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Dive into the research topics where Masaki Hiroi is active.

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Featured researches published by Masaki Hiroi.


conference on lasers and electro optics | 2008

Over 10W single-pass second harmonic green light generation with periodically poled MgO doped congruent LiNbO 3

Yasuhiro Satoh; Yasuhiro Higashi; Masaki Hiroi; Tsuyoshi Suzudo; Hideki Ishizuki; Takunori Taira

10.2 W green light was generated by single pass SHG from quasi CW operated 33 W microchip Nd:YVO4 laser with periodically poled MgO-doped congruent lithium niobate (PPMgLN). PPMgLN length and thickness were 20 mm and 1 mm, respectively.


Advanced Solid-State Photonics (2008), paper WD4 | 2008

9.6-W cw Green Output from Diode Edge-Pumped Composite Vanadate Microchip Laser with Small Packaged Volume

Tsuyoshi Suzudo; Masaki Hiroi; Yasuhiro Higashi; Yasuhiro Satoh; Yoichi Sato; Hideki Ishizuki; Takunori Taira; Yasunori Furukawa

9.6-W cw green output power from 150-cm3volume was achieved. In order to reduce the package size including intra cavity frequency doubling using LiB3O5, a composite vanadate microchip was directly edge-pumped by diode bars.


Archive | 1997

Image forming apparatus having a mounting/dismounting mechanism

Yuichi Aoyama; Makoto Obu; Masaki Hiroi; Katsuaki Miyawaki; Nobuhiko Umezawa; Masami Hiramatsu


Archive | 2003

Compound optical element, its manufacturing method, and optical transceiver

Kazuhiko Adachi; Masaki Hiroi; Toshihiro Ishii; Koji Mori; Shunichi Sato; Morimasa Uenishi; 上西 盛聖; 佐藤 俊一; 安達 一彦; 廣居 正樹; 森 孝二; 石井 稔浩


Archive | 1990

Image reading apparatus having a contact type image sensor device

Masaki Hiroi; Ken Oikawa; Koichi Haga


Archive | 2004

Method of connecting optical components, optical interconnection system and optical-fiber-wiring module

Masaki Hiroi; Koji Mori; 正樹 廣居; 孝二 森


Archive | 2009

LIGHT EMITTING DEVICE, MULTI-BEAM LIGHT SOURCE DEVICE, MULTI-BEAM SCANNER, AND APPARATUS FOR FORMING IMAGE

Masaki Hiroi; Toshihiro Ishii; Takayuki Yamaguchi; 隆行 山口; 正樹 廣居; 稔浩 石井


Archive | 2004

Light emitting module, its manufacturing method, optical transceiver module, and optical communication system

Kazuhiko Adachi; Masaki Hiroi; Toshihiro Ishii; Koji Mori; Shunichi Sato; Morimasa Uenishi; 俊一 佐藤; 一彦 安達; 正樹 廣居; 孝二 森; 稔浩 石井


Archive | 1989

Contact type image sensor with electric shielding

Masaki Hiroi; Masumitsu Ino; Takehito Nagata; Masumi Shimada


Archive | 2010

Optical device, optical scanning device, image forming apparatus, and manufacturing method of optical device

Takayuki Yamaguchi; Satoru Sugawara; Kazuhiko Adachi; Masaki Hiroi

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