940 lpmm Dickson Grating
Volume Phase Holographic Grating (VPHG): 0.076^o/nm

These two graphs above represent three different peak wavelengths obtained from the same grating by changing the angle of incidence (AOI).  The green graph is the nominal (nom) CWL=1545nm at AOI=46.56^o; the blue graph (short 1510nm) AOI=45.36^o (-1.2^o); the red graph (long 1590nm) AOI=48.21^o (+1.65^o).  Note: AOI=AOD.