The Working Principle and Performance Index of Fiber Optic Attenuator
Fiber attenuators are passive devices used to reduce the power of a signal to a certain level. It is widely used in the detection and debugging of optical fiber communication systems, equipment, and instruments in the process of research, development, and production.
In optical communication, when the power of the optical signal is too high, the optical receiver will be overloaded and the signal will be distorted, so it is necessary to use a fiber attenuator to reduce the power.
Another situation is that in an optical fiber system with multiple wavelength channels, the optical signal power of each channel needs to be approximately the same, so an optical fiber attenuator should be used to equalize the power of each channel.
Ⅰ. The working principle of the optical fiber attenuator
1. Air isolation technology
The transmission of light in the optical fiber abides by the law of total reflection, keeping the intensity relatively stable. Once light absconds from the fiber and transmits through the air, light will then get attenuated.
Flange-type fixed attenuators and adjustable attenuators are made possible based on this principle.
2. Displacement dislocation technology
In this method, the cores of the two optical fibers are slightly shifted and displaced, so as to achieve the effect of power loss.
By using ordinary pigtails, the cores of the two pigtails are spliced with a fusion splicer in the case of misalignment, so that eccentric loss occurs during the transmission process.
3. Attenuating fiber technology
According to the absorption effect of metal ions on light, an attenuating fiber doped with metal ions was developed.
The attenuating fiber is inserted into the ceramic ferrule, and after special processing, it can be made into a fixed attenuator of male and female types.
4. Absorption glass technology
Optically polished neutral absorbing glass sheets can also be used in the fabrication of Fiber Optic Attenuators.
Using the absorption characteristics of substances to light, a sheet or strip of neutral dark glass is made and placed on the light path, the light intensity can be attenuated.
Ⅱ. The performance of fiber optic attenuator
1. Insertion loss （IL）
At the max loss point, the ratio of the optical power （Pi） at the input end to the optical power （Po） at the output end.
2. Attenuation
The reduction value of the optical power of the working wavelength at the specified output port compared to the total input optical power.
3. Return loss （RL）
The ratio of the optical energy incident into the optical fiber attenuator to the optical energy reflected along the incident optical path in the attenuator.
4. PDL polarization-dependent loss
The ratio of the maximum and minimum transmission of a fiber attenuator for all polarization states.
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QQGQ8.E183223 - Power Supplies, Information Technology Equipment Including Electrical Business Equipment Certified for Canada - Component
