Title:
【発明の名称】B▲2▼0▲3▼含有ガラスにおける光誘導回折格子
Document Type and Number:
Japanese Patent JP3404040
Kind Code:
B2
Abstract:
PCT No. PCT/GB93/01321 Sec. 371 Date Sep. 22, 1994 Sec. 102(e) Date Sep. 22, 1994 PCT Filed Jun. 24, 1993 PCT Pub. No. WO94/00784 PCT Pub. Date Jan. 6, 1994It has been demonstrated that B containing glasses are sensitive to radiation in the band 225-275 nm and, therefore, B2O3 glasses are particularly adapted to receive refractive index modulation, e.g., to make reflection gratings. Glasses containing SiO2 and B2O3 are particularly suitable when the grating is to be localized in the cladding of a fiber. Glasses containing SiO2, GeO2, and B2O3 are suitable when the grating is in the path region of a waveguide, e.g., in the core of a fiber.
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Inventors:
Ainsley, Benjamin James
Williams, Douglas Lawrence
Maxwell, Graem Douglas
Cashmere, Raman
Armitage, Jonathan Richard
Williams, Douglas Lawrence
Maxwell, Graem Douglas
Cashmere, Raman
Armitage, Jonathan Richard
Application Number:
JP50215594A
Publication Date:
May 06, 2003
Filing Date:
June 24, 1993
Export Citation:
Assignee:
British Telecommunications Public Limited Company
International Classes:
G02B5/18; C03B19/14; C03B37/018; C03C3/06; C03C3/076; C03C4/04; C03C13/04; G02B6/02; G02B6/124; (IPC1-7): G02B5/18; G02B6/10; G02B6/16
Domestic Patent References:
| JP4293027A | ||||
| JP3504650A | ||||
| JP62500052A |
Attorney, Agent or Firm:
Takehiko Suzue (3 outside)