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2016 Fiscal Year Final Research Report

Development of fiber laser that enables high-energy-efficiency and improvement of output power that mainly used domestic technology

Research Project

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Project/Area Number 26390090
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Optical engineering, Photon science
Research InstitutionKindai University

Principal Investigator

YOSHIDA Minoru  近畿大学, 理工学部, 教授 (50388493)

Co-Investigator(Renkei-kenkyūsha) FUJIMOTO Yasushi  大阪大学, レーザーエネルギー学研究センター, 講師 (70343241)
MAKANO Hitoshi  近畿大学, 大学院総合理工学研究科(兼担), 教授 (20257968)
Project Period (FY) 2014-04-01 – 2017-03-31
Keywordsファイバレーザー / 位相加算 / 位相結合 / コヒーレント加算 / コヒーレント共振器結合 / 光ファイバ / ファイバ中の位相制御 / 全単一モードファイバ構成ファイバレーザー
Outline of Final Research Achievements

Fiber lasers have high performances. Therefore, the fiber lasers are applied in manufacturing fields. We developed the high power fiber laser without using the double-clad fiber technology. Five fiber laser modules (FLMs) were combined to single fiber laser cavity by our coherent-cavity-combining technologies.
In this research, we achieved the development of below indispensable technology concerning the coherent-cavity-combining systems. High precision fiber length control system that has resolution of 20 nm. The combining methods of arbitrary number of fiber laser module. Finally, we achieved 5.09 W laser output power from a single single mode fiber by combined five FLMs.

Free Research Field

工学

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Published: 2018-03-22  

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