of the number of communication devices over the last decades, the millimeter wave (mm-wave) band has been strong interest. In fact, this band offers a massive bandwidth and highest speed. However, in order to obtain the highest receiver sensitivity, it's necessary to generate the millimeter wave signals with low phase noise. In this paper, we propose the photonic generation of mm-wave signals with three methods. The generation is based on an optical frequency comb source (OFCS) from which five carriers are selected for 40 Gb/s Differential Quadrature Phase Shift Keying (DQPSK) modulation. At the level of the photo-detector, the optical local oscillator (LO) beats the mm-wave modulated signal. In the first case, the optical LO is distributed and emitted from an independent laser. In the second case, the optical LO which is a comb line is lumped. Finally, the optical LO is in an Optical Phase Locked Loop (OPLL) with the OFCS. Furthermore, we compare the performance of the 40 Gb/s DQPSK mm-wave generation and transmission system in the band of 200 - 300 GHz. We discuss their back-to-back (b-to-b) and over 10 km Single Mode Fiber (SMF) in term of Bit Error Rate (BER), Quality factor (Q factor), Signal to Noise Ratio (SNR) for single channel and for multiband channels in the band of 200 - 300 GHz. The system using the phase locked LO source has the high receiver sensitivity since the OPLL assured his phase stabilization. The 250 GHz channel has the best results for single band and multiband generation.

Citation Download Citation

Zaineb Samoud, Abir Hraghi, and Mourad Menif "A performance comparison between lumped, distributed and optical phase locked local oscillator used in the photonic generation of millimeter-wave signals for radio over fiber systems", Proc. SPIE 11031, Integrated Optics: Design, Devices, Systems, and Applications V, 110311A (26 April 2019); https://doi.org/10.1117/12.2522465

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KEYWORDS

Modulation

Signal to noise ratio

Receivers

Signal generators

Single mode fibers

Phase shift keying

Radio optics

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