Bordeaux, France – 19 décembre 2022. Amplitude, a leading manufacturer of ultrafast lasers, announces the acquisition of Fastlite, a French high-technology company specializing in ultrafast pulse shaping, characterization, and optical parametric amplifiers. The acquisition is expected to be completed in early 2023, pending regulatory consultations and approvals.
Amplitude and Fastlite have long-established ties and have worked together to bring advanced ultrafast technology to the market.
” We have worked with the Fastlite team for many years, and it is an honor to have them join the Amplitude family. The complementary expertise of the two companies will enable Amplitude to design and manufacture the next generation of ultrafast lasers.” says Eric Mottay, President, and C.E.O.
“ Fastlite shares the same passion for ultrafast laser technology as Amplitude, and I am looking forward to our teams working together. Amplitude’s world largest ultrafast laser portfolio constitutes an invaluable asset towards the offering of Ytterbium pumped OPA and OPCPA products and solutions. ” explains Pascal Tournois, CEO.
More information about Amplitude:
Amplitude is the international specialist and leader in femtosecond lasers for industrial, medical, and scientific applications. Combining research & innovation with industrial efficiency, Amplitude delivers advanced and reliable femtosecond lasers to a worldwide customer base. With Amplitude manufacturing sites and extensive support and application development facilities in Europe, Asia, and north America, Amplitude is committed to expand laser applications through product quality and proximity with its partners and customers.
More information about Fastlite:
Fastlite is a recognized leader in ultrafast scientific instrumentation and has since 2016 offered to the ultrafast scientific community customized ultrafast laser sources based on Ytterbium-pumped Optical Parametric Chirped Pulse Amplifiers.
Press contact:
Agnès BUYS MAULEON – Global Communication Manager
agnes.mauleon[a]amplitude-laser.com
The manipulation of femtosecond laser light inside transparent media can be directed on varying interaction pathways of micro-explosions, photochemistry and self-focusing filamentation to open new directions in creating dense memory storage, three-dimensional (3D) optical circuits, 3D microfluidic networks, and high-speed scribing tracks[1-3]. Our group has been following these fundamental and nonlinear interactions to control femtosecond laser processes in transparent coreless and single-mode optical fibers (SMFs) and thereby form highly functional and compact fiber devices that may seamlessly integrate with microelectronic chips. Such optical fibers are currently deployed over a billion kilometers of worldwide networks and can also reach into challenging environments such as advanced aircraft structures or cardiovascular systems.
The concept of developing ubiquitous sensing networks relies on the development of novel miniaturized and integrated in-fiber microsystems. Following the miniaturization and integration of chemical and biological devices with optical components for multifunctional lab-on-chip (LOC) microsystems, femtosecond laser processing has enabled us to create a new optofluidic lab-in-fiber platform[4] for environmental, mechanical and analytical sensing that may be widely distributed into fiber networks or inside flexible biomedical probes that is otherwise not possible with more traditional LOC-based technologies.
An essential component for the lab-in-fiber is the laser-formed optical tap that predictably couples light into and out of the light-guiding core of SMFs for connecting with optical probing sensors that have been written in the surrounding fiber cladding. To enable such a novel concept of “fiber cladding photonics”[5,6], Figure 1 shows three traditional approaches developed to partially redirect light from the core waveguide into the laser-written cladding waveguide: (1) A “X-coupler” (Figure 1a) that crosses the center waveguide at a discrete angle, (2) an “S-bend” coupler (Figure 1b) that forms an “S” shaped waveguide to emerge from the SMF core, and (3) a “directional coupler” (Figure 1c) that runs offset and parallel with the SMF core. Our group has demonstrated an unprecedented flexibility in tuning the coupling ratio to values as high as 99 percent while also controlling the light polarization and spectral bandwidth[5,6].
