Analog differential-phase detection in optical coherence reflectometer

3 Phase - Resolved Doppler Optical Coherence Tomography

Transverse Priority Phase Sensitive Optical Coherence Tomography

A variation on the standard time domain optical coherence tomography (TDOCT) system is presented. Using an inexpensive piezoelectric stack to modulate the reference mirror position, the amplitude and phase of the sample reflection is determined without scanning. With the primary scan in the transverse direction, en face and B-scan OCT images can be readily produced with phase information. This ...

MEASUREMENT GUIDE OTDR - Optical Time Domain Reflectometer

Quantitative phase imaging with spectral-domain optical coherence phase microscopy

Spectral domain optical coherence phase microscopy provides high resolution quantitative phase measurement. Using a common path Fourier domain optical coherence tomography system, this technique is capable of excellent phase stability of less than 1 milliradian and high imaging speed of up to several hundred KHz Aline rate. The limitation of 2π ambiguity restriction can be overcome by the use o...

Clinical Applications of Optical Coherence Tomography in Ophthalmology

Assessment of the peripapillary nerve fiber layer and macular thickness can be determined in ophthalmology using optical coherence tomography (OCT). Decreased nerve fiber layer thickness and macular ganglion cell thickness in optic nerve ischemia have been correlated with visual field loss. OCT allows deep optic nerve head evaluation which helps understand pathophysiology of diseases.  Furtherm...