Physical Modeling of 10 GbE Optical Communication Systems

A physical model of 10 Gigabit Ethernet (GbE) optical communications systems based on 50-μm graded-index multimode fibers (MMFs) is presented in this paper. It includes a model of vertical cavity surface emitting lasers (VCSELs) that accounts for the spatiotemporal dynamic of such transversally multimode lasers, commonly used in 10 GbE optical systems, and an accurate MMF model. This complete model is compared to the 10 GBASE-S Link Budget Spreadsheet developed within the IEEE P802.3ae 10 GbE Task Force and to experimental transmissions. Finally, VCSEL-to-MMF interactions and their impacts on 10 GbE transmissions are detailed and explained.

[1]  Ronald Freund,et al.  High-Speed Transmission in Multimode Fibers , 2010, Journal of Lightwave Technology.

[2]  G. Stewart.  Optical Waveguide Theory , 1983, Handbook of Laser Technology and Applications.

[3]  A. Gholami,et al.  Compensation of Chromatic Dispersion by Modal Dispersion in MMF- and VCSEL-Based Gigabit Ethernet Transmissions , 2009, IEEE Photonics Technology Letters.

[4]  S.E. Golowich,et al.  A new modal power distribution measurement for high-speed short-reach optical systems , 2004, Journal of Lightwave Technology.

[5]  A. Destrez,et al.  Spatiotemporal and Thermal Analysis of VCSEL for Short-range Gigabit Optical Links , 2006 .

[6]  W. Hermann,et al.  Refractive index of doped and undoped PCVD bulk silica , 1989 .

[7]  A. Gholami,et al.  Optimization of VCSEL spatiotemporal operation in MMF links for 10-gb ethernet , 2006, IEEE Journal of Selected Topics in Quantum Electronics.

[8]  O. Georg.  Use of the orthogonal system of Laguerre-Gaussian functions in the theory of circularly symmetric optical waveguides. , 1982, Applied optics.

[9]  Steven E. Golowich,et al.  Development of system specification for laser-optimized 50-/spl mu/m multimode fiber for multigigabit short-wavelength LANs , 2003 .

[10]  D. Conn,et al.  State-space modeling of the PIN photodetector , 1992 .

[11]  Steven E. Golowich,et al.  Modeling and simulation of next-generation multimode fiber links , 2003 .

[12]  D. Donlagic.  Opportunities to enhance multimode fiber links by application of overfilled launch , 2005, Journal of Lightwave Technology.

[13]  Mode partition noise in vertical cavity surface emitting lasers , 2001, 2001 Digest of LEOS Summer Topical Meetings: Advanced Semiconductor Lasers and Applications/Ultraviolet and Blue Lasers and Their Applications/Ultralong Haul DWDM Transmission and Networking/WDM Compo.

[14]  Allan W. Snyder,et al.  Modes of optical waveguides , 1978 .