Ruik's Manual Variable Optical Attenuator is used for reducing the light power, by blocking the light with a screw. PM Manual Variable Optical Attenuator Features Applications High Precision Optical Communication Systems Test Wide Attenuation Range Optics Laboratory Low Insertion Loss Specifications Parameter Value Center Wavelength 1310nm 1550nm 1064nm Operating Wavelength Range±40nm ±40nm ±20nm Attenuation Range 0.6~60dB 0.6~60dB 0.6~60dB Max. Insertion Loss 0.6dB 0.6dB 0.6 dB Min. Return Loss 50dB Adjustment Precision 0.02dB Min. Extinction Ratio at 23 20dB Max. Power Handling 500mW Operating Temperature 0 ~ +70 Storage Temperature -40~+85 Package Dimensions 26x18x8mm For device with connector, IL is 0.3dB higher, RL is 5dB lower, ER is 2dB lower. The default connector key is aligned to slow axis. Company introduction: 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 for our customers. High power Optical Fiber Components: -Optical Fiber Isolator, up to 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 Patchcord / 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)