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Proceedings Paper

Development of an optically gated optical switch using organic dye: applied to local telecommunication technology
Author(s): T. Hiraga; I. Ueno; H. Nagaeda; N. Shiga; H. Watanabe; S. Futaki; N. Tanaka
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Paper Abstract

A novel technique for optical switching using an optical gate for light path switching has been developed. The developed "optical switch" is capable of separating the incident signal light from the optical fibers directly, without conversion to the corresponding electrical signals, under optical gating and of outputting these optical signals to other multiple optical fibers. The separation of a signal light under optical gating is achievable by utilizing a high-speed thermal-lens effect generated in a thin-film element by applying the gating light to an organic thin-layer optical element (thermal-lens forming element). This system is capable of separating the incident signal light with performances of high throughput and low crosstalk. The application of the versatile switch described here to telecommunication involves the combination of both an originally developed optical network and a traditional Ethernet network. The optical network between a data server and a client PC is connected by a perfect optical circuit without any electronics circuit: no optics-electronics conversion within the circuit of data transfer. In this circuit, by rooting using several optically gated optical switches, the data in a server can be distributed to each client PC. A protocol of rooting is "circuit switching". The switching of optically gated optical switches in this optical circuit is controlled by an Ethernet network. In these networks, i.e., several client PCs are connected by a bus network with each optical switch. The advantages of the proposed system are suitable for a small and limited network for limited users with the uses of large-scale data transfer, especially within a domain (building and/or yard).

Paper Details

Date Published: 12 February 2008
PDF: 15 pages
Proc. SPIE 6891, Organic Photonic Materials and Devices X, 68910G (12 February 2008); doi: 10.1117/12.764779
Show Author Affiliations
T. Hiraga, National Institute of Advanced Industrial Science and Technology (Japan)
I. Ueno, National Institute of Advanced Industrial Science and Technology (Japan)
H. Nagaeda, Trimatiz, Ltd. (Japan)
N. Shiga, Trimatiz, Ltd. (Japan)
H. Watanabe, Inter Energy Co., Ltd. (Japan)
S. Futaki, Inter Energy Co., Ltd. (Japan)
N. Tanaka, Dainichiseika Color & Chemicals Manufacturing Co., Ltd. (Japan)

Published in SPIE Proceedings Vol. 6891:
Organic Photonic Materials and Devices X
Robert L. Nelson; Francois Kajzar; Toshikuni Kaino, Editor(s)

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