Actas de congresos
Analysis Of The Light Coupling Between Nano-waveguides Made Of Tellurite Glasses
Registro en:
9780819493965
Proceedings Of Spie - The International Society For Optical Engineering. , v. 8627, n. , p. - , 2013.
0277786X
10.1117/12.2003359
2-s2.0-84878200670
Autor
Cordoba-Ramirez J.
Hernandez-Figueroa H.E.
Amaya-Fernandez F.
Marconi J.D.
Fragnito H.L.
Institución
Resumen
This paper presents a study (simulations) of coupling losses between adjacent waveguides made of tellurite glasses. These waveguides are designed to perform parametric amplifiers (PAs). PAs have some advantageous characteristics over the other optical amplifiers: they have broadband amplification bandwidth (depending on the dispersive characteristics of the waveguide), other all-optical functionalities, and can work at ultra-high bit rates (Pbit/s). PAs are based on the nonlinear phenomena of phase matched four-wave mixing between a strong pump and a weak signal. The parametric gain increases with the waveguide length, the pump power and the nonlinear coefficient of the waveguide. The best alternative to maximize the parametric gain is to reduce the pump power as much as possible, increasing the waveguide length and/or the nonlinear coefficient of the waveguide. The latter parameter can be enhanced by increasing the nonlinear refractive index of the material (n2) or by reducing the waveguide effective area. Here we perform waveguides made of tellurite because these glasses have an n2 that goes up to 30 x 10-19 m2/W. On the other hand, the waveguide length can be increased by using an Archimedean spiral design. This geometry allows obtaining long waveguides (∼1 m) within a small area. Using the Finite Element Method we study the separation distance between adjacent waveguides in order to obtain coupling lengths higher than the waveguide length (total losses < 2 dB/m). The waveguide dimensions are optimized to obtain a monomode waveguide with dispersive characteristics to perform PAs (around ∼1550 nm spectral region). © 2013 SPIE. 8627
The Society of Photo-Optical Instrumentation Engineers (SPIE) Desurvire, E., Capacity demand and technology challenges for lightwave systems in the nest two decades (2006) J. Lightwave Technol., 24 (12), pp. 4697-4710. , Dec Berthold, J., Saleh, A.A.M., Blair, L., Simmons, J.M., Optical networking: Past, present, & future (2008) J. Lightwave Technol., 26 (9), pp. 1104-1118. , May Shastri, B.J., Plant, D.V., Scaling technologies for terabist fiber optic transmission systems (2011) Proc. SPIE, 7942. , art. 794206 Jan Tkach, R.W., Scaling optical communications for the next decade and beyond (2010) Bell Labs Tech. J., 14 (4), pp. 3-10 Namiki, S., Kurosu, T., Tanizawa, K., Kurumida, J., Hasama, T., Ishikawa, H., Nakatogawa, T., Oyamada, K., Ultrahigh-definition video transmission and extremely green optical networks for future (2011) IEEE J. Sel. Top. Quantum Electron., 17 (2), pp. 446-457. , Apr Agrawal, G.P., (2001) Nonlinear Fiber Optics, , Third edition. Academic Press. Orlando, Florida Marhic, M.E., (2007) Fiber Optical Parametric Amplifiers, Oscillators and Related Devices, , Cambridge University Press Grudinin, A.B., Dianov, E.M., Korobkin, D.V., Prokhorov, A.M., Serkin, V.N., Khaidarov, D.V., Decay of femtosecond pulses in single-mode optical fibers (1987) Journal of Experimental and Theoretical Physics Letters, 46 (11), pp. 221-225 Marconi, J.D., Callegari, F.A., Abbade, M.L.F., Fragnito, H.L., Field-trail evaluation of the Q-factor penalty introduces by fiber four-wave mixing wavelength converters (2009) Opt. Commun, 282 (1), pp. 106-116. , Jan Leuthold, J., Koos, C., Freude, W., Nonlinear silicon photonics (2010) Nature Photon., 4 (8), pp. 535-544. , Aug Ferrera, M., Razzari, L., Duchesne, D., Morandotti, R., Yang, Z., Liscidini, M., Sipe, J.E., Moss, D.J., Low-power continuos-wave nonlinear optics in doped silica glass integrated waveguide structure (2008) Nature Photon., 2 (12), pp. 737-740. , Dec Saleh, B.A.E., Teich, M.C., (1991) Fundamentals of Photonics, , John Wiley and Sons Inc. New York, United State