Title:
【発明の名称】強度分割デバイス
Document Type and Number:
Japanese Patent JP3188695
Kind Code:
B2
Abstract:
PCT No. PCT/GB91/02131 Sec. 371 Date May 20, 1993 Sec. 102(e) Date May 20, 1993 PCT Filed Dec. 2, 1991 PCT Pub. No. WO92/11554 PCT Pub. Date Jul. 9, 1992.An intensity dividing device (10) incorporates a rectangular multimode waveguide (20) connected to an input waveguide (18) and a set of four output waveguides (22). The input waveguide (18) provides a fundamental mode input excitation of CO2 laser radiation to the multimode waveguide (20). The input waveguide (18) is offset from the multimode waveguide longitudinal axis (24). Consequently, both symmetric and antisymmetric modes of the multimode waveguide (20) are excited. Modal dispersion along the multimode waveguide produces electric field intensity maxima of differing magnitude centred on respective output waveguides (22). This provides division of the input radiation into a range of differing intensity outputs.
Inventors:
The Enkins, Richard Michael
Application Number:
JP50006392A
Publication Date:
July 16, 2001
Filing Date:
December 02, 1991
Export Citation:
Assignee:
Great Britain
International Classes:
G02B6/126; G02B6/28; G02B26/08; G02F1/313; G02F2/00; H01P1/16; (IPC1-7): G02B6/28; G02B26/08; G02F1/313; G02F2/00
Domestic Patent References:
| JP1156703A | ||||
| JP3171115A | ||||
| JP3179332A | ||||
| JP5157457A | ||||
| JP144901A | ||||
| JP29202A |
Other References:
【文献】欧州特許出願公開330457(EP,A1)
【文献】米国特許4150870(US,A)
【文献】米国特許4950045(US,A)
【文献】米国特許4150870(US,A)
【文献】米国特許4950045(US,A)
Attorney, Agent or Firm:
Yoshio Kawaguchi (2 outside)