Description
Dielectric Mirrors – High Reflectivity & Laser Damage Resistance for Precision Laser Systems
Description:
Dielectric Mirrors (also known as interference mirrors) are constructed from multiple layers of thin dielectric films, which reflect light via constructive interference while transmitting unwanted wavelengths. They offer extremely high reflectivity (>99%) at specific target wavelengths and excellent laser-induced damage threshold (LIDT), making them ideal for high-power laser systems, fiber lasers, and precision optical instruments.
Materials:
Fused Silica: Preferred substrate for high-power laser applications due to ultra-low thermal expansion and high LIDT
BK7: Cost-effective substrate for lower-power laser and general optical systems Sapphire: High thermal conductivity and hardness for extreme environmental conditions
Highlights:
Customizable wavelength range (UV: 200–400nm, VIS: 400–700nm, NIR: 700–1700nm, MIR: 2–10µm)
Ultra-high reflectivity (>99.5% at target wavelength)
Low absorption and scatter, minimizing thermal load
High LIDT, suitable for nanosecond, picosecond, and femtosecond lasers
Custom angle of incidence (AOI) design (0°, 45°, 56°, etc.)
Key Specifications:
Diameter: 10mm – 300mm
Surface Quality: 20/10, 10/5
Surface Figure: λ/10 @ 633nm, λ/20 @ 633nm
Parallelism: ≤ 10 arcsec (standard), ≤ 5 arcsec (precision)
Coating Types:
Single-wavelength HR coating
Broadband HR coating
Polarizing beam splitter (PBS) coating
Non-polarizing beam splitter (NPBS) coating
Applications:
High-power fiber lasers & solid-state lasers
Laser amplifiers & mode-locked lasers
Optical parametric oscillators (OPOs)
Interferometers & laser metrology systems
Quantum computing & precision spectroscopy instruments
Customization:
We design and manufacture dielectric mirrors to your exact wavelength, AOI, and LIDT requirements. We also offer custom coating designs for specialized applications such as ultrafast lasers or extreme environmental conditions.
