Route and wavelength/waveband assignment for creation of compact hierarchical optical cross-connect for multi-ring connection

by Ishii, Kiyo, Hasegawa, Hiroshi, Sato, Kenichi
Published 2009

Simple Node Architectures for Connection of Two ROADM Rings Using Hierarchical Optical Path Routing

by Ishii, Kiyo, Hasegawa, Hiroshi, Sato, Ken-ichi
Published 2007

Hierarchical optical cross-connect architecture that implements colorless waveband add/drop ratio restriction utilizing a novel wavelength multi/demultiplexers

by Hirako, Ryosuke, Ishii, Kiyo, Hasegawa, Hiroshi, Sato, Ken-ichi, Moriwaki, Osamu
Published 2009

Compact Matrix-Switch-Based Hierarchical Optical Path Cross-Connect with Colorless Waveband Add/Drop Ratio Restriction

by MORIWAKI, Osamu, SATO, Ken-ichi, HASEGAWA, Hiroshi, ISHII, Kiyo, HIRAKO, Ryosuke
Published 2011

Monolithically Integrated Waveband Selective Switch Using Cyclic AWGs

by Ishii, Kiyo, Hasegawa, Hiroshi, Sato, Ken-ichi, Kamei, Shin, Takahashi, Hiroshi, Okuno, Masayuki
Published 2008

An ultra-compact waveband cross-connect switch module to create cost-effective multi-degree reconfigurable optical node

by Ishii, Kiyo, Hasegawa, Hiroshi, Sato, Ken-ichi, Okuno, Masayuki, Kamei, Shin, Takahashi, Hiroshi
Published 2009

Efficient ROADM-ring connecting node switch architecture that utilizes waveband routing and its realization with PLC technologies

by Ishii, Kiyo, Moriwaki, Osamu, Hasegawa, Hiroshi, Sato, Ken-ichi, Jinnouchi, Yoshiteru, Okuno, Masayuki, Takahashi, Hiroshi
Published 2009