A 1300-nm high-speed high-power directly modulated distributed-feedback laser using floating feeding electrode has been demonstrated. 5-µm-thick benzocyclobutene was used for planarization to float a coplanar waveguide. Low parasitic capacitance was then formed. 250-µm-long waveguide was fabricated, leading to >28-mW and −3-dB bandwidth of 26 GHz.