Fig. 1. Schematic diagrams of frequency noise measurement system. (a) Correlation delay self-heterodyne measurement based on fiber-type Michelson interferometer; (b) heterodyne beat-frequency measurement

Fig. 2. Frequency noise spectrum measured with correlation delay self-heterodyne method. Diamond points show data provided by supplier

Fig. 3. Frequency noise spectra measured with optical heterodyne beat-frequency method

Fig. 4. Measured frequency noise spectrum in frequency range of 1mHz--1MHz

Fig. 5. RIN spectra. (a) Measured RIN spectrum with ESA. Dots show data provided by supplier; (b) measured RIN spectra with FFT analyser and DMM

Fig. 6. Measured RIN spectra in frequency range of 1mHz--50MHz