Figure 2 | Scientific Reports

Figure 2

From: Highly Sensitive and Precise Analysis of SF6 Decomposition Component CO by Multi-comb Optical-feedback Cavity Enhanced Absorption Spectroscopy with a 2.3 μm Diode Laser

Figure 2The alternative text for this image may have been generated using AI.

The cavity output signal and post-cavity signal when tuning the applied laser current with a sawtooth signal at 20 Hz. (a) Even and odd modes as well as threshold current lowering effect on optical feedback. (b) A magnification of the modes between 0.02 s to 0.03 s. Locking time, estimated by the FWHM, is 510 µs. The time between modes is 1250 µs.

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