Table 1 Characteristics of the OFCs selected for measuring the absorption lines of each gas at the wavelength specified under the name of the gas in the first row.

From: Multi-gas dual-comb spectroscopy with tunable gain-switched laser diodes

Parameter

NH3 (@ 1531.67 nm)

HCN (@ 1549.73 nm)

CO (@ 1569.45 nm)

CO2 (@ 1572.02 nm)

δ f10 (GHz)

35

29

37

36

CNR (dB)

25

17

26.5

24

Nº tones

345

290

375

357

SF

0.96

0.94

0.97

0.98

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