Title:
WAVELENGTH SELECTIVITY ADDING-DROPPING DEVICE
Document Type and Number:
Japanese Patent JP3662754
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a device for a wavelength division-multiplexed optical communication network of an independent transmission form by separating identified spectrum components from another spectrum component at the time of dropping through the use of a single optical switch of (1×1) or (2×2) singly or incombination with another optical switch.
SOLUTION: A wavelength selectivity adding-dropping multiplexer(WSADM) receives a WDM signal 2 with N-number of spectrum components (namely wavelength) λ1-λN and removes (namely drops) a first selected spectrum component λ1 from these plural spectrum components. In addition, a second selected spectrum component N+1 is added to these plural spectrum component. In case when a first spectrum component λ1 is dropped, the second spectrum N+1 is added for exchanging this dropped spectrum component. The spectrum components can be added or dropped.
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Inventors:
Vladimia A. Akshuk
David Jay Bishop
Joseph E. Ford
Richard E. Thrasher
David Jay Bishop
Joseph E. Ford
Richard E. Thrasher
Application Number:
JP35819498A
Publication Date:
June 22, 2005
Filing Date:
December 16, 1998
Export Citation:
Assignee:
Lucent Technologies, Inc.
International Classes:
G02B26/00; G02B6/293; H04B10/27; H04B10/291; H04J14/00; H04J14/02; H04Q3/52; H04Q11/00; G02B6/34; (IPC1-7): H04Q3/52; G02B26/00; H04B10/02; H04J14/00; H04J14/02
Domestic Patent References:
| JP9243957A | ||||
| JP9289488A | ||||
| JP9083495A |
Attorney, Agent or Firm:
Masao Okabe
Nobuaki Kato
Kazuo
Shinichi Usui
Ikuo Fujino
Takao Ochi
Teruhisa Motomiya
Norimichi Takanashi
Asahi Shinmitsu
Seiichiro Takahashi
Koji Yoshizawa
Hirofumi Mimata
Nobuaki Kato
Kazuo
Shinichi Usui
Ikuo Fujino
Takao Ochi
Teruhisa Motomiya
Norimichi Takanashi
Asahi Shinmitsu
Seiichiro Takahashi
Koji Yoshizawa
Hirofumi Mimata