LP1580 Longpass Filter (T>95%@1590-2500nm,OD3@200-1540nm)

Professional NIR Telecommunications Longpass Filter - LP1580

Optimize your near-infrared optical systems with our LP1580 Longpass Filter, expertly engineered to provide exceptional transmission in the extended NIR range (1590-2500nm) while effectively blocking shorter wavelengths (200-1540nm) for superior spectral selectivity in telecommunications and sensing applications.

Key Features:

• High NIR Transmission: >95% transmission from 1590-2500nm
• Broadband Blocking: OD3 (>99.9% blocking) from 200-1540nm
• Sharp Transition: Clean edge at ~1580nm cutoff
• Extended NIR Coverage: Optimized for long-wavelength NIR applications
• Telecommunications Grade: Perfect for fiber optic systems
• Consistent Performance: Uniform transmission across the aperture

Applications:

• Fiber optic telecommunications (L-band and beyond)
• Extended wavelength division multiplexing (EWDM)
• Raman amplifier systems
• Near-infrared spectroscopy and sensing
• Long-wavelength laser characterization
• Thermal imaging and detection
• NIR instrumentation and analysis
• Research-grade telecommunications equipment

Technical Specifications:

• Substrate: Premium optical glass optimized for extended NIR transmission
• Coating: Advanced multi-layer interference coating
• Passband: 1590-2500nm with >95% transmission
• Blocking: 200-1540nm with OD3 rejection
• Edge steepness: Sharp transition at ~1580nm
• Surface quality: Precision polished for minimal light scatter
• Durability: Scratch and humidity resistant coating

Perfect for demanding near-infrared applications requiring extended wavelength coverage and effective shorter wavelength blocking. The LP1580 provides outstanding performance for telecommunications L-band systems, extended NIR spectroscopy, and long-wavelength laser applications where clean transmission beyond 1590nm is essential.