Optical Sensors and Sensing Congress

19 July 2021 – 23 July 2021
Optica Virtual Event - Pacific Daylight/Summer Time (UTC - 07:00)

Relative Intensity Noise Characterization of a Quantum Cascade Laser Frequency-Comb Symmetric Dual-Comb Spectrometer (JTu5A.13)

Presenter: Nicholas Kosan, Princeton University

We measure the relative intensity noise (RIN) of a symmetric Dual-Comb Spectrometer enabled by quantum cascade laser frequency-combs. The RIN of the maximum peak in the multiheterodyne spectra is mitigated from 5.2*10-3 Hz-1/2 to 2.2*10-3 Hz-1/2 by performing digitally balanced detection between signal and reference channels.

Authors:Nicholas Kosan, Princeton University / Link Patrick, Princeton University / Gerard Wysocki, Princeton University

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