Performance issues associated with WDM optical systems using self-seeded gain-switched pulse sources

Prince Anandarajah; Liam P. Barry; Aleksandra Kaszubowska

doi:10.1117/12.463705

27 August 2003 Performance issues associated with WDM optical systems using self-seeded gain-switched pulse sources

Prince Anandarajah, Liam P. Barry, Aleksandra Kaszubowska

Proceedings Volume 4876, Opto-Ireland 2002: Optics and Photonics Technologies and Applications; (2003) https://doi.org/10.1117/12.463705
Event: OPTO Ireland, 2002, Galway, Ireland

Abstract

It is obvious that the development of a wavelength tunable source of short optical pulses will be of paramount importance for future Wavelength Division Multiplexing (WDM), optical time division multiplexed (OTDM), and hybrid WDM/OTDM optical communication systems. Self-seeding of a gain-switched Fabry-Perot (FP) laser is one of the most reliable techniques available to generate wavelength tunable optical pulses. An important characteristic of these self-seeded gain-switched (SSGS) sources is the variation in the side-mode-suppression-ratio (SMSR) as the wavelength is tuned, as this may ultimately affect their usefulness in optical communication systems. A quantitative analysis of how mode partition noise and side mode suppression ratio affects a wavelength division multiplexed system is investigated here. Bit Error Rate measurements have been carried out on a 4-channel wavelength division multiplexed set-up using tunable self-seeded gain-switched pulse sources. These measurements demonstrate the degradation in overall system performance, due to mode partition noise, as the side mode suppression ratio of the self-seeded gain-switched optical pulse sources is reduced. The results also show that the constraints on the minimum side mode suppression ratio required increase with the number of channels in the system.

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Prince Anandarajah, Liam P. Barry, and Aleksandra Kaszubowska "Performance issues associated with WDM optical systems using self-seeded gain-switched pulse sources", Proc. SPIE 4876, Opto-Ireland 2002: Optics and Photonics Technologies and Applications, (27 August 2003); https://doi.org/10.1117/12.463705

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KEYWORDS

Wavelength division multiplexing

Eye

Multiplexing

Telecommunications

Optical communications

Gain switching

Modulation

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