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Laser safety protection device and method applied to distributed Raman fiber amplifier

A safety protection device and Raman optical fiber technology, which is applied in electromagnetic wave transmission systems, electrical components, transmission systems, etc., can solve problems such as strong laser leakage and safety hazards

Inactive Publication Date: 2014-10-15
O NET COMM (SHENZHEN) LTD
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Problems solved by technology

Since the optical fiber transmission distance of the communication system is generally more than 100km, and the pump light P 1 It will exist in the entire transmission fiber 110 of the system. Once the transmission fiber 110 is damaged or broken somewhere in this ultra-long-distance transmission, it will cause leakage of strong laser light and cause great safety hazards.

Method used

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  • Laser safety protection device and method applied to distributed Raman fiber amplifier
  • Laser safety protection device and method applied to distributed Raman fiber amplifier
  • Laser safety protection device and method applied to distributed Raman fiber amplifier

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Embodiment Construction

[0023] The laser safety protection device and method applied in the distributed Raman fiber amplifier of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0024] Please also refer to figure 2 . figure 2 It is a structural schematic diagram of the laser safety protection device applied in the distributed Raman fiber amplifier of the present invention. The laser safety protection device 500 consists of five parts, namely pump laser monitoring device 510 , reverse pump light detection device 520 , OSC monitoring signal detection device 530 , out-of-band ASE detection device 540 and in-band signal detection device 550 .

[0025] Please also refer to image 3 . image 3 It is a structural diagram of the pump laser monitoring device 510 and the reverse pump light detection device 520 . Wherein, the pump laser monitoring device 510 includes a power detector 5140, the power detector 5140 is c...

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Abstract

The invention provides a laser safety protection device and method applied to a distributed Raman fiber amplifier. The laser safety protection device comprises a pump laser monitoring device, a reverse pump light detection device, an OSC monitor signal detection device, an out-band ASE detection device and an in-band signal detection device. A power detector, a reflection power detector, an OSC detector, an ASE band detector and a signal light detector are connected to a centre microprocessor of the distributed Raman fiber amplifier, thereby reducing the potential safety hazard of the strong light power transmitted by the laser in the distributed Raman fiber amplifier on communication system operation and the maintenance personnel.

Description

technical field [0001] The invention relates to the field of safety protection of optical amplifiers in the field of optical fiber communication, in particular to a laser safety protection device and method applied in distributed Raman fiber amplifiers. Background technique [0002] Laser has the characteristics of good monochromaticity, good coherence, good directionality and high brightness, and it is widely used in communication systems. The laser has good directionality, small divergence angle, and highly concentrated energy in space. Therefore, the energy intensity in the output direction of the laser is particularly high, and the radiation to the human body, especially the eyes, is more harmful. The laser light sources widely used in modern optical communication systems generally distribute light wavelengths around 1310nm and 1550nm outside the visible light range, and the naked eye cannot directly see the beam, so the possibility of causing damage to the human eye is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/032H04B10/071
Inventor 孔猛黄必昌虞爱华
Owner O NET COMM (SHENZHEN) LTD
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