波長チェッカー - Nippon Telegraph and Telephone Corporation

Title:

波長チェッカー

Document Type and Number:

Japanese Patent JP7215584

Kind Code:

B2

Abstract:

A wavelength checker includes an optical converter composed of a conversion material that converts infrared light into visible light. The optical converter is disposed, on an output side (side from which light is output to an external space) of a plurality of first output waveguides of an optical waveguide chip, to receive emitted light that is guided through the first output waveguides and reflected on and emitted from the light emitting-side end surface. The light emitting-side end surface is a reflection surface that is inclined to face a main substrate.

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Inventors:

Takuya Tanaka
Hiroshi Ishikawa
Kota Kakuma
Atsushi Aratake

Application Number:

JP2021541765A

Publication Date:

January 31, 2023

Filing Date:

August 23, 2019

Export Citation:

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Assignee:

Nippon Telegraph and Telephone Corporation

International Classes:

G02B6/00; G02B6/12

Domestic Patent References:

JP2017068154A
JP200896237A
JP2017194565A
JP2010517066A
JP2006084489A
JP2003232682A
JP2006267961A
JP2012013527A

Foreign References:

WO2019106023A1
US20050141808
US20060072188
US20060251371
US20040096151
DE10009964A1

Attorney, Agent or Firm:

Shigeki Yamakawa
Yuzo Koike
Masaki Yamakawa
Motoyama Yasushi

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