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Proceedings Paper

Optical beam-shifter module with high extinction ratio for 1024-input-port optical-switching network
Author(s): Seiichi Shirai; Kazuo Kimura; Yukio Irita; Noboru Naito; Tadashi Serikawa; Shigeto Kohda; Noriyoshi Yamauchi; Masayasu Yamaguchi
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Paper Abstract

An optical beam shifter module consisting of liquid-crystal cells and a birefringent plate is investigated for a 1024-input-port switching network. High extinction ratio (> 20 dB) and low insertion loss (0.5 dB) are achieved by optimal device design. Precise optical alignment is obtained without any adjustment mechanism by using assembly baseplate and an optical assembly bench.

Paper Details

Date Published: 28 June 1993
PDF: 7 pages
Proc. SPIE 1807, Photonic Switching, (28 June 1993); doi: 10.1117/12.147926
Show Author Affiliations
Seiichi Shirai, NTT Interdisciplinary Research Labs. (Japan)
Kazuo Kimura, NTT Interdisciplinary Research Labs. (Japan)
Yukio Irita, NTT Interdisciplinary Research Labs. (Japan)
Noboru Naito, NTT Interdisciplinary Research Labs. (Japan)
Tadashi Serikawa, NTT Interdisciplinary Research Labs. (Japan)
Shigeto Kohda, NTT Interdisciplinary Research Labs. (Japan)
Noriyoshi Yamauchi, NTT Interdisciplinary Research Labs. (Japan)
Masayasu Yamaguchi, NTT Communication Switching Labs. (Japan)


Published in SPIE Proceedings Vol. 1807:
Photonic Switching

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