The JDS Uniphase MV47L is a manual variable optical attenuator for single-mode fiber systems requiring precise optical power control. It employs graded neutral density filters with trimpot-style adjustment to deliver attenuation across the 1200 nm to 1700 nm window, with primary optimization at 1310 nm and 1550 nm for multichannel applications. The MV47L combines low insertion loss, minimal wavelength dependence, and low PDL to meet the demands of research, development, and production environments.
Technical Specifications
• Part Number: MV47L-CS-Z002
• Type: Manual Variable Optical Attenuator (VOA), single-mode fiber
• Operating Wavelength: 1200 nm to 1700 nm
• Optimized Wavelengths: 1310 nm and 1550 nm
• Attenuation Mechanism: Graded neutral density filters with trimpot-style adjustment
• Insertion Loss: Typically 1.5 dB
• Return Loss: Greater than 50 dB (optimized at 1310 nm)
• Resolution: Typically 0.02 dB
• Wavelength Dependence: Low
• Polarization Dependent Loss (PDL): Low
• Fiber Cable: SM-28e, OD 3 mm; SM Kevlar reinforced or 900 µm buffered fiber; standard pigtail length 1.5 m
• Connector Options: FC/APC or SC/UPC
• Dimensions: 37.8 × 16.6 × 23.4 mm (excluding connectors)
• Operating Temperature: −40 °C to 75 °C
• Storage Temperature: −40 °C to 75 °C
– Key Features
• High-resolution adjustment (0.02 dB typical) for accurate power control
• Optimized performance in 1310/1550 nm dual-window multichannel systems
• Low wavelength dependence and PDL ensure stable attenuation across spectral range
• Compact form factor for space-constrained installations
• Wide operating temperature range supports field and lab deployment
– Typical Applications
• In-line power control in optically amplified multichannel systems
• Receiver padding and transmitter power equalization
• Optical power equalization and channel balancing
• System testing and validation
– Compatibility & Integration
The MV47L integrates into single-mode fiber networks via FC/APC or SC/UPC connectors. Standard 1.5 m pigtail configuration enables flexible deployment in existing optical testbeds and production systems.
