Replicas

Shimadzu gratings are made by replicating a master. The grating grooves are formed with resin on top of a glass substrate (blank), as shown in Fig. 9. A reflective coating (e.g., Aℓ) is applied to the grooves. Moreover, we have also the replica diffraction grating which have passed the tests in accordance with Telcordia GR-1221-CORE for optical communication. Because the grating grooves are formed with resin, care is required for use or storage in locations with high temperatures or high humidity conditions.

Fig. 9 Replica Grating

Fig. 9 Replica Grating