Fig. 3
From: Octave spanning operation of visible to SWIR integrated coil-stabilized Brillouin lasers
Integrated coil stabilized Brillouin lasers and measurement systems. a SBS laser locked to coil resonator and frequency noise measurement. b Amplifiers. Injection lock to high-power laser diodes for 674 and 698 nm. Commercial Erbium-Doped Fiber Amplifier (EDFA) for 1550 nm. c Frequency noise measurement for >1 kHz with unbalanced fiber MZI as an optical frequency discriminator. LUT light under test. d Frequency noise measurement for 1 Hz to 1 kHz frequency offset using 1 Hz visible light optical frequency comb with heterodyne detection beat notes. SLS stabilized laser system, SCG supercontinuum generation, SHG second-harmonic generation, FC frequency counter. More details in Supplementary Information S3
