Optical add/drop device

Details Optical add/drop device Optical add/drop device

2007-03-06

2007-03-06

Pak, Sung (Department: 2874)

Optical waveguides

Directional optical modulation within an optical waveguide

Acousto-optic

C385S016000

Reexamination Certificate

active

10960023

ABSTRACT:
A drop-type AOTF is used as a configuration for removing from a through signal an optical signal having the same wavelength as that of an optical signal to be added. To the drop-type AOTF, RF signals are input to always select all of wavelengths, and an RF signal is not input for a wavelength desired to be rejected. As a result, the optical signal having the wavelength for which the RF signal is stopped is not selected by the drop-type AOTF, and cannot pass through. Since there is only one RF signal whose input is stopped, a “drawing effect” does not occur, and control of an optical add/drop device is simplified. Additionally, since high-speed switching can be made, and a wavelength to be added can be varied, restrictions are not imposed on a network configuration.

REFERENCES:
patent: 5452314 (1995-09-01), Aronson
patent: 2003/0179988 (2003-09-01), Kai et al.
patent: 11-218790 (1999-08-01), None
patent: 11-289296 (1999-10-01), None
patent: 2000-241782 (2000-09-01), None
patent: 2003-316973 (2000-09-01), None
patent: 2001-194640 (2001-07-01), None
patent: 2001-228450 (2001-08-01), None
patent: 2002-368317 (2002-12-01), None
patent: 2003-51741 (2003-02-01), None
patent: 2003-53335 (2003-02-01), None
patent: 2003-57617 (2003-02-01), None
patent: PCT/JP03/4793 (2003-04-01), None
patent: 2003-344817 (2003-12-01), None
M. Noguchi et al., “High speed control for Acousto-optic tunable filter”, IEICE B-10-40, p. 328, 2002.
T. Nakazawa et al., “Recent Progress on AO Devices”, IEICE C vol. J86-C, No. 12, pp. 1236-1243, Dec. 2003.
Y. Kai et al., “Photonic Gateway with μs-order Wavelength path Control for Metro Access Networks,” ECOC2003, 2003.
M. Noguchi et al., “Compact 4-channel integrated Acousto-Optic Tunable filter Sub System with High-Speed Wavelength Switching”, IEICE, B—10—61, 2003.
G. Nakagawa et al., “Photonic Gateway for Metro Network using Acoustic-Optic Tunable Filter”, Technical Report of IEICE, 2003.

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