Integrated opto-mechanical tolerance analysis
To perform an accurate optical tolerance analysis, a realistic optomechanical tolerance model and appropriate perturbations simulation are required in the optical design code. To improve optical system tolerancing process, an integrated optomechanical tolerance analysis is proposed. Learn more about INO’s new modeling method resulting in a more efficient allocation of the tolerances and a more accurate prediction of optical system performances.
Powerful standalone for realistic optical tolerancing
INO has recently developed an innovative software application for a more realistic tolerance analysis, improving communication between both optical and optomechanical specialists and making the design process easier, faster, and more accurate. Discover how INO’s standalone application for tolerance analysis to overcome complex simulations of various centering techniques.
High-power/energy large mode area tapered fiber amplifiers
The average power of a short-pulse Yb-doped fiber laser based on a master oscillator and power amplifier is exceeding 500W. In this paper we investigate the thresholds of the transverse mode instability and stimulated Raman scattering using a pulsed seeder. Learn more about INO’s High-power/energy large mode area tapered fiber amplifiers in this paper.
High accuracy lens centering using edge contact mounting
INO’s team introduces a new type of drop-in technique that will enable you to center lenses in optical mounts. By providing a spherical mounting seat, the method will allow relaxation of some manufacturing tolerances and an extension of the centering accuracy without impacting the cost and complexity. Learn more about INO’s new technique called edge contact mounting.
Methods to achieve fast, accurate, and mechanically robust optical breadboard alignment
Usually, laboratory optical systems use commercially off-the-shelf components. On one hand they are easy to assemble and have a wide range of adjustability. One the other hand however, they often require individual alignments that can be very inefficient, time consuming and most of these optomechanical mounts lack the mechanical robustness to maintain operational performances. In this paper, we propose an optomechanical assembly method based on passively aligning design features to simplify breadboard level optical systems, to improve alignment accuracy and maintain operational pointing stability. Discover how INO can bridge the design technological gap between the early prototyping and the production phases with this method.
NEP characterization and analysis method for THz imaging devices
The interest for see-through devices has grown in different market applications and the development of Terahertz (THz) imagers has progressed to satisfy those needs over the last decade. To achieve better estimation of the performance of the imaging device, it is important to have a clear understanding of the characterization method used to calculate the noise-equivalent power (NEP). Discover the NEP characterizations of INO’s Microxcam-384i camera in this paper.
High power UV pulsed laser with LMA tapered fiber
Building upon many years of experience and expertise, INO has become a leader in the sector of lasers. In this paper we explore how the LMA tapered fiber impacts the UV pulsed laser. Learn more about INO’s high power UV pulsed laser.
Terahertz imaging of large objects with high resolution
For more than 30 years INO has been developing a THz imaging system used particularly in the domain of security screening of individuals and non-destructive inspection of objects. It can provide insight on objects that we cannot see with the naked eye or from the infrared cameras. Discover the potential of our THz imaging system in this paper.
Large-mode-area tapered fibers for generation of high energy ultrashort pulses from nonlinear compression
Over the years, INO has become an expert in fiber application and development. Discover in this paper how to use the Yb-doped large mode area tapered fiber in different modes of application.
Lens centering using edge contact mounting
At INO we developed a new type of drop-in technique used to center passively and accurately lenses in optical mounts. This innovative lens mounting method allows to extend the centering accuracy offered by passive lens centering methods to a next level without compromise on cost and complexity. Lean more about edge contact mounting in this paper.
Subwavelength imaging challenges in the infrared and THz wavebands
Interest in subwavelength has increased in multiple fields. INO’s activities with involving the infrared and THz wavebands show that it is possible to help with the challenges of subwavelength and obtain higher imaging system performance. In this paper, learn more about INO’s research aspects to be considered, obtained results and key issues that remain to be addressed.
Portable LWIR hyperspectral imager based on MEMS Fabry-Perot interferometer and broadband microbolometric detector array
The consumer electronics market of connected and wearable devices is growing rapidly and offers a wide range of new applications. INO developed a compact, portable, Long-Wave Infrared (LWIR) hyperspectral imager based on our MICROXCAM-384 camera with an uncooled bolometric and a MEMS tunable Fabry-Pérot Interferometer (FPI) to allow the application to work at lower spectral wavelengths. Read more about this LWIR configuration of the imaging spectrometer in this paper.
Nonlinear compression for generation of high energy ultrashort pulses using an Yb-doped large mode area tapered fiber
In this paper learn more about the nonlinear compression for generation of high energy ultrashort pulses using an Yb-doped large mode area tapered fiber.
Improved photoacoustic dosimetry for retinal laser surgery
For years now, lasers have been used for different medical interventions especially in ocular procedures. In these procedures, laser photocoagulation is well established, and efforts are made to reduce collateral damage from thermal diffusion with a novel treatment using shorter laser pulses. To be widely used, these techniques require a method to ensure safe but sufficient dosage of laser pulses. In this paper, we present a method that takes advantage of temporal pulse formatting technology to minimize variation in absorbed dose in ophthalmic laser treatment and provide intelligent dosimetry feedback based on photoacoustic (PA) response.
