Title:
Light equipment, an optical interference fault imaging device using this, and a light oscillating method
Document Type and Number:
Japanese Patent JP6071203
Kind Code:
B2
Abstract:
A light source device includes an optical resonator that includes an optical gain medium amplifying light and an optical waveguide having wavelength dispersion of a refractive index, and an optical modulator that modulates an intensity of the light in the optical resonator. An oscillation wavelength of an optical pulse is varied according to a modulation frequency of the optical modulator. The optical modulator can adjust transmittance of the light passing through the optical modulator, and a duty ratio of a transmission time of the light passing through the optical modulator is less than 50%.
Inventors:
Inoue Shinhiro
Tomohiro Yamada
Makoto Oikawa
Tomohiro Yamada
Makoto Oikawa
Application Number:
JP2012012130A
Publication Date:
February 01, 2017
Filing Date:
January 24, 2012
Export Citation:
Assignee:
Canon Inc
International Classes:
H01S3/107; G01N21/17; G02F1/01; H01S3/00; H01S3/067; H01S3/10
Domestic Patent References:
| JP6090050A | ||||
| JP9199777A |
Other References:
草刈 修、他,光ファイバ増幅器と強度変調器を用いた高速広帯域波長可変モード同期レーザ,電子情報通信学会2008年総合大会講演論文集 エレクトロニクス1,2008年 3月 5日,p.315
R.Huber, et al.,"Fourier Domain Mode Loking (FDML):A new laser operating regime and applocations for optical coherence tomography",OPTICS EXPRESS,2006年 4月17日,Vol.15,No.8,p.3225-3237
Y. Nakazaki, et al.,"Fast and wide tuning range wavelength-swept fiber laser based on dispersion tuning and its application to dynamic FBG sensing",OPTICS EXPRESS,2009年 5月11日,p.8310-8318
R.Huber, et al.,"Fourier Domain Mode Loking (FDML):A new laser operating regime and applocations for optical coherence tomography",OPTICS EXPRESS,2006年 4月17日,Vol.15,No.8,p.3225-3237
Y. Nakazaki, et al.,"Fast and wide tuning range wavelength-swept fiber laser based on dispersion tuning and its application to dynamic FBG sensing",OPTICS EXPRESS,2009年 5月11日,p.8310-8318
Attorney, Agent or Firm:
Takuma Abe
Sogo Kuroiwa
Sogo Kuroiwa