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FALC 110 & mFALC 110

Fast laser locking module

    • For linewidth reduction and phase locking (mFALC)
    • PID regulator with less than 15 ns signal delay
    • 90° phase delay at 45 MHz
    • Addresses laser current (fast) and slow element (drift)
    • Sub-Hz laser linewidths demonstrated

    The Fast Analog Linewidth Control (FALC 110) is a module for advanced laser frequency stabilization tasks, such as linewidth reduction and high-bandwidth frequency locking. Due to an optimized circuit layout, the -3 dB bandwidth of the fastest signal path reaches 100 MHz. - The Mixing FALC (mFALC) additionally comprises an analog mixer for phase detection, and is designed for fast phase locking of two lasers to an external RF reference.