Optical Coherence Tomography
Why Ibsen Photonics for OCT
High performance Spectral Domain OCT (SD-OCT) requires spectrometers to simultaneously offer excellent resolution, high line rates, and low roll-off in an environmentally stable and compact form factor.
At Ibsen Photonics, we design our OCT spectrometers with diffraction-limited optics and Modulation Transfer Functions (MTF) optimized for performance and size to make optimal use of a given OCT camera or detector.
Combined with the world’s best grating diffraction efficiencies, this results in spectrometers offering unmatched roll-off in compact form factors, for integration in high performance systems at a competitive cost.
Ibsen Photonics makes a difference in your OCT system:
Advantages of using Ibsen Photonics for OCT
Our spectrometers and in-house manufactured transmission gratings provide unparalleled sensitivity and diffraction limited optical designs optimized for OCT.
We offer transmission gratings with the highest diffraction efficiency on the market, often >95 % for the entire OCT bandwidth.
Our experienced R&D teams have over 200 years of combined tenure and experience optimizing grating and spectrometer designs to achieve the best possible performance, cost, and size-effective platforms.
These factors yield the following benefits:
Transmission gratings for OCT
At Ibsen Photonics we design and manufacture world’s best surface relief transmission gratings in fused silica, for wavelengths between 175 nm to 2,500 nm.
Our Polarization Independent Grating (PING) designs provide unparalleled diffraction efficiency (DE) and polarization-dependent losses (PDL). The inherent nature of fused silica ensures our gratings are environmentally stable, while working in transmission provides angle insensitivity and vibrational stability.
We design our OCT spectrometers to perfectly match and supplement the performance of our gratings and the selected OCT cameras and detectors, but also supply gratings for use in your own OCT spectrometer design.
Spectrometers for OCT
Our team has designed and manufactured OCT spectrometers for a wide range of applications. In this context, we have produced devices covering bandwidths from 40 to 300 nm with detectors of 1024, 2048, or 4096 pixels.
We engineer spectrometers for maximum performance, whether fully customized or optimized from existing designs. The C-OCT-S-90 exemplifies this approach, providing a compact spectrometer built for portable, high-performance OCT systems, with less than half the volume of our industry-leading OCT-S-90. Despite its reduced size, it delivers excellent roll-off and sensitivity, enabling both systems to capture high-quality OCT images.
We also offer a selection of standard OCT spectrometers, with either MIPI, USB, or CameraLink as data interface and line rates ranging from 20 kHz to 250 kHz
Please contact us if you are interested in a bandwidth, centre wavelength, or detector not offered as a standard product.
Comparison of B-Scans acquired by C-OCT-S-60
and OCT-S-90 using the same sample retina,
optical system and data processing.
More resources
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For further information see below.