An experimental program related to High‐Frequency Gravitational Wave (HFGW) optical applications is presented. The fact that gravitational waves are slowed in a superconductor and therefore refracted has been published in peer‐reviewed scientific literature and has remained unchallenged for over a decade. The development of HFGW generators and detectors is a primary objective of multiple research efforts and its ultimate development is considered uncontroversial. The only speculation is when such laboratory HFGW generators will be available and operational. Thus it is appropriate to prepare test objectives to assess the optical applications of HFGW; especially to consider HFGW relic cosmic background, acknowledged by astrophysicists, which can be imaged by a HFGW telescope and sensed by recently developed and fabricated HFGW detectors. This experimental program concentrates on precursor or preliminary proof‐of‐concept, component‐validation laboratory tests relating to the fabrication of a mosaic, high‐temperature superconductor (HTSC) lens for a 100‐meter diameter, f/0.5, precursor HFGW Telescope. This experimental device will involve lens grinding/polishing considerations, telescope fabrication, and insuring the overall structural integrity. A grasp or gain of 3×104for the lens is computed to obtain sufficient concentration of the anisotropic, relic HFGW cosmic background flux for detection. Three HFGW detectors are described that have been fabricated. HFGW lenses hold great promise and can initially be utilized to observe the currently available HFGW cosmic background and then be utilized in HFGW generator/detector optical test benches. Test objectives for this latter application are also presented. © 2004 American Institute of Physics