THORLABS SL1325-P16, Руководство по эксплуатации

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Swept Source Laser
14138-D02 Rev F 04/17/09 Page 9 of 18
Figure 2: Schematic of the Swept Source Laser
At fast frequency sweep speeds, the laser frequency varies sinusoidally in time. For OCT imaging, accurate and
reliable recalibration of the interference output is required so that the samples are equidistant in frequency.
Thorlabs’ swept source laser is ideal for this application. The laser features a built-in Mach-Zehnder Interferometer
(MZI) with balanced detector output, which can be used as a frequency clock because the zero crossings of the
interference fringe signal are equally spaced in optical frequency (k-space). This 'clock', while useful for resampling
OCT data sets, can also be used to synchronize other measurements.
At fast frequency sweep speeds, the laser frequency varies sinusoidally in time. For OCT imaging, accurate and
reliable recalibration of the interference output is required so that the samples are equidistant in frequency.
Thorlabs’ swept source laser is ideal for this application. The laser features a built-in Mach-Zehnder Interferometer
(MZI) with balanced detector output, which can be used as a frequency clock because the zero crossings of the
interference fringe signal are equally spaced in optical frequency (k-space). This 'clock', while useful for resampling
OCT data sets, can also be used to synchronize other measurements.