Dual-fibre stretcher and coma as tools for independent 2nd and 3rd order tunable dispersion compensation in a fibre-based 'scan-free' time domain optical coherence tomography system

► Adjustable dispersion compensation is demonstrated in a fibered OCT system. ► The system is an hybrid one coupling fibered components and a free space correlator. ► Stretchers allow for 2nd order compensation and coma compensates for the 3rd order. ► Diffraction limited PSF has been obtained with a spectral bandwidth of 165nm(@688nm).