The light emission from the optical module is unstable
However, one common issue that users face is beam instability, which can significantly affect performance and results. We will discuss firstly the basic conception of optical bistability; secondly, the working principles of typical optical bistable devices (OBD) including two kinds of all-optical OBDs: nonlinear F–P etalons lled with fi the saturable absorption. After analyzing the specific reasons, the most common problems are concentrated in the following aspects: 1.
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