Custom BK7 Glass Dove Prism For Optical Alignment Systems

Custom BK7 Glass Dove Prism For Optical Alignment Systems

Material‌
1.High-quality BK7 optical glass‌: A standard crown glass with excellent transmission (350–2000 nm), low bubble/inclusion content, and high homogeneity.
2.Optional coatings‌: Anti-reflective (AR) coatings (e.g., 532 nm or 1064 nm laser lines) to minimize surface reflections and enhance durability.

Properties‌
1.Precision polishing‌: λ/10 surface flatness and <5 arcsec angular tolerance for accurate beam control.
2.Thermal stability‌: Low coefficient of thermal expansion (CTE: ~7.1×10⁻⁶/K) ensures performance stability in varying temperatures.
3.High laser damage threshold‌: Suitable for high-power laser systems (e.g., LIDT >10 J/cm² at 1064 nm, 10 ns pulses).

Function‌
1.Image rotation‌: Rotates an image by 180° without parity change, critical for aligning inverted optical paths.
2.Beam displacement‌: Shifts beam position laterally while maintaining direction, useful for interferometry and laser alignment.
3.Polarization preservation‌: Minimal birefringence (<5 nm/cm) for coherent laser applications.

Applications‌
1.Laser systems‌: Alignment of CO₂/UV lasers in industrial cutting and medical devices.
2.Interferometry‌: Path correction in Michelson or Mach-Zehnder setups.
3.Imaging systems‌: Image inversion in telescopes, microscopes, and endoscopic tools.
4.Defense & aerospace‌: Beam steering in LIDAR and targeting systems.