The optimized output transmissivities of the cw Ti:sapphire lasers for a givenpump power have been experimentally selected by measuring the powers of reflectedbeams from the fused silica plate placed inside the laser cavity at different incident angles.The optimized output transmissivities for different pump powers can be theoreticallyderived by using the pump thresholds at two different output transmissivities. Themeasurements and calculations have been made for three Ti: sapphire rods with the different concentrations. The theoretical results are approximately in accord with the measured values.