Title:
PULSED LASER LIGHT SOURCE DEVICE, AND METHOD FOR PRODUCING RARE EARTH-ADDED FIBER
Document Type and Number:
WIPO Patent Application WO/2021/256293
Kind Code:
A1
Abstract:
Provided is a pulsed laser light source device having improved overall energy efficiency while achieving high output through an amplifier. A seed laser element 11 provided in a seeder 1 is excited by light having a wavelength of 804 nm from a seeder excitation laser source 3, and resonates with a resonator 10 composed of an output mirror 12 and SESAM 13 and oscillates at a wavelength of 1064 nm. The oscillated seed laser light enters an amplification element 21 excited by light having a wavelength of 975 nm from an excitation laser source 22 for amplification and is amplified by stimulated emission. The seed laser element 11 is a neodymium-added silica glass fiber, and the amplification element 21 is an ytterbium-added silica glass fiber.
Inventors:
KAGEBAYASHI YOSHIO (JP)
YAMASAKI YU (JP)
FUJIMOTO YASUSHI (JP)
YAMASAKI YU (JP)
FUJIMOTO YASUSHI (JP)
Application Number:
PCT/JP2021/021312
Publication Date:
December 23, 2021
Filing Date:
June 04, 2021
Export Citation:
Assignee:
USHIO ELECTRIC INC (JP)
CHIBA INSTITUTE OF TECH (JP)
CHIBA INSTITUTE OF TECH (JP)
International Classes:
B23K26/36; A61B18/20; C03B37/012; H01S3/00; H01S3/067; H01S3/098; H01S3/10
Foreign References:
| JP2017535806A | 2017-11-30 | |||
| JP2014036152A | 2014-02-24 | |||
| JP2015519758A | 2015-07-09 | |||
| JP2013201328A | 2013-10-03 | |||
| JP2001353176A | 2001-12-25 | |||
| JP2007230815A | 2007-09-13 | |||
| JP2007230814A | 2007-09-13 | |||
| JP2020072153A | 2020-05-07 | |||
| US20050111500A1 | 2005-05-26 |
Attorney, Agent or Firm:
KIMURA Masayoshi (JP)
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