BP1550-50 대역 통과 필터(CWL=1550nm, FWHM=50nm)

LiDAR (Automotive & Autonomous Systems)

• Why: 1550 nm is a popular wavelength for LiDAR because it is "eye-safe." The fluid in the human eye absorbs this wavelength before it reaches the retina, allowing systems to use higher power levels for longer range detection without risking eye damage.
• Function: The filter blocks sunlight and other ambient noise, ensuring the sensor only detects the returning laser pulse.

Recommended Light Sources

• 1550 nm Pulsed Laser Diode / Fiber Laser: High peak power handling allows for long-range detection while remaining "eye-safe," as the 1550 nm wavelength is absorbed by the eye's cornea and lens rather than damaging the retina.

Biomedical Imaging (OCT)

• Why: This wavelength offers deeper tissue penetration with reduced scattering compared to visible light.
• Function: Used in Optical Coherence Tomography (OCT) for high-resolution imaging of biological tissues.

Recommended Light Sources

• Swept-Source Laser (or Superluminescent Diode): These sources provide the broad bandwidth (or rapid wavelength tuning) essential for high-resolution depth profiling (coherence gating), allowing the system to fully exploit the 1550 nm window for deep tissue penetration where scattering is minimized.