Broadband light source system using C waveband erbium-doped fibers to generate C+L waveband
A technology of erbium-doped optical fiber and broadband light source, which is applied in the field of lasers, can solve the problems of complex and expensive C+L band ASE light source system, achieve important theoretical significance and application value, simple structure and low cost
Active Publication Date: 2014-03-05
BEIJING INFORMATION SCI & TECH UNIV
View PDF4 Cites 5 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
In addition, for different structures, one or more isolators, ring mirrors and other optical devices often need to be inserted into the system, resulting in a complex and expensive C+L band ASE light source system
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
[0023] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the drawings, the same reference numbers represent the same or similar parts, or the same or similar steps.
[0024] Objects and functions of the present invention and methods for achieving these objects and functions will be elucidated by referring to the exemplary embodiments. However, the present invention is not limited to the exemplary embodiments disclosed below; it may be implemented in various forms. The essence of the description is merely to assist those skilled in the relevant art to comprehensively understand the specific details of the present invention.
[0025] The present invention will be described in detail with reference to the schematic diagrams. When describing the embodiments of the present invention in detail, for the convenience of explanation, the cross-sectional views showing the device structure will not be partially enlarged ac...
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 provides a broadband light source system using C waveband erbium-doped fibers to generate a C+L waveband. The broadband light source system using the C waveband erbium-doped fibers to generate the C+L waveband comprises a pump source, a coupler, a first wavelength division multiplexer, the first erbium-doped fiber, the second erbium-doped fiber, a second wavelength division multiplexer, an annular lens and an isolator, wherein the pump source and the coupler are connected in sequence, the first wavelength division multiplexer is connected to the second path of output of the coupler, the first erbium-doped fiber and the second erbium-doped fiber are connected to the first wavelength division multiplexer, the second wavelength division multiplexer is connected to the first erbium-doped fiber, the annular lens is connected to the first path of output of the second wavelength division multiplexer, and the isolator is connected to the first wavelength division multiplexer, the second path of output of the second wavelength division multiplexer is connected to the first path of output of the coupler, the first erbium-doped fiber and the second erbium-doped fiber are different in length and the same in doping concentration, and the power of the first path of output of the coupler is lower than that of the second path of output of the coupler. According to the broadband light source system using the C waveband erbium-doped fibers to generate the C+L waveband, a high-flatness C+L waveband broadband light source with the single-ended pump spectrum compensation function is simple in structure, the cost is low, a high-flatness light output ASE light source can be obtained, and the broadband light source system using the C waveband erbium-doped fibers to generate the C+L waveband has important theoretical significance and application value.
Description
technical field [0001] The invention relates to the field of lasers, in particular to a broadband light source system using a C-band erbium-doped fiber to generate a C+L-band. Background technique [0002] As a laser light source with broad application prospects, fiber lasers have the advantages of broadband tunability, high signal-to-noise ratio, and narrow output laser linewidth, etc., and can be widely used in optical fiber sensing, optical fiber communication, optical processing, etc. field. Fiber lasers are composed of pump source, resonator and gain medium. [0003] At present, the amplified spontaneous emission light source (Amplified Spontaneous Emission, ASE) has the advantages of high flatness, wide output spectrum, high output power, long service life, etc. Applications. The current marketed broadband light sources are mostly superluminescent light-emitting diodes, while the broadband light sources based on rare-earth doped erbium fiber amplified spontaneous em...
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): H01S3/067H01S3/0941
Inventor 祝连庆骆飞何巍张荫民董明利娄小平
Owner BEIJING INFORMATION SCI & TECH UNIV