A comparison between the use of the fringe-side and the frequency-modulation methods to frequency stabilize diode-pumped Tm-Ho:YAG lasers against linear absorption lines of CO2 near 2.1 µm is reported. Frequency stability was evaluated by monitoring of the beat signal between two independently stabilized Tm-Ho:YAG systems. Frequency instability levels of ~20 and ~400 kHz for 1-s integration time were achieved by the frequency-modulation and fringe-side methods, respectively.
2.1-µm lasers frequency stabilized against CO2 lines: comparison between fringe-side and frequency-modulation locking methods
2003
Abstract
A comparison between the use of the fringe-side and the frequency-modulation methods to frequency stabilize diode-pumped Tm-Ho:YAG lasers against linear absorption lines of CO2 near 2.1 µm is reported. Frequency stability was evaluated by monitoring of the beat signal between two independently stabilized Tm-Ho:YAG systems. Frequency instability levels of ~20 and ~400 kHz for 1-s integration time were achieved by the frequency-modulation and fringe-side methods, respectively.File in questo prodotto:
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