Devices, systems, and methods for calibrating an OCT imaging system in a laser surgical system

An adjustment system for adjusting an optical path length of a reference arm of an Optical Coherence Tomography (OCT) imaging system, comprising:

• an OCT light source, configured to emit an OCT light beam;
• a beam splitter, configured to split the OCT light beam into an imaging beam, transferred to an imaging arm, and a reference beam, transferred to a reference arm which is separate from the imaging arm of the OCT imaging system;
• a disposable imaging probe configured to guide the imaging beam onto a target and to receive a returned imaging beam from the target;
• wherein
• the beam splitter is configured to generate an interference beam from the returned imaging beam and a returned reference beam from the reference arm;
• an imaging detector, configured to detect the interference beam;
• an imaging processor, configured to generate an OCT image from the detected interference beam;
• and
• a disposable calibration device comprising a target holder to which the imaging probe is removably-coupled such that the imaging probe is maintained in a fixed position within the target holder, the target holder attached to a non-biological reflective target positioned within the target holder at a working distance from a distal end of the imaging probe such that an optical path length of the reference arm can be adjusted to correspond to the working distance and improve a calibration of the generated OCT image;
• wherein
• the distal end of the imaging probe is configured for insertion into an eye;
• the target holder is configured to be removed from the imaging probe prior to insertion of the distal end of the imaging probe into the eye for an imaging procedure;
• and
• the probe and the reflective target are attached to the target holder and situated inside a sterile package that includes the probe, reflective target, and target holder.