All-optical tunable dispersion compensator using ring resonator and electromagnetically induced transparency

G. Rostami; A. Rostami

doi:10.1117/12.721496

12 June 2007 All-optical tunable dispersion compensator using ring resonator and electromagnetically induced transparency

G. Rostami, A. Rostami

Author Affiliations +

Proceedings Volume 6593, Photonic Materials, Devices, and Applications II; 65931G (2007) https://doi.org/10.1117/12.721496
Event: Microtechnologies for the New Millennium, 2007, Maspalomas, Gran Canaria, Spain

Abstract

In optical applications including hybrid and integrated cases, there are some inherent phenomena such as dispersion, loss and many others that must be critically removed for performance improvement. Among these dispersion is important for light propagation and speed of transmission. Optical pulse broadening and chirping are main disadvantages of dispersion in pulse propagation. Dispersion cancellation in these applications is crucial. Dispersion compensators are widely used which are realized with different methods. In this paper a novel dispersion compensator and management system based on electromagnetically induced transparency (EIT) is introduced. For realization of EIT phenomenon in this paper four level atoms or quantum dots is used. In this analysis uniform distribution of these atoms is assumed. With application of control fields the absorption and the index of refraction are controlled. So, with intensity of a control light the dispersion factor is manipulated. For implementation of this idea ring resonator is considered. With application of control signal the group delay, phase difference and dispersion are controlled. Easy integration of the proposed technique is an important advantage of this method. Also, intensity of the control signal is main parameter for dispersion tuning. The proposed technique is all-optical dispersion management system. Our calculations show delay time and dispersion value well over nsec and 20 ps/km.nm respectively.

Citation Download Citation

G. Rostami and A. Rostami "All-optical tunable dispersion compensator using ring resonator and electromagnetically induced transparency", Proc. SPIE 6593, Photonic Materials, Devices, and Applications II, 65931G (12 June 2007); https://doi.org/10.1117/12.721496

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KEYWORDS

Dispersion

Resonators

Chemical species

Geometrical optics

Transparency

Refraction

Radio propagation

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