1535nm Erbium Doped Laser Glass Erbium Ytterbium Co-doped Product Description
Erbium-doped (Er) glass is a specialized laser glass utilizing erbium ions (Er³⁺) as the active ions, operating within the 1.5 μm “eye-safe” wavelength range. As a manufacturer of Er-doped glass, Asin Optics precisely controls the co-doping ratios of rare-earth ions—such as Er³⁺ and Yb³⁺—to produce components featuring high optical homogeneity, ultra-long fluorescence lifetimes, and excellent laser performance; we also offer customization options for doping concentrations, dimensions, and coating specifications. This 1535 nm erbium-doped laser glass is suitable for applications such as laser ranging and medical/aesthetic equipment.
1535nm Erbium Doped Laser Glass | Erbium Ytterbium Co-doped Key Features
- Operating at the 1535 nm eye-safe wavelength, it significantly minimizes the risk of retinal damage, making it suitable for use in open environments.
- The Erbium-Ytterbium co-doped glass features optical homogeneity exceeding λ/10 (@633 nm) and minimal wavefront distortion; end-face parallelism is better than 10 arcseconds, and surface quality reaches 20/10 (S/D), ensuring high-quality beam output.
Why Choose Us For Your
- We operate a comprehensive production line covering processes from polishing and cutting to coating.
- Complete inspection reports are provided for every batch.
- We offer flexible customization capabilities, providing coated optics in various sizes and diameters—including options for uncoated, anti-reflective (AR), high-reflectivity (HR), and high-reflectivity/anti-reflective (HR/AR) coatings.
- We can provide customized doping concentrations; the Erbium-ion doping level is adjustable within the 0.5–3.0 wt% range to enhance pump absorption efficiency and lower the laser threshold.
Custom Capability Of 1535nm Erbium Doped Laser Glass Erbium Ytterbium Co-doped
1535nm Erbium Doped Laser Glass Erbium Ytterbium Co-doped Applications
Eye-Safe Laser Rangefinders
The 1535 nm wavelength falls within the eye-safe range; light at this wavelength is absorbed by the anterior structures of the eye—such as the cornea and aqueous humor—preventing it from focusing on the retina and creating a hazardous focal spot. Erbium-ytterbium co-doped laser glass, fabricated into rods or slabs, serves as the solid-state laser gain medium. This enables the generation of giant pulses with pulse widths as narrow as a few nanoseconds and energies in the millijoule range; these pulses are directed at a detector to calculate distance.
Medical & Aesthetic Lasers
1535 nm laser light penetrates the epidermis, making it suitable for treating individuals with darker skin tones. It triggers fibroblast activation and immediate collagen contraction, subsequently initiating long-term collagen neogenesis and remodeling.
LiDAR Systems
In applications such as autonomous driving and intelligent sensing, LiDAR systems must emit laser beams into open environments. The 1535 nm wavelength is compatible with detectors, enabling effective detection ranges of 250 meters—or even over 400 meters—while ensuring safety, and allowing for the precise identification of small targets such as pedestrians and road debris.


