Cat No:OWG-0001
Several areas on the parallel lens surface are fabricated with gratings, which are essentially diffraction gratings. Light is coupled into the lens through these gratings and then propagates inside the lens via total internal reflection. Upon encountering the output grating, the light is diffracted out, thus deflecting and transmitting the light, ultimately delivering the image to the human eye.
| Application | Etched gratings, etched slanted gratings, silicon wet-etched slanted gratings |
| Features | Integrated waveguide structure enabling compact and stable optical designs High wavelength selectivity and spectral precision Low insertion loss with excellent channel uniformity Compatible with planar photonic and integrated optical systems |
| Operating Wavelength Range | 400–700 nm (visible) 800–1600 nm (NIR / telecom band) |
| Grating Period / Pitch | 200–800 nm |
| Waveguide Material | Silicon (Si) Silicon Nitride (Si₃N₄) Silica (SiO₂) Polymer waveguides |
| Refractive Index Contrast (Δn) | 0.01–0.5 |
| Insertion Loss | < 1–3 dB |
| Operating Temperature | −40°C to +85°C |
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For Research or Industrial Raw Materials, Not For Personal Medical Use!
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