Raman filter

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Raman Filter

Features of Raman Filter:

High Transmission to Detect the Weakest Signals

Ultra-steep Edge to Measure Even the Smallest Raman Shifts

Deep Blocking for Maximum Laser Rejection

Hard Coatings and No Adhesives for Long Filter Life

All Dielectric Coated with IBS Technology

Specifications of Raman Filter
Edge Steepness: 0.5% of laser wavelength (typical)
Transition Width: <2% of laser wavelength (from T=50% to OD6)	Lase Line Blocking: >6.0 Optical Density
Laser Damage Threshold: 1J/cm2@532nmwith 10ns pulse width	Clear Aperture: >80%
Substrate Material: Fused silica or NBK7 or equivalent	Passband Transmission: >90%
Mounting: Black-anodized aluminum ring	Surface Quality: 60-40
Diameter: Ф25.0mm	Diameter Tolerance: +0/-0.1mm
Thickness: 3.5mm	Thickness Tolerance: ±0.1mm
Angle of Incidence: 0.0±2.0°	Cone Half Angle: <5°
AngleTuningRange: -0.3% of laser Wavelength	Beam Deviation: <30 arc sec.
Temperature Dependence: <5ppm/°C	Transmitted Wavefront: 1/4lRMS@633nm (per inch)
Operating Temperature: -45°C- 85°C	Environmental Durability: MIL-STD-810F
Physical Durability: MIL-C-48497A

Raman Filter