Fiber combiner and method of manufacturing the same, method of reducing recurrent light of fiber, and semiconductor laser
A fiber combiner and semiconductor technology, applied in the coupling of optical waveguides, the structure/shape of the active medium, etc., to achieve the effect of reducing back reflection
Inactive Publication Date: 2018-04-17
HANS LASER TECH IND GRP CO LTD
View PDF7 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] Based on this, it is necessary to provide an optical fiber combiner and its preparation method, a method for reducing optical fiber retroreflection and a semiconductor laser to solve the problem of overheating and damage to the coating layer of the input fiber caused by retroreflection.
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0034] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.
[0035] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes of ill...
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
Login to View More Abstract
The invention relates to a fiber combiner and a method of manufacturing the same, a semiconductor laser, and a method of reducing recurrent light of a fiber. The fiber combiner comprises an input fiber bundle and an output fiber. The input fiber bundle consists of a plurality of input optical fibers and a tapered optical fiber; one end of each of input optical fibers is processed by fused biconical taper treatment to form the tapered optical fiber; one end of the tapered optical fiber is connected with the plurality of input optical fibers and the other end is welded with the output fiber; andat least one part of the outer surface of a cladding layer of the tapered optical fiber has an irregular structure. According to the invention, because the irregular structure is formed at the outersurface of the cladding layer, the incident angle of the partial recurrent light emitted outwardly from the cladding layer at the outer surface of the cladding layer is smaller than a critical angle;and thus the part of recurrent light refracts the cladding layer, so that the recurrent light is reduced effectively.
Description
technical field [0001] The invention relates to the field of laser welding, in particular to an optical fiber beam combiner and a preparation method thereof, a method for reducing optical fiber retroreflection, and a semiconductor laser. Background technique [0002] With the improvement of output power, conversion efficiency, reliability, service life and manufacturing method and the reduction of cost of semiconductor lasers, semiconductor lasers are more and more widely used in industry, manufacturing, military, scientific research, aviation, display, entertainment and medical treatment and other fields. With the continuous development of direct semiconductor laser processing technology, the demand for high-power and high-performance semiconductor lasers is increasing day by day in recent years, which promotes the continuous development of semiconductor laser technology at home and abroad towards higher power. The high-power semiconductor laser of the optical fiber beam c...
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
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/255H01S3/067
Inventor 朱宝华刘伟方志强罗又辉陆业钊王瑾高云峰
Owner HANS LASER TECH IND GRP CO LTD