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DISTRIBUTED DELAY-LINE FOR LOW-COHERENCE INTERFEROMETRY
DISTRIBUTED DELAY-LINE FOR LOW-COHERENCE INTERFEROMETRY
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机译:低相干干涉测量的分布式延迟线
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摘要
A Time Domain Optical Coherence Tomography system using a modulation scheme multiplexes the scanning range of the delay line into different spectral bands. Such a modulation scheme may allow for power consumption reduction compared with a single delay line element since the same modulation pattern is being used for several channels. In an example, the optical coherence tomography system may include a plurality of stages, each stage having a group delay element. The distinct group delays may be introduced to scan a sample with distinct electrical frequency bands at distinct axial scanning depth ranges.
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