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Low-noise frequency comb

    The CORE unit of TOPTICA’s Difference Frequency Comb (DFC) consists of a low noise mode-locked oscillator, a fiber-optic amplifier, a nonlinear fiber for supercontinuum generation, a CERO unit for difference frequency generation (DFG) and a fiber-optic pre-amplifier. The DFC CORE provides 4 or 8 fCEO-stabilized outputs at 1560 nm. Each output can seed a user-defined extension as specified on the DFC Extensions section. It comes with integrated radio frequency reference and dedicated frep locking electronics. A beat monitoring unit comprising a laptop and a digital scope with spectrum analyzer mode allows for convenient monitoring and analysis of locking beats.