A high port count wavelength selective switch (HPC-WSS) is a key component when constructing colorless, directionless, and contentionless ROADM because it provides increased flexibility and scalability. We have been developing HPC-WSSs by combining a waveguide-based optical frontend and free-space optics, which we call a spatial and planar optical circuit (SPOC) platform. In this paper, we present an HPC-WSS and a low-loss transponder aggregator based on a SPOC platform, and we also describe the reliability of the frontend, which is a key enabler for the SPOC platform.
This paper describes the broadband situation in Japan and the recent development of optical metro networks, their future
prospects and technologies. First, the situation as regards the broadband infrastructure and internet traffic in Japan is
overviewed. Then, the recent development of reconfigurable optical add drop multiplexers (ROADMs) in optical metro
networks is reviewed. Finally, the future prospects for optical metro networks are described with particular emphasis on
100Gbit/s standardization, sub-λ function, and colorless/directionless ROADMs.
This paper describes photonic network technologies from the viewpoint of optical switching functionality and photonic network transparency, and presents an analysis of the various types of current photonic nodes. The analysis results show that the most important choice is whether or not the photonic network node system is constructed in an optically transparent manner. This paper also describes various types of photonic node architecture. Regarding the optical add drop multiplexing (OADM) system, the merits of the reconfigurable OADM (ROADM) are precisely analyzed.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.