Title:
SUBSTRATE-TYPE OPTICAL WAVEGUIDE ELEMENT
Document Type and Number:
WIPO Patent Application WO/2016/117532
Kind Code:
A1
Abstract:
According to the present invention, the effective refractive index of a TM0 polarized wave guided through a first core (11a) when existing alone and the execution refractive index of a TE0 polarized wave guided through a second core (11b) when existing alone are continuous as a function of distance from a starting point of a parallel traveling section (I), a magnitude relation between the effective refractive index of the odd mode of the TE0 polarized wave guided through the parallel traveling section (I) and the effective refractive index of the even mode of the TM0 polarized wave guided through the parallel traveling section (I) is reversed at the starting point and the ending point of the parallel traveling section (I), and the refractive index distribution in an interactive section (i) is vertically asymmetric.
Inventors:
OKA AKIRA (JP)
Application Number:
PCT/JP2016/051375
Publication Date:
July 28, 2016
Filing Date:
January 19, 2016
Export Citation:
Assignee:
FUJIKURA LTD (JP)
International Classes:
G02B6/126; G02B6/125; G02B6/14; G02F1/01
Domestic Patent References:
| WO2014208601A1 | 2014-12-31 |
Foreign References:
| JP2004529377A | 2004-09-24 |
Other References:
JING WANG ET AL.: "Novel ultra-broadband polarization splitter-rotator based on mode-evolution tapers and a mode-sorting asymmetric Y-junction", OPTICS EXPRESS, vol. 22, no. 11, 29 May 2014 (2014-05-29), pages 13565 - 13571
Attorney, Agent or Firm:
HARAKENZO WORLD PATENT & TRADEMARK (JP)
Patent business corporation HARAKENZO WORLD PATENT & TRADEMARK (JP)
Patent business corporation HARAKENZO WORLD PATENT & TRADEMARK (JP)
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