OCTs Spectral / Sw. source	OCM (Scanning)	OCM (Coh. illumination)	OCM (Incoh. illumination)
Axial: Transverse: Resolution	3 to 10 μm 10 μm	3 to 8 μm 0.5 to 2 μm	3 to 8 μm 0.5 to 2 μm	0.5 to 8 μm 0.5 to 2 μm
Speed (Pixels/s)	100 Gpixel/s	1-10 Gpixels/s >100 Gpixels/s with Spectral or Sw. source.	10-50 Gpixels/s 1 processed image	10-50 Gpixels/s 1 processed image
Sources	SLD/ Lasers (fs)	SLD/ Lasers (fs)	SLD/ Lasers (fs)	Thermal Sources LEDs
Typ. Power (sample) Sensitivity	10-100 mW 100/110 dB	10-100mW 100/110 dB	1 mW	0.5-2 mW 80-90 dB
Aberrations Corrections	With Adaptive Optics	With Adaptive Optics	With Adaptive Optics	No loss of resolution (only signal reduction)
Sensitivity to movements	Correction possible	Correction possible	Correction unlikely	Correction unlikely
Post-processing Depth of field and aberration correction	Synthetic aperture, Aberrations correction	Depth of field and aberration correction achieved	Numerically possible	Difficult
Main Drawbacks	Low resolution	Price of fs lasers	Crosstalks	Lower sensitivity: camera saturation. Sensitive to movements
Main Advantages	Broadly used Easy to implement	S/N. Coupling with non-linear microscopy	Possible wavefront shaping	Cheap, High resolution. Sub-cellular metabolism