Title:
LIGHT AMPLIFICATION DEVICE AND LIGHT AMPLIFICATION METHOD
Document Type and Number:
WIPO Patent Application WO/2022/181294
Kind Code:
A1
Abstract:
Because a light amplification device using a multicore optical fiber provides low utilization efficiency of excitation light according to a cladding excitation system, the present invention provides a light amplification device comprising: a first optical waveguide means including a first light amplification medium; a second optical waveguide means including a second light amplification medium; a first excitation light introducing means for introducing first excitation light for exciting the first light amplification medium into the first optical waveguide means; and a first residual excitation light introducing means for introducing into the second optical waveguide means first residual excitation light which is output from the first optical waveguide means and has a wavelength component of the first excitation light.
More Like This:
Inventors:
TAKESHITA HITOSHI (JP)
Application Number:
PCT/JP2022/004416
Publication Date:
September 01, 2022
Filing Date:
February 04, 2022
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
H04J14/02; H01S3/10; H04B10/291
Domestic Patent References:
| WO2019198663A1 | 2019-10-17 |
Foreign References:
| JP2005019501A | 2005-01-20 | |||
| JP2000261078A | 2000-09-22 | |||
| JP2020194937A | 2020-12-03 | |||
| JP2003273427A | 2003-09-26 | |||
| CN210640479U | 2020-05-29 |
Attorney, Agent or Firm:
KITAJIMA Hiroshi et al. (JP)
Download PDF:
Previous Patent: BISMUTH OXIDE NANOPARTICLES, DISPERSION THEREOF, RESIN COMPOSITE AND PRODUCTION METHOD
Next Patent: ANTENNA DEVICE
Next Patent: ANTENNA DEVICE