Ruik's pump laser protector is one device, which used for blocking the reversed light from sigal, in order to protect the pump diode. Pump Laser Protector Features Applications Low Insertion Loss EDFA High Return Loss Pump Laser High Reliability & Stability Q-Switched Laser Specifications Parameters Values Pass Band Wavelength Range : 960~990nm, or Specified Max.Insertion Loss over Pass Band Wavelength: 0.7dB Blocked Band Wavelength Range: 1020~1100nm or 1500~1600nm, or Specified Min. Isolation at 23 (@Blocked Band Wavelength Range): 25dB Max. Polarization Dependent Loss at 23, only for PI : 0.15dB Min. Extinction Ratio at 23, only for PM: 20dB Min. Return Loss: 50dB Max. Power Handling (CW): 20W Max. Pulsed Power: kW 10 or Specified Max. Wavelength Thermal Stability: 0.003nm/ Max. Insertion Loss Thermal Stability; 0.005dB/ Operating Temperature ï¼?0~+70 Storage Temperature ; -40~+85 With connectors, the handing power will be only 1W, IL is 0.3dB higher, RL is 5dB lower, ER is 2dB lower. RUIK-Tech Communication is a manufacturer and supplier of Optical Passive Components with ISO9001:2015 certified. We design advanced and cost-effective passive components for various industries which include Fiber Laser, Sensing Applications, CATV, Telecommunication, Medical Systems, Gyroscope, etc. Our main products include High Power Components up to 100W (20kW), Polarization Maintaining (PM) and Single-mode Fiber Components with ranging from 780nm to 2000nm. We also provide Customized components to our customers. High power Optical Fiber Components: -Optical Fiber Isolator, up 100W; -Free Space Isolator, up to 100W; -Optical Circulator, up to 30W; -Pump Laser Protector; -Band Pass Filter; -Nx1 Pump Combiner; -Cladding Power Stripper; -Mode Field Adapter; -(N+1)x1 Pump & Signal Combiner, 200W/port; Polarization Maintaining Fiber Components: -In Line Polarizer/Depolarizer; -In Line Faraday Isolator; -Optical Circulator; -Fused WDM / Coupler; -Filter WDM / Coupler; -Fiber DWDM -Fiber Mirror; -Faraday Rotator; -Fiber Patch cord / Jumper; -PLC Splitter Module; -Tap / WDM / Isolator Hybrid; Manual Variable Optical Attenuator; -1x2 Polarization Beam Splitter / Combiner (PBS/C) -1x2 Isolator & Polarization Beam Splitter / Combiner (IPBS/C)