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Glass waveguide light amplifier

A technology of waveguide light and amplifiers, applied in optics, instruments, nonlinear optics, etc., can solve the problems of large polarization correlation, poor performance and price, crosstalk between channels, etc., and achieve large gain per unit length, high performance-price ratio, small size effect

Inactive Publication Date: 2003-05-14
TIANJIN UNIV
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Problems solved by technology

[0002] Erbium-doped fiber amplifiers (EDFA) and other integrated amplifier technologies, such as semiconductor optical amplifiers (SOA), are widely used in optical communication systems. The former requires several meters of optical fiber, and its performance and price are relatively poor. The latter has a relatively low noise figure. Large, large polarization dependence and crosstalk between channels

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  • Glass waveguide light amplifier
  • Glass waveguide light amplifier
  • Glass waveguide light amplifier

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Embodiment Construction

[0013] A glass waveguide optical amplifier, which includes two passive optical waveguides 1, the passive optical waveguide 1 includes a glass matrix 2, a region 3 with a refractive index greater than the refractive index of the matrix, and the region 3 with a greater refractive index than the matrix Arranged on the surface or inside the matrix 2, it also includes an active optical waveguide 4 comprising a matrix 5 doped with at least one lanthanide phosphate or silicate, with a refractive index greater than that of the matrix The region 6 with a higher refractive index than the substrate is set on the surface or inside of the substrate, and the two passive optical waveguides 1 are respectively arranged on both sides of the active optical waveguide 4, so that the two optical waveguides Regions 3 and 6 are joined by regions 3 and 6 having a refractive index greater than that of the matrix, and the glass matrix 2 is joined to matrix 5 doped with at least one phosphate or silicate ...

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Abstract

The glass waveguide light amplifier includes two passive light waveguides, each of which consists of glass substrate and greater refraction index area on the surface or inside the substrate; and one active light waveguide, which consists of substrate with at least one kind of infiltrated phosphate or silicate of La family element and greater refraction index area on the surface or inside the substrate. Two passive light waveguides are set on two sides of the active light waveguide and the greater refraction index areas in the light waveguides are connected together. The glass waveguide light amplifier of the present invention has high performance / cost ratio, high integration level, small size and great gain in unit length, and may be used in high-capacity fiber communication system.

Description

technical field [0001] The invention relates to an optical amplifier, in particular to a glass waveguide optical amplifier. technical background [0002] Erbium-doped fiber amplifiers (EDFA) and other integrated amplifier technologies, such as semiconductor optical amplifiers (SOA), are widely used in optical communication systems. The former requires several meters of optical fiber, and its performance and price are relatively poor. The latter has a relatively low noise figure. Large, large polarization dependence and crosstalk between channels. Contents of the invention [0003] The object of the present invention is to overcome the deficiencies in the prior art and provide a cost-effective glass waveguide optical amplifier, which has the advantages of high integration, small volume, large gain per unit length, and simple manufacturing process. [0004] Technical scheme of the present invention is summarized ...

Claims

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Application Information

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IPC IPC(8): G02F1/39H04B10/291
Inventor 田贺斌杨天新王永强王颖李世忱
Owner TIANJIN UNIV
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