Title:
OPTICALLY FUNCTIONAL GLASS
Document Type and Number:
Japanese Patent JP3088790
Kind Code:
B2
Abstract:
PURPOSE: To provide optically functional glass capable of amplifying light having a wavelength band of 1.3μm, and to provide a fiber amplifier using the same, etc.
CONSTITUTION: Optically functional glass used for an optical fiber 30 contains Sm as an active substance. The Sm is excited by the presence of exciting light having a wavelength of 0.49μm, a wavelength of 0.50μm, etc., from a Xe lamp 32. The excited Sm is induced into signal light to generate radiation light having a wavelength band of 1.3μm corresponding to a transition from 4G5/2 to 6F11/2. When the excited light exceeds a prescribed strength, the signal light is amplified.
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Inventors:
Masashi Ohnishi
Takashi Kogo
Koji Nakazato
Hiroo Kanamori
Minoru Watanabe
Yoshiaki Miyajima
Takashi Kogo
Koji Nakazato
Hiroo Kanamori
Minoru Watanabe
Yoshiaki Miyajima
Application Number:
JP21899591A
Publication Date:
September 18, 2000
Filing Date:
August 29, 1991
Export Citation:
Assignee:
Sumitomo Electric Industries, Ltd.
Nippon Telegraph and Telephone Corporation
Nippon Telegraph and Telephone Corporation
International Classes:
C03C13/04; G02B6/00; G02B6/12; G02F1/35; H01S3/06; H01S3/07; H01S3/0915; H01S3/16; (IPC1-7): C03C13/04; G02B6/00; G02B6/12; G02F1/35; H01S3/07; H01S3/0915; H01S3/16
Domestic Patent References:
| JP450137A | ||||
| JP4265249A | ||||
| JP459635A |
Attorney, Agent or Firm:
Yoshiki Hasegawa (3 outside)