Features
• High diffraction efficiency
• Wide wavelength coverage
• Wide selection
• Customizable
These gratings are suitable for various laser applications (external resonator, external cavity, pulse control). Applying TM waves (S-polarization) *1, a high diffraction efficiency is expected for a wide range of wavelengths. The LA Series products are replicated using high-quality masters. All nine products in this LA Series are customizable for laser resistance, substrate, size and other customer requirements.
Standard Specifications
| Grating Type | Equally spaced straight-groove replica grating *2 |
|---|---|
| Blank material | Low expansion Borosilicate glass |
| Dimensions *3 | 60±0.2 (W) × 60±0.2 (H) × 10±0.5 (T) mm |
| Effective area | Total area less 2mm strip around the perimeter |
| Groove density tolerance | ±0.5 grooves/mm |
| Coating *4 | Aluminum (Al) or Gold (Au) |
| Scratches and Digs | 80-50 (in accordance with MIL-O-13830A) |
- *1: The grating groove direction and the oscillation direction of electric field vector is perpendicular.
- *2: The grating grooves are formed with resin.
Be sure to prevent condensation as this can cause a significant deterioration of optical characteristics.
The external appearances and specifications are subject to change without notice. - *3: LA0900-00114:50±0.2(W) × 50±0.2(H) × 10±0.5(T) mm
- ※RoHS compliant (Directive 2011/65/EU + (EU)2015/863 on the Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment)
Outline Drawing
Application to a Variable-wavelength Monochrome Laser ( Littman Configuration )
Application to a pulse stretcher
Application to a pulse compressor
The code number is a combination of the groove density, master number, and coating.
