Rigid adaptor ring for cte mismatched optical device components

An optical device assembly, comprising:

• an optical housing;
• an optical component configured to be disposed in the optical housing;
• an optical device component having a coefficient of thermal expansion (CTE) different from a CTE of the optical component and configured to be disposed in the optical housing;
• and
• a rigid adapter ring configured to be disposed in the optical housing, wherein the rigid adapter ring is disposed between the optical component and the optical device component and within the optical housing, and wherein the rigid adapter ring having one or more mounting pads on either side of the rigid adapter ring that are configured to interface between CTE mismatched optical component and the optical device component, and wherein the CTE of the rigid adapter ring is substantially closer to the CTE of the optical component.