Relative Intensity Noise in Optical Single Side Band Systems with Multiple In-Line Amplifiers: Analysis and Validation

• Published in: Fiber and integrated optics Vol. 27; no. 2; pp. 78 - 88
• Main Authors: Laurêncio, P. R., Medeiros, M. C. R.
• Format: Journal Article
• Language: English
• Published: Philadelphia, PA Taylor & Francis Group 24.03.2008; Taylor & Francis
• Subjects: Applied sciences; Circuit properties; Electric, optical and optoelectronic circuits; Electronics; Exact sciences and technology; Information, signal and communications theory; Integrated optics. Optical fibers and wave guides; Modulation, demodulation; Optical and optoelectronic circuits; optical fiber communication systems; Optical fiber communications; optical single side band (OSSB) modulation; Optical telecommunications; relative intensity noise (RIN); Signal and communications theory; Telecommunications; Telecommunications and information theory; Phase noise; Performance evaluation; Modulator; Relative intensity; optical single side band (OSSB) modulation; Non linear phenomenon; Noise spectrum; Laser noise; Simulation; Modulation; Optical amplifier; Optical fiber communication; optical fiber communication systems; relative intensity noise (RIN); Non linear effect; Single sideband
• ISSN: 0146-8030; 1096-4681
• DOI: 10.1080/01468030801975624

This article analyzes and validates through simulation the influence of fiber nonlinearity, dispersion, and loss on the Relative Noise Intensity (RIN) spectrum at fiber output in externally modulated optical single side band (OSSB) systems. The analysis includes the RIN generated by the laser source, the effect of the OSSB modulator, and noise generated by the in-line optical amplifiers. The analysis takes into account conversion between phase noise and intensity noise introduced by fiber transmission. It is shown that, depending on the operating conditions, the system performance may be predominantly affected either by the laser RIN or by the noise generated by the in-line optical amplifiers. The impact of the OSSB modulator can be relevant when the RIN of the system is dominated by the laser noise and should therefore be considered.