I. Introduction
Optical Coherence Tomography (OCT) [1], the optical equivalent of ultrasound imaging, allows micrometer-scale resolution imaging of tissues down to 2–3 mm depth. Besides the well-established clinical use of OCT in ophthalmology, other clinical application fields such as cardiology, dermatology and gastroenterology are growing [2]– [4]. Currently, most OCT systems are based on bulk optics components which make these devices expensive. Reducing their price and size could increase the applicability of OCT, clinically and in other fields, even more.