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Mixing device for erbium-doped fiber amplifier

An erbium-doped fiber and amplifier technology, which is applied to the coupling of optical waveguides and other directions, can solve the problems of high cost, complex production process and large size, and achieve the effects of improving performance, reducing cost and simplifying production process.

Inactive Publication Date: 2018-11-16
WUHAN TELECOMM DEVICES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The embodiment of the present application provides a hybrid device for erbium-doped fiber amplifiers, which solves the problems of large size, complicated production process and high cost of erbium-doped fiber amplifiers in the prior art

Method used

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  • Mixing device for erbium-doped fiber amplifier
  • Mixing device for erbium-doped fiber amplifier
  • Mixing device for erbium-doped fiber amplifier

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Embodiment 1 provides a hybrid device for erbium-doped fiber amplifiers, such as figure 2 , image 3 As shown, it includes a tube shell 100, a tube cover 150, a double-fiber collimator 210, a single-fiber collimator 220, an optical filter 310, a beam splitter 320, a reflector 330, a first transition block 400, and a pump laser assembly 500 , a first collimating lens 600 , a grating 700 , an isolator 800 , and a photodetector 900 .

[0042] The beam splitter 320, the reflector 330, the pump laser assembly 500, the first collimating lens 600, the grating 700, the isolator 800, and the photodetector 900 are all assembled in the On the first transition block 400 , the first transition block 400 is assembled in the tube shell 100 . The single-fiber collimator 220 and the double-fiber collimator 210 are respectively fixedly connected to the tube housing 100 . The filter 310 is glued on the double fiber collimator 210 . Preferably, the spectroscopic sheet 320 and the refl...

Embodiment 2

[0050] On the basis of the first embodiment, a thermistor 420 is added to the first transition block 400 to obtain the second embodiment, and the temperature inside the tube shell 100 can be monitored through the thermistor 420 . The position of the thermistor 420 described in the second embodiment can also refer to the third embodiment Figure 7 .

Embodiment 3

[0052] On the basis of the first embodiment, a refrigerator 410 and a thermistor 420 are added in the tube shell 100 to obtain the third embodiment. Wherein, the refrigerator 410 is assembled at the lower part of the first transition block 400 and is located between the first transition block 400 and the tube shell 100; the thermistor 420 is assembled at the first transition block 400 On block 400, the third embodiment can perform temperature control through the refrigerator 410 and the thermistor 420, such as Figure 7 and Figure 8 shown.

[0053] In summary, the hybrid device used in the erbium-doped fiber amplifier provided by the present invention has the following core features:

[0054] 1. The device integrates multiple discrete components;

[0055] 2. The device is hermetically sealed, and the tail pipe port is sealed through the light window, and the tube shell is sealed through the tube cover;

[0056] 3. The device can realize the following functions: optical se...

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Abstract

The invention belongs to the technical field of optical fiber communication, and discloses a mixing device for an erbium-doped fiber amplifier. The mixing device comprises a single-fiber collimator, adouble-fiber collimator, an optical filter, a light splitter, a photoelectric detector, an isolator, a reflector, a pumped laser assembly, a first collimating lens, a grating, a first transition block, a shell and a tube cover, the light splitter, the photoelectric detector, the isolator, the reflector, the pumped laser assembly, the first collimating lens and the grating are all assembled on thefirst transition block, the first transition block is assembled in the shell, the single-fiber collimator and the double-fiber collimator are separately and fixedly connected with the shell, and theoptical fiber is bonded on the double-fiber collimator. According to the mixing device, problems of large dimension, complicated production process and high cost of the erbium-doped fiber amplifier inthe prior art are solved.

Description

technical field [0001] The invention relates to the technical field of optical fiber communication, in particular to a hybrid device for an erbium-doped optical fiber amplifier. Background technique [0002] In the current optical fiber communication system, Erbium-doped Optical Fiber Amplifier (EDFA for short) is a key component for long-distance communication. It is used in fields such as long-distance optical fiber communication, high-speed communication, and optical fiber access to CATV (Community Antenna Television, CATV for short). [0003] EDFA is mainly composed of five parts: erbium-doped fiber (EDF), optical coupler (WDM), optical isolator (ISO), optical filter (Optical Filter), and pump source (Pump). [0004] like figure 1 The input signal light 010 is separated by the filter 011 to separate the channel monitoring light 012, and the signal light passes through the optical splitter 013 to split a small part of light and connect to the photodetector 014 to monito...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/42
Inventor 卜勤练吕妮娜李建
Owner WUHAN TELECOMM DEVICES