Single & Multi Mode
Our InP VCSEL technology provides a diverse range of VCSEL types suitable for both single-mode and multi-mode applications. Utilizing our innovative buried tunnel junction (BTJ) concept, we are able to design high-performance lasers that deliver exceptional single-mode spectrum and optimized optical power for multi-mode applications. This technology ensures reliability and efficiency, making it an ideal choice for optical communication needs.
Single-mode InP VCSEL
Our single-mode VCSELs features a side mode suppression ratio (SMSR) of typ. 40 dB and higher. Below is shown an example of a 1310 nm communications VCSEL for AI and datacenter optical interconnect solutions. The circular Gaussian beam shape enables highly efficient optical path design and optical coupling into single-mode fibers or photonic waveguides. High performing Transmit Optical Sub-Assemblies (TOSA) and photonic integrated solutions can be developed with our laser technology.
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Multi-mode InP VCSEL
Our multi-mode VCSELs deliver maximized optical power performance for dedicated application, such as 3D sensing, photo-acoustic gas sensing (PAS) and multi-mode communications systems.
Comparison Single-mode and Multi-mode 1300 nm VCSEL
6.5 mW (Single-mode) to 21 mW (Multi-M) in uncooled TO package
Light-Intensity-Curve
(5µm black, 10µm red, 15µm blue, 20°C)
Light-Intensity-Curve
(5µm black, 10µm red, 15µm blue, 80°C)
High Power InP 1300 nm VCSEL Example
6.5 mW of outputpower uncooled at 20°C
SMSR > 30 dB up to 6 mW output power
Buried Tunnel Junction (BTJ) VCSEL Design
The graphs below illustrate our VCSEL concept enabling us to determine the aperture and single- or multi-mode performance of our lasers. By etching the diameter of the BTJ we can define the active area of the VCSEL, resulting in single- or multi-mode characteristics.
