Optical fiber for wavelegnth division multiplexing communications

A wavelength division multiplexing and optical fiber technology, which is applied in the direction of multi-layer core/cladding fiber, cladding fiber, optical waveguide light guide, etc. question

Inactive Publication Date: 2002-10-23
SAMSUNG ELECTRONICS CO LTD
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  • Abstract
  • Description
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Problems solved by technology

However, in this case, due to nonlinear effects such as four-wave mixing, the single-mode fiber for this WDM communication is limited to multi-channel transmission because the wavelength band of the fiber is different from the gain wavelength range of the erbium-doped fiber. etc., which makes multi-channel transmission more difficult
In addition, si...

Method used

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  • Optical fiber for wavelegnth division multiplexing communications
  • Optical fiber for wavelegnth division multiplexing communications
  • Optical fiber for wavelegnth division multiplexing communications

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Embodiment Construction

[0020] In order to highlight the gist of the present invention, only the parts necessary for understanding the present invention are described here, and other parts are omitted here.

[0021] figure 1 A cross section of a wavelength division multiplexed communication optical fiber according to the present invention is shown. Such as figure 1 As shown, the inner core 12 of the wavelength division multiplexing fiber is located at the center of the fiber with a radius of a0. The outer core 14 is deposited on the outer surface of the inner core 12 with a radius b0 (b0>a0). The inner cladding 16 and the outer cladding are formed on the outer surface of the outer core 14 . figure 1 The shown wavelength division multiplexing fiber structure is formed by sequentially depositing the inner core 12 to the outer cladding 18 through modified chemical vapor deposition (MCVD) using a deposited quartz tube.

[0022] figure 1 The refractive index of the inner core 12 is shown as constant ...

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Abstract

An optical fiber for wavelength division multiplexing (WDM) communication, which includes: an inner core located on the central axis of the optical fiber with a specific radius and a refractive index; an outer core formed on the outside of the inner core with a specific radius, which The refractive index decreases linearly from its inside to outside; a cladding with a specific radius is formed on the outside of the outer core. The optical waveguide can be optimized by controlling the refractive index of the optical waveguide in the wavelength band with the desired dispersion.

Description

technical field [0001] The present invention relates to an optical fiber for wavelength division multiplexing (WDM) communication, and more particularly to an optical fiber having a cross-section that optimizes dispersion within a specific wavelength band by adjusting the refractive index of an optical waveguide. Background technique [0002] Generally speaking, wavelength division multiplexing communication refers to a communication method that transmits multiple optical signals with different wavelengths in an optical fiber, which can make full use of the low-loss characteristics of optical fibers in a wide band. Therefore, the application of wavelength division multiplexing in communication technology is more and more extensive at present. [0003] It is now known that the most commonly used optical fiber in the above-mentioned wavelength division multiplexing communication must have a wide communication area to transmit signals in the 1550nm band. According to the perfo...

Claims

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Application Information

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IPC IPC(8): G02B6/02G02B6/036
CPCG02B6/02271G02B6/0281G02B6/0286G02B6/03633G02B6/02
Inventor 白云出吴庆焕宋桂林李骁军南宫基云吴承薰
Owner SAMSUNG ELECTRONICS CO LTD
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