The Santec OTF (Optical Tunable Filter) is a precision optical instrument for wavelength selection and filtering within optical systems. Built on Santec’s proprietary Linear Sliding Technology, it delivers continuous, precise wavelength tuning with stable optical performance across the entire tuning range. The design ensures the optical beam passes perpendicularly through the filter element, minimizing variations in Polarization Dependent Loss (PDL), bandwidth, and insertion loss. Available in single-stage and multi-stage configurations, the OTF series supports flexible architecture including independent sliders, cascaded filters for enhanced isolation, and integrated variable attenuators.
Technical Specifications
• Tuning Technology: Linear Sliding Technology
• Wavelength Tuning: Continuous and precise
• Optical Properties: Wavelength-independent bandwidth, insertion loss, and PDL
• Filter Isolation: Cascadable configurations with minimal insertion loss increase
• Filter Structure: Single-stage and multi-stage options available
-# Santec OTF-920
• Slider Configuration: Two independent optical sliders, each providing 40 nm tuning range
• Total Tuning Range: 80 nm (both sliders configured with filter elements)
• Slider Options: Each slider supports filter element or variable attenuator configuration
• Bandwidth Tuning: Achieved by summing spectral responses; example: two 1.2 nm filters set at 0.8 nm intervals yield 2.0 nm bandwidth
• Peak Search Function: Automatic wavelength detection via 0.001 nm step sweep
• Control: Automatic Power Control (APC) mode support
• Interfaces: GPIB and RS-232C
-# Santec OTF-930
• Polarization: Polarization independent
• Tuning Range: 80 nm
• Wavelength Range: 1530–1610 nm
• Wavelength Resolution: 0.01 nm
• Wavelength Accuracy: ± 0.2 nm
• Wavelength Repeatability: ± 0.1 nm
– Key Features
• Automatic peak power search with 0.001 nm resolution
• Configurable dual-slider architecture for independent wavelength and attenuation control
• Bandwidth synthesis via multi-filter summation
• Cascadable design for isolation enhancement
– Typical Applications
• ASE noise filtering and signal-to-noise ratio improvement
• Individual wavelength channel selection in DWDM systems
• Tunable incoherent light source operation with broadband sources
• Optical communications, spectroscopy, and sensing
• Production and R&D environments
– Compatibility & Integration
• GPIB and RS-232C command interfaces
• Automatic Power Control mode for stable output management
• Compatible with both single and cascaded filter topologies
