THORLABS OCT-LK Series, Руководство пользователя

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OCTP Series Scanner Chapter 5: Description
Page 26 MTN003971
5.3. Intended Use
The OCTP is designed for simple and rapid installation. It contains mechanical features that enable compatibility
with Thorlabs’ SM1 lens tube and 30 mm cage system standards, permitting simple, easy system modifications
that improve and optimize the performance. The scanner allows integration of additional components for
adaptation to a specific application.
Please contact a member of the Thorlabs’ OCT support team to determine if other parts you wish to use are
compatible (see Chapter 11). Any modification or servicing of this system by unqualified personnel renders the
warranty null and void, leaving Thorlabs free of any liability.
5.3.1. Realization
The basic optical layout of the OCTP scanner in common path layout is illustrated below in Figure 32.
Figure 32 Optical Layout of the OCTP
The broadband light output from an FC/APC-terminated fiber is collimated and directed into a cube beamsplitter.
The beamsplitter divides the broadband light into a sample arm and a reference arm, similar to a Michelson
interferometer.
The sample arm is propagated onto two galvanometric mirrors to allow for scanning in two axes. The scan
objective then focuses the beam into the sample. Backscattered and back-reflected light is collected by the scan
objective and travels back into the fiber. The light propagated into the reference arm is reflected back into the
fiber. The interference between the beams in these two arms generates the OCT signal.