445nm Monolithic Collimator

Product Details Simultaneously Collimate Light from Laser Diode Fast and Slow Axes Circularize Elliptical Output from Common Blue Laser Diodes Ideal for Light Collimation of Single Emitters in the Blue Spectrum Monolithic Collimators feature a solid glass construction with two orthogonal cylindrical surfaces. The different focal lengths, optimized for numerical apertures of 0.5 and 0.2, simultaneously collimate light from the fast and slow axes of common single emitters. These collimators are capable of producing a symmetrical beam with a nearly round far-field profile. Monolithic Collimators are AR coated to provide high transmission across visible wavelengths and are ideal for beam shaping or laser diode collimation, particularly of blue TO-can diodes with wavelengths of 405nm, 445nm, 447nm, and 450nm. Specifications General Type: Beam Shaping Lens Physical & Mechanical Properties Dimensions (mm): 2.50 x 2.50 ±0.05 Thickness (mm): 5.78 ±0.05 Clear Aperture CA (mm): 1.90 x 1.90 Optical Properties Effective Focal Length EFL (mm): 5.02 Back Focal Length BFL (mm): 1.19 Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More S-BSL7 Numerical Aperture (NA) Range: 0.50 (Fast Axis) 0.20 (Slow Axis) Index of Refraction (n d ): 1.526 Coating: BBAR (400 – 700nm) Wavelength Range (nm): 400 – 700 Design Wavelength DWL (nm): 445 Divergence 1/e 2 (mrad): 1.6 (Fast Axis, Typical) 7.0 (Slow Axis, Typical) Regulatory Compliance Certificate of Conformance: View ×