Customized packaged bolometers in niche applications at INO
INO has been developing bolometers for several years. In this paper, learn more about the customization of packaged bolometers, their applications, and the evolution of INO’s bolometer packages.
Small uncooled bolometers with a broad spectral response
At INO, we fabricate uncooled bolometers used in different applications. This paper presents the infrared spectral responses of 17 and 35 μm uncooled bolometers.
Yb-doped large mode area tapered fiber with depressed cladding and dopant confinement
In this paper, learn about a polarization-maintaining Yb-doped large mode area fiber with depressed-index inner cladding layer and confinement of rare-earth dopants which has been drawn as a long-tapered fiber.
Wideband response of a terahertz-millimeter imager based on a 384x288 pixel uncooled bolometric detector
In this paper, learn more about INO’s NIRST (New Infra-Red Sensor Technology), an imager based on uncooled bolometers. This technology is suitable for earth observation as it monitors high temperature events on the ground related to fires and volcanic events and will measure their physical parameters and take measurements of sea surface temperatures.
UV LED based gas correlation spectrometer of aromatics for the standoff detection of industrials spills and emissions
Recent developments in UV LEDs allows for simple techniques in the detection of aromatics, benzene and toluene in particular. In this paper, learn more about various implementations of standoff benzene/toluene detection using UV LEDs and gas correlation and the pros and cons of the technique.
Synthetic aperture lidar as a future tool for earth observation
Synthetic aperture radar (SAR) is a critical tool for Earth observation as it provides day and night capabilities in numerous weather conditions. We propose in this paper to use the synthetic aperture lidar (SAL) which is based on the same basic principles as SAR but provides a higher resolution. The SAL system can be made more compact than SAR opening the door to deployment onboard small satellites, airborne platforms and unmanned air vehicles. Discover the results obtained with a SAL laboratory prototype along with the potential applications for Earth observation.
Novel vacuum packaged 384×288 broadband bolometer FPA with enhanced absorption in 3-14μm wavelength range
In this paper, learn more about the development of a fully packaged focal plane array of broadband microbolometers using a gold black thin film to expand its absorption range.
New fiber-based approaches for optical biopsy (Conference Presentation)
Discover INO’s new concept of using fibers for optical biopsy aimed at solving problems such as quality control, complexity costs and limiting background noise in this paper.
Surgical instrument biocontaminant fluorescence detection in ambient lighting conditions for hospital reprocessing and sterilization department (Conference Presentation)
In this paper, learn how INO developed a portable technology for the detection of contaminants on surgical instruments through fluorescence following cleaning with potential applications in the forensics, agro-food, and space fields. The key element of this system is that it works in ambient lighting conditions.
Yb-doped large mode area fibers with depressed clad and dopant confinement
Learn more in this paper about how the large mode area fibers with depressed-index cladding layer and confinement of rare-earth dopants can provide effective suppression of high-order modes.
Synthetic aperture ladar based on a MOPAW laser
The synthetic aperture radar (SAR) has been used for years in long range land surveillance for threat detection, terrain mapping and disaster prevention. For certain applications such as subsidence monitoring, landslide hazard prediction and tactical target tracking, the need for better resolution has appeared. In this paper, learn how the SAL platform based on the INO Master Oscillator with Programmable Amplitude Waveform (MOPAW) laser has the potential to vastly improve resolution.
Reflection imaging in the millimeter-wave range using a video-rate terahertz camera
Numerous applications such as body scanning, building inspection and seeing in degraded visual environments, depend on the ability of millimeter waves to penetrate through dense materials. In this paper, discover the capabilities of INO’s terahertz camera for reflection imaging at millimeter wavelengths.
Airborne pipeline leak detection: UV or IR?
Discover in this paper different approaches to the measurement of the above ground vapor plume created by the spill caused by a small 0.1 l/min (or less) leak in an underground liquid petroleum pipeline.
In this paper, discover INO’s patent pending lens mounting method to optimize optical performance and minimize manufacturing cost, this method could relax manufacturing tolerance, reduce assembly time and provide high centering accuracy.
Disruptive advancement in precision lens mounting
In this paper, learn more about the most common lens mounting techniques used to secure and center lenses in optical systems, their advantages and disadvantages, the precision, and the costs. In addition, INO’s patent pending lens mounting technique that alleviates the drawbacks of the drop-in and the active alignment approaches will also be presented.
A compact THz imaging set-up at 750 microns
Terahertz imagers can use the advances in the infrared domain in order to reduce the cost and size. Counter to IR systems, THz systems must include a source, and this influences overall imaging system size and cost. In this paper, a description of a compact real-time imaging system at 750 μm wavelength will be presented, as well as an overview of the motivation for the wavelength choice, a description of the imaging components is given, and image results are presented