SLED from Exalos is centered around 1060 nm
The SLED EXS210010 is a fiber-coupled and cooled superluminescent light-emitting diode (SLED) that is centered around 1060 nm. It provides a typical 3 dB bandwidth of 70 nm and an optical output power of 20 mW. The SLED is suited for optical coherence tomography (OCT) or other imaging applications requiring a light source in the near-IR.
Exalos
Zurich, Switzerland
[email protected]
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PRESS RELEASE
High-performance SLED at 1060 nm for OCT applications: 70 nm spectral width with 20 mW of output power
Zürich, Switzerland, May 18, 2011 – EXALOS AG has introduced a new high-performance, fiber-coupled and cooled Superluminescent Light Emitting Diode (SLED) centered around 1060 nm. With a typical 3-dB bandwidth of 70 nm and a high optical output power of 20 mW the SLED EXS210010 is perfectly suited for Optical Coherence Tomography (OCT) or other imaging applications requiring a light source in the near IR.
Key Features:
* Center wavelength of 1060 nm matching the water absorption window
* 3-dB optical bandwidth of 70 nm for similar axial resolution than 840 nm SLEDs
* Output power of 20 mW matching higher MPE levels at 1060 nm compared to 840 nm
* ESD protection features included in the 14-pin BTF package
Compared to retina analysis with SLEDs in the 800 nm regime, examination with a center wavelength of 1060 nm shows some distinct features, amongst others:
* deeper penetration into the choroid with choroidal/sclera interface detection
* choroidal penetration independent of fundus pigmentation
* better retinal OCT performance in cataract eyes
For customers requiring light sources with bandwidths broader than 70 nm for their application, EXALOS is offering broadband light sources with spectrally-combined SLEDs to achieve 3-dB bandwidths of 110 nm and 10-dB bandwidths of 130 nm. This broadband light source can be offered either as a turn-key R&D benchtop system or as an OEM unit for easy system integration.
With high-power SLEDs centered around 1060 nm our customers are now able to choose between two technologies from EXALOS: SLEDs for spectrometer-based OCT applications and swept sources for high-speed OCT systems.
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