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A Miniaturized Erbium-Ytterbium Co-doped Superfluorescent Fiber Light Source

A fiber optic light source and super-fluorescence technology, which is applied in the direction of lasers, laser components, and the structure/shape of active media, can solve problems affecting output power and light source stability, and increase the difficulty of end-face coating processes, etc., to improve output stability performance, good output characteristics, and the effect of shortening the length of the optical fiber

Active Publication Date: 2017-01-18
INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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Problems solved by technology

[0007] At present, the common light source is to coat the end face of the optical fiber with a reflective film, but because the diameter of the optical fiber is too small, generally the core diameter is several microns, which makes the end face coating process more difficult. If the end face or the coating surface is uneven, it will affect to output power and light source stability

Method used

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  • A Miniaturized Erbium-Ytterbium Co-doped Superfluorescent Fiber Light Source
  • A Miniaturized Erbium-Ytterbium Co-doped Superfluorescent Fiber Light Source

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Embodiment Construction

[0042] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0043] figure 1 Shows the side view structural diagram of the miniaturized erbium-ytterbium co-doped superfluorescent fiber light source provided by the present invention, the light source includes a refrigerator 1, a heat sink 2, a transition heat sink 3, a thermistor 4, and a 980nm laser tube core 5 , wedge lens 6, dual-lens coupling system 7, high-reflectivity film 8, erbium-ytterbium co-doped phosphate glass single-mode optical fiber 9, quartz glass tube 10, optical fiber connector 11 and optical isolator (ISO) 12, wherein:

[0044]The refrigerator 1 is welded in the shell of the light source by indium tin soldering process, and is used to control the temperature of the 980nm laser die 5 and the erbium-ytterbium co-do...

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Abstract

The invention discloses a miniature ErYb co-doped superfluorescent optical fiber light source. The miniature ErYb co-doped superfluorescent optical fiber light source comprises a refrigerator, a heat sink, a transition heat sink, a thermal resistor, a 980 nm laser tube core, a wedge-shaped lens, a double-lens coupling system, a high-reflectance film, an ErYb co-doped phosphate glass single mode fiber, a quartz glass tube, a fiber connector and an opto-isolator. According to the miniature ErYb co-doped superfluorescent optical fiber light source, the highly-doped ErYb co-doped phosphate fiber improves the absorbing gain of unit-length fiber, shortens the length of gain fiber and accordingly achieves miniaturization and integration of ASE (amplified spontaneous emission) broadband light sources.

Description

technical field [0001] The invention belongs to the technical field of semiconductors, and is a miniaturized erbium-ytterbium co-doped superfluorescence optical fiber light source which plays an important role in the fields of optical fiber communication and optical fiber sensing. Background technique [0002] Compared with the traditional broadband light source - Superluminescent Light Emitting Diode (SLD), Super Fluorescent Fiber Light Source (SFS) has excellent output performance, including high output optical power, low coherence of light source, output spectral linewidth and high temperature stability, etc. Therefore, it has become an important light source device in the field of optical fiber communication and optical fiber sensing, and it is necessary to carry out further research on it. [0003] In terms of wavelength division multiplexer (WDM) applications, SFS light sources mainly provide high-power, narrow-band, and highly stable optical signals to adapt to large-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S3/067H01S3/16H01S3/091H01S3/042
Inventor 谭满清杜峰焦健郭小峰郭文涛孙宁宁
Owner INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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