Monday 25 August 2014

Key Features & Uses of OCT Spectrometer

Optical Coherence Tomography (OCT) Spectrometer is a technique used to drive 3D images of the internal layers and structures of a tissue sample unreachable by other techniques or surgery. Like other spectrometers, this spectrometer has the advantage of limiting analysis time by obtaining results with just one exposure. Using a spectrometer, a laser beam is directed at a region of tissue, with a reference beam aimed to a mirror.  An OCT spectrometer’s resolution can be .08 nm or less. The exceptionally low signal to noise ratios obtained using an OCT spectrometer increase reliability and throughput.


This spectrometer employs the highly efficient Volume Phase Grating (VPG) as the spectral dispersion element and an ultra sensitive 1024 pixel array detector as the detection element, thereby providing high-speed parallel processing and continuous spectrum measurement. This device uses a single mode fiber, then collimating it with a micro lans. This technique has flexible options for center wavelength and spectral bandwidth. This device features with easy to use GUI-based software for capturing and manipulating data. This device accepts single mode fiber optic inputs and customizable via grating inserts to match the wavelength of the user’s light source.

This device never requires alignment and can be customized for high resolution preference. Standard fabrication process used in this device is easily transferable. Spectrometer on chip solutions are robust, miniaturized optical engines designed for high performance measurement and at a fraction of size weight and cost of free space systems. This OCT device used in many different biomedical applications with retinal imaging being the most successful and the driving force behind much OCT development.  OCT uses low coherence interferometer in which light source is split between that that entering the eye and a reference path.

Hence, these are the features of the device and for purchasing an OCT spectrometer, always choose a reputed supplier that deals in high quality products.

Saturday 19 July 2014

Know About The OCT Spectrometer

OCT (Optical Coherence Tomography) is a technique employed to drive 3D images of the internal layers and structures of a tissue sample. Optical Coherence Tomography (OCT) is a most successful medical optics technology. This technology offers real time, high resolution transverse images for a variety of biomedical and industrial imaging applications. OCT systems use spectral domain technology that offers improvement over time domain approaches. High speed spectral OCT is used for cancer detection.


OCT Imaging

The spectrometer is the core of optical engines. The spectrometer is made with an integrated dual-line camera, offering superior quantum efficiency and noise performance. The spectrometer accepts single mode fiber optic inputs and customizable via grating inserts to match the spectral bandwidth and center wavelength of the user’s light source.



Applications of OCT Spectrometer

Bio-Medical Applications-
  • Opthalmology and vision science research.
  • Cardiology, dermatology, urology and pulmonology.
  • Small animal imaging.
  • Tissue characterization.
  • Doppler blood flow analysis.
  • Cell imaging.
Industrial Applications-
  • Non-destructive material applications.
  • Thin-flim multi-layer thickness analysis.
  • Manufacturing process flow.
Features of OCT Spectrometer-
  • Highly efficient, high resolution volume phase grating.
  • Grating and optical bench customizable for your light source and application.
  • Single mode fiber coupled input.
  • Mounted on SUI digital line scan camera in the genuine NIR wavelength.
  • Easy to use GUI based software for capturing and manipulating data.
Key Design Benefits-
  • No moving parts.
  • Ultra reliable volume phase grating.
  • Temperature controlled.
  • Solid state electronics.

An Oct Spectrometer’s resolution can be .08 nm or less and have a sensitivity of approx 100 db over a range of approximately 2-3 mm. OCT Spectrometer requires special consideration like high-throughput, polarization independence, optimal camera design and excellent roll-off performance.