Influence of system bandwidth on self-mixing signal

Self-mixing interferometry (SMI) is a well-developed sensing technology. An SMI system can be described using a model derived from the well-known Lang and Kobayashi equations by setting the system operating in stable region. The features of an SMI signal are determined by the external optical feedback factor (denoted by C). Our recent work shows that when the factor C increases to a certain value, e.g. in moderate feedback regime with 1

Keywords:

• Laser diode
• Distortion
• Interferometry
• Self-mixing interferometry
• Physics
• Bandwidth (signal processing)
• Optics
• sensing system

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