OPTICAL MODE CONVERTER AND OPTICAL MODE MULTIPLEXER/DEMULTIPLEXER

To provide an optical mode converter using a tapered waveguide, which enables easy and efficient design of a taper structure.SOLUTION: Provided herein is an optical mode converter with a waveguide having a tapered shape width-wise. Defining a Z-axis as a tapering direction, a rate of change dw/dz of...

Full description

Saved in:
Bibliographic Details
Main Authors MORI TAKAYOSHI, SAITO KUNIMASA, FUJISAWA TAKESHI, IMADA RYOTA, YAMASHITA YOKO, NAKAJIMA KAZUHIDE, SAKAMOTO YASUSHI, SATO TAKANORI
Format Patent
LanguageEnglish
Japanese
Published 09.03.2023
Subjects
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
Online AccessGet full text

Cover

More Information
Summary:To provide an optical mode converter using a tapered waveguide, which enables easy and efficient design of a taper structure.SOLUTION: Provided herein is an optical mode converter with a waveguide having a tapered shape width-wise. Defining a Z-axis as a tapering direction, a rate of change dw/dz of the waveguide width at an anti-crossing coordinate z0 corresponds to a maximum value -amin (amin≠0), and the rate of change of the waveguide width becomes minimum near the coordinate z0.SELECTED DRAWING: Figure 2A 【課題】本開示は、テーパー形状の導波路を用いた光モード変換器において、簡便かつ効率的にテーパー構造を設計可能にすることを目的とする。【解決手段】本開示は、導波路幅がテーパー形状である導波路を備え、前記テーパー形状の細くなっていく方向をｚ軸とした場合に、反交差する座標ｚ０での導波路幅の変化率ｄｗ／ｄｚが極大値－ａｍｉｎ（ａｍｉｎ≠０）を持ち、座標ｚ０付近で導波路の変化率が最小となることを特徴とする光モード変換器である。【選択図】図２Ａ
Bibliography:Application Number: JP20210138178