We have compressed timing jitter of mode locked laser diode (MLLD) using 10 GHz base standard clock optical injection and 10 Gbit/s PRBS data pulse signal optical injection when the wavelength of the base standard injection clock light is equal to the wavelength of MLLD. Small timing jitter of 0.25 ps was obtained at -5 dBm injection optical power. The quality factor was 3000 with hybrid MLLD when the electrical power was +27 dBm.