  | |  | Dear Karin
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| A major part of IR applications is based on IR-LEDs and IR lasers. In particular, the use of compact VCSEL arrays (surface emitting lasers) has enabled many new applications in the consumer goods market. Instrument Systems offers now an extensive IR measurement portfolio for IR LEDs and laser sources as VCSEL. It allows analyzing the optical output (such as optical power, spectrum and pulse shape) of IR emitters under various electrical driving conditions (down to nanosecond pulses) and temperature control. In addition, camera-based measurement equipment for VCSEL measurement is obtainable. The test systems for IR emitters are of modular design and meet the requirements of IR applications as e.g. under-display fingerprint sensors, time-of-flight or LIDAR measurements.
In this newsletter we collected a lot of information in the field of IR / VCSEL / LED. Have fun reading!
Your Instrument Systems Team
sales@instrumentsystems.com
Tel.: +49-89-454943-0
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| Enabling optical fingerprint sensors with IR wavelength at 1380 nm
| | Instrument Systems has developed a modular high-end IR test solution that meets the requirements of optical under-display fingerprint sensors with wavelengths above 1100 nm. As the IR radiation at 1380 nm is verified to avoid burn-in phenomena, the requested test equipment needs to be a high-end solution: high-resolution and calibrated for precise measurement of radiometric quantities, pulse measurement in the µs range and with temperature control.
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| | New brochure: IR Measurement Portfolio & Solutions | |
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| Infrared (IR) is defined as electromagnetic radiation (800 nm – 1 mm range) with wavelengths longer than those of visible light. The relevant range for radiation measurement is the near-infrared range (NIR) from 800 – 1400 nm and the short-wavelength IR (SWIR) from 1400 – 3000 nm. Especially the use of VCSEL (surface emitting laser) has enabled many new applications for consumer equipment and in the field of 3D sensing. We offer an extensive portfolio that covers the IR radiation measurement as well as the other aspects related to the control of the device under test (DUT).
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| | New application website: IR Sensing & IR Emitter (LEDs/Laser) | |
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| Our new application website “IR Sensing & IR Emitter” describes measurement tasks ranging from 3D sensing (facial recognition, LiDAR and automotive in-cabin driver monitoring) to optical fingerprint sensors and healthcare monitoring. Special challenges for IR lasers / VCSELs are their narrow-band emission, measurement of homogeneity of VCSEL arrays, temperature dependence of the optical output, and short pulse measurement in the µs or ns range. For IR LEDs special attention has to be paid to their broad spectral range, different radiometric quantities, and also short pulse measurement or temperature control.
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| | \\ TECHNICAL PAPER in PhotonicsViews 3/21
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| | | | Angular resolution in VCSEL radiant intensity distribution measurements | |
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| Vertical cavity surface-emitting lasers (VCSEL) are getting more and more popular for 3D sensing and time-of-flight technology in consumer and automotive applications. VCSEL arrays with hundreds of single emitters are often used. Measurement of the radiant intensity distribution is the key to performing a proper eye safety assessment and designing suitable secondary optics for these emitters.
Written by Dr. Günther Leschhorn, Dr. Thomas Attenberger and Dr. Tobias Schneider.
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