Figure 1 | Scientific Reports

Figure 1

From: Comb-locked Lamb-dip spectrometer

Figure 1

Experimental setup.

ECDL: extended-cavity diode laser; EOM: electro-optical modulator; SSM: single-sideband modulator; VCO: voltage-controlled oscillator; PS: hybrid 90° phase-shifter; PBS: polarizing beam splitter; PZT: piezoelectric transducer; FC: fiber coupler; DSF: dispersion-shifted fiber; APD: avalanche photodetector; AOFS: acousto-optical frequency shifter; CRIO (Compact Reconfigurable Input/Output): FPGA-based programmable automation controller. Blue and red lines refer to fiber and free-space paths, respectively, while dashed grey lines to electrical connections.

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