Title:
光学的アッド/ドロップスイッチ
Document Type and Number:
Japanese Patent JP4819246
Kind Code:
B2
Abstract:
An optical switch, preferably an add/drop switch, includes a minimal number of two-state switching arrangements (102, 104, 106 and 108; and 188, 190, 192 and 194), thereby facilitating a reduction of switch complexity. Light pulses entering the switch via a given input port (110, 112, 114 and 116) may be directed to either a corresponding output port (118, 120, 122 and 124) or a corresponding drop port (126, 128, 130 and 132) by the operation of the switching arrangements. Light pulses entering the switch via a given add port (134, 136, 138 and 140) may be directed to a corresponding output port or may be disbursed by the operation of the switching arrangements. The switching arrangements are toggled between reflective and transmissive states. In the preferred embodiment, the two-state switching arrangements are controlled by the manipulation of index matching fluid within trenches (168, 170, 172 and 174; and 196, 198, 200, 202, 204, 206, 208 and 210). Additionally, in the preferred embodiment, the switching arrangements are configured such that a given light pulse interacts with only one trench, thereby minimizing the overall signal loss and loss non-uniformities within the switch.
Inventors:
Jonathan P.R.Lacy
Douglas M. Bernie
Douglas M. Bernie
Application Number:
JP2001160732A
Publication Date:
November 24, 2011
Filing Date:
May 29, 2001
Export Citation:
Assignee:
Avago Technologies Fiber IP (Singapore) Private Limited
International Classes:
G02B26/08; H04Q3/52; G02B6/35; G02B26/02; H04B10/27; H04B10/29; G02B6/34
Domestic Patent References:
| JP2244112A | ||||
| JP2000155275A | ||||
| JP2000032510A | ||||
| JP10090735A |
Attorney, Agent or Firm:
Satoshi Furuya
Takahiko Mizobe
Kiyoharu Nishiyama
Takahiko Mizobe
Kiyoharu Nishiyama