A novel scheme for all-optical clock component enhancement and clock-to-data suppression of 10 Gb/s non-return-to-zero (NRZ) code based on the effect of gain saturation, chirp induced by semiconductor optical amplifier (SOA) and chirped fiber Bragg grating (CFBG) is proposed and demonstrated. The clock enhancement and 12.9 dB clock-to-data enhancement are achieved after semiconductor optical amplifier and chirped fiber Bragg grating. The transmitted clock is recovered based on stimulated Brillouin scattering (SBS) from the enhanced signal. This clock recovery scheme has the advantage of transparence to data rate and modulation format, low clock jitter, and non-influence of pattern dependence.