Unlock instant, AI-driven research and patent intelligence for your innovation.

Optical fiber coupling method and optical coupler

A technology of optical coupler and optical fiber, applied in the field of optical fiber

Pending Publication Date: 2022-05-13
UNIV LAVAL
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although existing methods of optically coupling fibers to each other are somewhat satisfactory, there is still room for improvement

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Optical fiber coupling method and optical coupler
  • Optical fiber coupling method and optical coupler
  • Optical fiber coupling method and optical coupler

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0060] Formed by optically coupling a coreless fiber made of silica-based glass with a length of 75 mm and a down taper with a length of 2.0 cm to a double-clad fiber made of silica-based glass with a diameter of 22 μm at the waist, optocoupler. Use low-index polymers to secure contacts. A coupling efficiency of about 92% was achieved with this coupler.

example 2

[0062] Optical couplers were formed by optically coupling a coreless fiber made of silica-based glass and a taper with a length of 75 mm to a double-clad fiber made of phonon energy glass, more specifically ZBLAN. Use low-index polymers to secure contacts. A coupling efficiency of about 90% is achieved with this coupler.

example 3

[0064] An all-fiber silica-fluorine glass fiber composite was formed by optically coupling a coreless fiber made of silica-based glass fusion-spliced ​​with a coreless fiber cone with a length of 90 mm to a double-clad fiber made of 7% erbium-doped ZBLAN. harness. Use low-index polymers to secure contacts. A coupling efficiency of about 90% is achieved with this coupler.

[0065] It will be appreciated that the above described and illustrated examples are intended to be illustrative only. For example, it is understood that in some embodiments, a feed fiber will be optically coupled to the cladding of a receive fiber. In some embodiments, there is no need to evaporate the liquid prior to bonding and / or fusing the receive and feed fibers to each other, as the liquid can simply be removed using a cloth. Additionally, in some embodiments, the feed fiber may be cut at some point along the descending taper, thereby removing the descending taper, the waist, and a portion of the as...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Lengthaaaaaaaaaa
Lengthaaaaaaaaaa
Login to View More

Abstract

Methods of optically coupling a first optical fiber and a second optical fiber to each other are described. The method generally has the steps of guiding a free end of a first optical fiber, a second optical fiber, and a liquid into close proximity to each other within a coupling region, the free end of the first optical fiber having a dimension below a critical dimension, the free end of the first optical fiber moving within the liquid to contact the second optical fiber along a given coupling length, the contact optically couples the free end of the first optical fiber and the second optical fiber to each other.

Description

technical field [0001] The improvement relates generally to optical fibers, and more particularly to optically coupling optical fibers to each other. Background technique [0002] In some types of optical couplers, a smaller fiber (such as a fiber taper) will be optically coupled to a larger fiber, or vice versa, so that an optical signal propagating in one fiber is transmitted to the other with the highest possible efficiency. a fiber optic. In this case, it can be challenging to bring the smaller fiber to the larger fiber in a manner that facilitates continuous optical coupling between the smaller fiber and the larger fiber. Existing methods of optically coupling a smaller fiber to a larger fiber typically involve positioning the smaller fiber and the larger fiber next to each other under tension. While tension is maintained on the two fibers, the optical coupling between the smaller and larger fibers is fixed by bringing them into contact and then fusing or otherwise bo...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G02B6/255
CPCG02B6/25G02B6/2821G02B6/2852H01S3/094019H01S3/06754G02B6/3616G02B6/305
Inventor 查尔斯·马特-布雷顿索菲·拉罗谢尔西蒙·杜瓦尔雷亚尔·瓦利马丁·贝尼耶
Owner UNIV LAVAL