型号- HSP-150-3.8,NES-25-5,X-350-48H,RSP-100-3.3,EPS-65-36Z,S-150-7.5,ADD-55B,DRP-480-24,PS-45-27,PS-45-24,RD-125-4812,S-320-7.5,ADD-55A,NEL-200-5,NSD10-48D5,SP-200-5DB,HRPX-600-5,RCP-2000-12,RSD-300B-48AL,S-240-5,S-320-19AS,DRT-960-48,LPS-100-48,EPS-65-12Z,HRPX-600-3.3,EPS-45S-3.3,NET-50D,RQ-85C,USP-225-12,USP-500-12,HRP-150-12,NET-50C,RQ-85D,USP-225-15,USP-500-15,HRP-150-15,SP-150-13.5,RD-125-4824,IRM-45-12ST,PSC-35A,PSC-35B,RPT-6003,SP-200-24DB,QP-200F,LRS-200-5,NET-50B,QP-200D,NET-50A,RCP-2000-24,RQ-85B,USP-350-48,LRS-75-12,PPS-125-48,LRS-75-15,DRC-40B,EPP-200-X,DRC-40A,PS-65-7.5,Q-250DCA,USP-225-24,USP-500-24,HRP-150-24,SCP-35-24,USP-350-5,SP-300-48,RS-75-15,RS-75-12,NET-75B,SP-150-5,USP-225-28,TS-1000-224GPT,IPC-300A,PPT-125C,S-150-13.5,SP-200-7.5DB,LRS-75-24,PPS-125-15,PPT-125D,PPS-125-12,QP-375-24BP,DRP-480-48,NES-150-3.3,SE-1000-15,PPT-125A,PPT-125B,SE-1000-12,PS-45-12,HRP-150-36,PS-45-15,DRT-240-24,RCP-2000-48,D-60B,SP-200-48DB,D-60A,SE-100-7.5,USP-350-24,NES-25-48,IPC-300B,LRS-75-36,PPT-100B,PPS-125-24,PPT-100C,IRM-05-X,PPT-100D,IRM-45-5ST,RS-50-5,PPS-125-27,SE-1000-24,HRP-150-48,SP-300-24,USP-350-53AD,HSP-200-4.2,PSP-300-13.5,RD-65A,SP-300-27,PSP-600-13.5,RD-65B,NES-25-12,DR-30-24,SP-200-15DB,NES-25-15,NEL-300-5,RPS-60-5,LRS-75-48,PS-25-5,DRP-3200-48CAN,RS-100-5,PSP-500-5Z,PT-65DRS,LRS-350-24,UHP-350R-48,ERP-350-12,SP-200-15,SCP-35-12,UHP-350-4.2,SP-200-12,RHP-1UY-A,SP-200-27,DRT-240-48,SP-300-36,NES-25-24,PSD-15C-12,HEP-185-12Y,RSP-1000-48,DRC-60B,DR-30-15,HEP-185-36Y,DR-30-12,DRC-60A,RSP-320-13.5,LRS-350-15,LRS-350-12,UHP-350R-36,IRM-05-5,ERP-350-24,UHP-200R-5,SP-200-24,PSP-600-48,PD-85SP,IRM-20-3.3,HEP-185-15Y,PS-65-48,LRS-350-48,ERP-350-36,NES-35-48,RPS-60-3.3,UHP-200A-5,SP-300-12,SP-150-13.5DB,SP-300-15,PPS-200-5,EPP-150-30PE,PM-15-3.3,SP-500-53AD,EPP-300-12CB,LRS-350-36,ERP-350-48,SP-200-48,LPP-150-3.3,HLG-240H-24SI,PS-25-15,DR-30-5,PS-25-12,HRPG-1000-48,RD-85A,RSP-1000-15,RD-85B,RSP-1000-12,PQ-100DTR,SDR-240-55,NFM-15-24,MHB150-48S33,HRPX-600-7.5,EPP-400-48KS,ASP-150-12,IRM-10-5,S-320-13.5,LPP-100-27,ASP-150-15,USP-150-X,USP-350-3.3,PD-6506AS,RSD-100C-12,ASP-150-20,RSP-200-13.5,EPS-45-7.5Z,EPS-45S-7.5,EPS-X-Y,SP-150-12DB,RHP-8K1UY-X,NSD15-12D5,PS-35-48,PD-2503,SP-150-27,DRP-3200-24CAN,PSP-500-15Z,X-350-15,RKP-6K1UY-X,SP-150-24,ASP-150-24,X-350-12,DRH-120-48,USP-500-5,X-350-5,IRM-45-5,ASP-150-27,LPP-100-12,LPP-150-5,SKMW06F-15,SKMW06F-12,TP-150A,TP-150B,NET-35C,PSC-160X-C,TP-150C,NET-35B,TP-150D,DR-15-15,HRPG-1000-24,NET-35D,PD-2505,DR-15-12,SP-150-3.3DB,PD-2512,PS-45-5,X-350-27,NET-35A,NES-150-7.5,RSP-1600-X1CAN,X-350-24,MHB150-48S12,UHP-350R-24,DR-60-24,MHB150-48S15,LPP-100-24,PS-25-27,PS-25-24,SKMW06F-24,RSP-1000-27,HRPG-1000-15,HRPG-1000-12,PD-2515,HRPX-600-48,RSP-1000-24,DR-60-15,SP-150-48,UHP-350-12,HDR-100-24N,HDR-100-48,NFM-15-12,UHP-350-15,NFM-15-15,SDR-240-48,S-150-9 