Title:
OPTICAL DEVICE AND OPTICAL COUPLING METHOD
Document Type and Number:
WIPO Patent Application WO/2019/216169
Kind Code:
A1
Abstract:
The purpose of the present invention is to easily obtain optical coupling in a wafer state and in a detachable form. An optical device 10 is provided with a waveguide comprising a waveguide core 4 and clad layers 2, 5. The thickness of the upper clad layer 5 between the surface of a coupling part 6 of the waveguide and the waveguide core 4 is set to a thickness enabling optical evanescent coupling with a waveguide or optical fiber for a monitor when the waveguide or optical fiber for the monitor is disposed in the vicinity of the surface of the coupling part 6.
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Inventors:
TAKEDA KOJI (JP)
UEDA YUTA (JP)
ISHII HIROYUKI (JP)
KAZAMA TAKUSHI (JP)
WAKITA HITOSHI (JP)
UEDA YUTA (JP)
ISHII HIROYUKI (JP)
KAZAMA TAKUSHI (JP)
WAKITA HITOSHI (JP)
Application Number:
PCT/JP2019/016944
Publication Date:
November 14, 2019
Filing Date:
April 22, 2019
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
G02B6/122; G02B6/12; G02B6/30; G02B6/42
Foreign References:
| US20040013359A1 | 2004-01-22 | |||
| JPH05257034A | 1993-10-08 | |||
| JP2006526808A | 2006-11-24 | |||
| US20040190826A1 | 2004-09-30 | |||
| JP2016156928A | 2016-09-01 | |||
| US20030123793A1 | 2003-07-03 | |||
| US20030013304A1 | 2003-01-16 | |||
| JP2019040187A | 2019-03-14 |
Attorney, Agent or Firm:
YAMAKAWA, Shigeki et al. (JP)
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