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Ultra-long-haul WDM/SDM transmission based on 200 Gbit/s/ch over 5,040 km using cladding pumped seven-core EDFA has been successfully demonstrated for the first time. In addition, the feasibility of the transoceanic transmission based on 100 Gbit/s/ch was confirmed.
In this paper, we review OpenFlow-based control and management technology for optical networks including multi-layer optical networks, multi-domain optical networks and elastic optical networks. We also present the interworking between OpenFlow and PCE/GMPLS control planes.
A bit-error rate (BER)-adaptive wavelength-switched optical network (WSON) employing the multiformat and multirate transmitter/receiver is experimentally demonstrated. The flexible transmitter is capable of generating binary phase-shift-keying, quadrature phase-shift-keying, eight-ary quadrature amplitude modulation, 8QAM, and 16QAM, as well as changing the symbol rate. On the other hand, the flexible...
Applicability of all-optical sampling based Q-factor monitor has been successfully verified for link-by-link fault management in transparent optical mesh networks by comparing with an electrical receiver.
Interoperable wavelength path control was successfully demonstrated on a multi-vendor WSON testbed by utilizing GMPLS signaling extension with lambda-label. Data-plane connections over GMPLS wavelength paths were also confirmed in the testbed with an 880km-in-total network.
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