Design an optical two mirrors focusing system

Specifications/Inputs: A two mirrors system; M1 rotating mirror and M2 Torique mirror facing each other Beam source: Multimode Fiber 105 micrometer NA 0.15 @ 915nm (subject to change) Distance R: 125 mm Rotating mirror: Parabolic Distance range from second mirror M2 to work area: 70 to 120 mm Deliverables: Output beam diameter ~100 micrometers; preferably achieving 50 micrometers. Surface manufacturing formula; e.g. torique equation plus coefficients All work is defined as "work for hire"; all intellectual property belongs to the buyer