The Santec OTF-20M/30M is a modular optical fiber test platform engineered for precise measurement and analysis of optical components and systems. The OTF-30M miniature tunable filter module employs thin-film filter technology with selectable single-stage (S1) or dual-stage (S2) configurations. Manual knob tuning delivers 30 nm continuous wavelength adjustment, supporting bandwidth selections from 0.003 nm to 0.24 nm across six types. Configurable center wavelengths accommodate 1550 nm and other specifications, making the platform adaptable for research, development, manufacturing, and quality control applications in photonics.
Technical Specifications
Tuning & Wavelength Control
• Tuning range: 30 nm continuous
• Center wavelength: Configurable (common setting 1550 nm)
• Tuning method: Manual knob control
• Bandwidth types: 003, 004, 006, 008, 012, 024
• Bandwidth range: 0.003 nm to 0.24 nm (dependent on type selection)
Optical Performance
• Filter structure: Thin-film based, S1 or S2 configurations
• Insertion loss: Varies by fiber type; SMF baseline with ~0.5 dB increase for PMF/DSF
• Polarization dependent loss (PDL): Excellent across entire tuning range
Physical Specifications
• Height: 8 mm
• Width: 34 mm
• Depth: 66 mm
• Fiber jacket option: 0.9 mm (tight buffer)
– Key Features
• Multi-stage filter configurations enable bandwidth optimization for specific measurement requirements
• Fine bandwidth selectivity supports component and system characterization across telecommunications bands
• Compact form factor integrates into modular test platforms
• Excellent PDL performance ensures polarization-independent measurements
– Typical Applications
• Optical component characterization and spectral analysis
• Manufacturing process control in photonics production
• Wavelength-selective testing and validation
• Research and development of fiber-optic systems
– Compatibility & Integration
The OTF-30M module integrates into the OTF platform architecture, supporting customized measurement configurations through plug-in module design. Tight-buffer fiber jacket option (0.9 mm) accommodates standard fiber handling practices in laboratory and production environments.















