Abstract: A modular free space optical (FSO) communications device may include an adaptive optics (AO) module and an interchangeable optical relay (OR) module. More particularly, the AO module may include an AO housing and at least one AO device carried thereby. Also, the interchangeable OR module may include an OR housing and at least one OR device carried thereby. The at least one OR device of a given OR module may provide a predetermined focal length range from among different focal length ranges for respective OR modules. In addition, the OR housing and the AO housing may be interchangeably connectable and establish an optical path between the at least one OR device and the at least one AO device when connected.

Abstract: A modular free space optical (FSO) communications device may include an optical relay (OR) module and a base module. More particularly, the OR module may include an OR housing and at least one OR device carried thereby. Further, the base module may include a base housing and at least one positioner carried thereby for providing relative movement between the base module and the OR module for optical beam aiming. The modular FSO communications device may also include a camera and a remote station interface connected to the at least one positioner for permitting remote optical beam aiming. Furthermore, the remote station interface may also be connected to the camera for permitting remote viewing.

Abstract: A free space optical (FSO) communications device may include a plurality of power supplies having different respective output voltages. The FSO communications device may further include an adaptive optics (AO) module including an AO housing and a deformable mirror carried thereby. The deformable mirror may include an array of actuators each operating based upon a supplied voltage. In addition, a power controller may also be included for selectively driving the array of actuators using a desired one of the power supplies to conserve electrical power.