Title:
OPTICAL WAVEGUIDING DEVICE WITH REDUCED CROSSOVER-LOSS
Document Type and Number:
Japanese Patent JP2004295128
Kind Code:
A
Abstract:
To provide an improved planar waveguiding device comprising a plurality of optical waveguides and one or more crossover regions where two waveguides intersect at a certain angle.
This invention reduces loss and cross talk caused by a crossover by segmenting the waveguides across the region of intersection. Advantageously, the segments are enlarged in width (as compared to the transmission regions of the waveguide away from the crossover) and so arranged as to slide with respect to the longitudinal axis of the waveguide. In regions where segments intersect, each segment merges into a complex segment having a shape corresponding to the periphery of the segment intersection.
Inventors:
RASRAS MAHMOUD
Application Number:
JP2004091222A
Publication Date:
October 21, 2004
Filing Date:
March 26, 2004
Export Citation:
Assignee:
LUCENT TECHNOLOGIES INC
International Classes:
G02B6/122; G02B6/02; G02B6/124; G02B6/125; G02B6/12; (IPC1-7): G02B6/122
Domestic Patent References:
| JPH08262245A | 1996-10-11 |
Foreign References:
| WO2002023264A1 | 2002-03-21 |
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
Nobuaki Kato
Kazuo
Shinichi Usui
Ikuo Fujino
Takao Ochi
Teruhisa Motomiya
Norimichi Takanashi
Asahi Shinmitsu
Seiichiro Takahashi
Koji Yoshizawa
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