Y2VEL,RSP-100-7.5,UHP-350R-15,X-350-36,RSP-2000-48RS,DR-60-12,MHB150-48S24,UHP-350R-12,LPP-100-15,MHB150-48S25,CLG-150-30Y,HDR-100-48N,LRS-350-3.3,IRM-60-5ST,USP-500-48,RSP-1500-12,RSP-1500-15,USP-350-12,HRPX-600-36,USP-350-15,HDR-100-15,PS-35-15,HDR-100-12,X-350-48,PS-35-12,LRS-200-3.3,S-240-7.5,HDR-15-5,RSP-150-7.5,HRP-600-24GR,NES-50-48,SKMW06F-05,RD-125-2448,SKMW06F-03,DR-15-24,RSP-1500-24,RS-75-24,RSP-150-13.5,SKMW06F-09,HRPX-600-24,LRS-100-5,HDR-100-24,CLG-150-36Y,RSP-1500-27,CLG-150-12Y,HRPX-200-3.3,MP1K0-2H#2K2K-4,PS-45-48,QP-150F,HRPX-600-12,QP-150C,HDP-190,QP-150B,RD-125-2412,HRP-150-5,RCP-3K1UZ48Y,X-350-5H,QP-150D,HRPX-600-15,SP-150-15,ADS-15512SM,RQ-125B,S-100F-7.5,RQ-125C,RQ-125D,SP-150-12,NES-50-24,LPP-100-48,EPS-65-15Z,IRM-05-3.3,NES-150-12DP,RS-75-48,RPS-60-12G,PSP-500-12Z,SP-100-13.5,IRM-01-XY,LHP-200-4.6,PS-35-24,SPV-150-48,NES-50-12,LHP-200-4.2,DRH-120-24,HEP-240-24Z,ASP-150-48,NES-50-15,HEP-240-48Z,LRS-100-3.3,PSC-35A-C,LRS-150-F-5,RSP-1500-5,RID-50A,RCP-1000-48,RSP-500-48,HEP-600-24,PW-120X-27PZZ,RID-50B,SP-150-3.3,SP-320-5,UHP-350R-4.2,QP-375-5AP,RS-100-24,PS-65-5,RSP-100-24,RSP-100-27,X-350-7.5,SP-320-3.3,IRM-60-12ST,SP-480-24,PS-45-24MI,HEP-600-20,S-320-15,HEP-600-36,DRT-480-36PE,QP100-3D,IRM-05-24,HEP-100-54Y,UR24-6,S-320-12,RS-100-15,ADS-15548,RS-100-12,HLG-185H-12AL,MDR-60-48,RSP-75-5,SP-750-48OCE,RSP-100-15,SP-480-15,SP-480-12,HRP-150-7.5,HEP-600-30,RSP-100-12,LPS-50-5,PSP-300-27,HRPX-300-36,AD-55B,S-240-24ID,PSP-300-24,UHP-200R-12,IRM-05-15,AD-55A,IRM-05-12,PB-300P-24,UHP-500R-48,RS-100-48,IRM-10-3.3,NSD10-48S9,CLG-150-15Y,IRM-30-15,LPP-100-3.3,NSD10-48S5,RT-50A,IRM-30-12,RT-50D,PD-65B,RSP-200-3.3,PD-65A,RT-50B,NSD10-48S3,RT-50C,PSP-300-12,EPS-15-15,HEP-600-12,HSP-300-2.8,HRPX-300-48,RSD-300B-48,HEP-600-15,RS-35-5,RSP-100-13.5,UHP-500-5,UHP-500R-36,PB-300P-12,S-40-5,SP-100-5,EPS-15-12,Q-220MTI,ADD-155C,ADD-155A,HLG-600H-20A,ADD-155B,HLG-600H-20B,SP-480-3.3,IRM-30-24,PPT-125AA,ADS-15524,HEP-320-24Y,MDR-60-24,HEP-320-48Y,PB-300N-24,S-320-48,EPS-15-27,HRPX-300-15,UHP-200-4.2,RPS-60-15AG,UHP-500R-24,NSD15-48D5,HRPX-300-12,UHP-200R-3.3,UHP-200-36,EPS-15-24,UHP-350-24,RS-35-16,RS-35-15,RS-35-12,RSP-2
太辰光新型光纤超声传感器，用于捕捉局部放电事件中产生的超声波信号，探测距离可长达1.0m
太辰光始终重视核心技术研究和技术体系建设，着眼用户需求进行技术融合和产品应用开发，不断实现核心技术创新和产品技术突破，其新推出的光纤超声传感器是一种采用法布里-珀罗（F-P）谐振腔作为敏感单元的新型光纤器件，可用于捕捉局部放电事件中产生的超声波（频率≥20 kHz 的声波）信号。
产品 发布时间 : 2024-10-26
太辰光推出的保偏光纤连接器，具有高消光比≥23dB、高pitch精度、偏转角≤±3°的优势
保偏光纤连接器作为一种特殊类型的连接器，广泛应用于光纤传感、干涉测量、相干光传输及长距离双向光传输系统中。相比于常见的单芯保偏连接器，多芯保偏连接器可以传输多个保偏光信号，同时保持其偏振方向不变。
原厂动态 发布时间 : 2023-04-14
Positioning of Personnel and Equipment in Power Plants: Improving Safety and Management Efficiency
Ensuring the safety of personnel and equipment, as well as improving management efficiency, is crucial in the important energy production site of power plants. The application of personnel and equipment positioning technology has brought a new management mode and security guarantee to power plants.
应用方案 发布时间 : 2024-10-09
电子商城
授权代理品牌：集成电路
授权代理品牌：分立元件
授权代理品牌：接插件及结构件
授权代理品牌：部件、组件及配件
授权代理品牌：电源及模块
授权代理品牌：电子材料
授权代理品牌：仪器仪表及测试配组件
授权代理品牌：电工工具及材料
授权代理品牌：机械电子元件
授权代理品牌：加工与定制
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