Status of Industry Efforts to Deploy EDC and Advanced Modulation Schemes for Extended Reach Transport Applications

Abstract

The current status of industrial efforts to standardize interoperable optical interfaces applied to transmitters and receivers is reviewed with particular emphasis on the application of EDC and advanced modulation schemes emerging from OIF/ITU-T targeted transmissions over longer dispersion uncompensated distances.The value proposition of EDC for metro and regional networks is two-fold: reach extension, and cost reduction. An example would be to take a link that is normally limited to 80 km and with EDC technology extend it to 120 km (assume worst-case dispersion of 20ps/nm/km) with minimal or no additional expense to the system user. This eliminates the use of bulky and costly optical dispersion compensation means such as DCF. Alternatively, EDC enhanced system performance margins could be leveraged in qualification testing, allowing associated operational savings. a1229_1.pdf NWC2.pdf OFC/NFOEC 2008 978-1-55752-855-1/08/$25.00 ©2008 IEEE

Performance demonstration of 300-km dispersion uncompensated transmission using tunable chirp-managed laser and EDC integratable into small-form-factor MSAs

“…Being low power, small size and self-adaptive, the EDC receiver is easily embedded in small-form MSAs such as hot pluggable XFP transceivers, Xenpak/X2 or small-form-factor 300-pin transponders for enhanced system performance. Currently the EDC technology has started volume deployment largely in the enterprise area, and will soon enter into the metro, regional and long-haul networks [6][7].…”

“…Being low power, small size and self-adaptive, the EDC receiver is easily embedded in small-form MSAs such as hot pluggable XFP transceivers, Xenpak/X2 or small-form-factor 300-pin transponders for enhanced system performance. Currently the EDC technology has started volume deployment largely in the enterprise area, and will soon enter into the metro, regional and long-haul networks [6][7].In this paper, we demonstrate a 4-channel tunable TOSA module based on CML technology with +1 to +3 dBm average output power. Error-free transmission performance at 10.7 Gb/s up to 200 km without EDC or optical dispersion compensation is obtained.…”