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Fig. 1 | Journal of the European Optical Society-Rapid Publications

Fig. 1

From: Suppression of residual amplitude modulation appeared in commercial electro-optic modulator to improve iodine-frequency-stabilized laser diode using frequency modulation spectroscopy

Fig. 1

Frequency modulation spectroscopy with an EOM and an AOM. LD: laser diode; FG: function generator; PL: polarizer; EOM: electro-optic modulator; AOM: acousto-optic modulator; PBS: polarizing beam splitter; APD: avalanche photodetector; PID: proportional–integral–derivative controller; LIA: lock-in amplifier

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