A wide variety of photonic cladding sensing circuits is now available within general types of glass fibers. For example, the formation of helical waveguides to define an in-fiber Mach-Zehnder interferometer has offered unambiguous sensing of fiber torsion[7]. Alternatively, we showcase the distributed fiber-optic 3D shape and temperature sensor shown in Figure 2 that was written in a single laser exposure step[8]. Oil-immersion focusing into the buffer-stripped optical fiber offers a continuous and distortion-free inscription[9], where nine different Bragg grating waveguides (BGWs) were distributed along three parallel waveguide tracks and interconnected via a 1×3 directional coupler. The instantaneous 3D fiber shape is computed from shifts in the nine BGW wavelengths when probed by a spectrometer as shown in Video 1[10], where the center waveguide was designed for minimal sensitivity to bend-induced strain to permit the simultaneous measurement of the temperature profile along the fiber as shown in Video 2[11]. Such a freestanding, flexible and lightweight 3D shape sensor is attractive in wide ranging applications, including the guidance of drug delivery, biomedical catheters and other instruments used in minimally invasive surgeries.
We also exploit the selective hydrofluoric acid etching of laser-modification tracks to enable precise 3D structuring of through and blind holes, reservoirs, microfluidic networks and near-optical quality (12 nm rms) hollow resonators anywhere inside an optical fiber. In this way, existing fiber-optic technology can be elevated from “cladding photonics” into new types of “fiber optofluidics” or MEMS sensors, for example, permitting refractive index and pressure sensing with a fiber-embedded wavefront splitting interferometer[12]. Figure 3 showcases a higher level of integration, combining cladding photonics, microfluidics and optical resonators that efficiently connect with the probing SMF core waveguide[4]. This multiplexed lab-in-fiber offers simultaneous probing of an inline BGW and a cladding Fabry Perot resonator either in-core with a laser-formed X-coupler or externally with a total internal reflection mirror. This highly compact lab-in-fiber was spliced to a SMF for real-time sensing of temperature, axial strain, bending strain, gas pressure, fluid or gas refractive index, or analyte fluorescence[4].
The overall approach of femtosecond laser structuring in optical fiber extends much further to enable selective formation of through and blind holes, evanescent and plasmonic sensing elements, MEMS, 3D microfluidic networks, reservoirs, micro-optics, inline BGW filters, polarization elements, interferometers, spectrometers and bioprobes. New research tools, commercial products and biomedical devices may now be manufactured to, for example, (1) develop analyte-specific sensors into optical fibers for monitoring oil and gas exploration systems and water supplies, (2) exploit the 3D fiber shape sensing capability for catheter guidance, (3) enable optical coherence tomography probing devices in the human body, and (4) construct micro- to nano-holes for differentiating cells, bacteria, viruses and DNA. University of Toronto spin out company, Incise Photonics Inc. (www.incisephotonics.com) is now targeting such commercial applications.
Dr. Moez Haque is a postdoctoral researcher developing novel lab-in-fiber sensors for commercial applications. Prof. Peter R. Herman is full professor in the Department of Electrical and Computer Engineering at the University of Toronto.
References [1] S. A. Hosseini, P. R. Herman, “Method of material processing by laser filamentation”, U.S. Patent 20130126573 A1, filed July 24, 2011. http://www.google.com/patents/US20130126573
[2] R. Osellame, G. Cerullo, R. Ramponi, Femtosecond laser micromachining: photonic and microfluidic devices in transparent materials, Springer-Verlag Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-23366-1
[3] K. Sugioka, Y. Cheng, Ultrafast laser processing: from micro- to nanoscale, Pan Stanford, Boca Raton, 2013. http://dx.doi.org/10.1201/b15030
[4] M. Haque, K. K. C. Lee, S. Ho, L. A. Fernandes, P. R. Herman, “Chemical-assisted femtosecond laser writing of lab-in-fibers”, Lab Chip 14, 3817-3829 (2014). http://dx.doi.org/10.1039/C4LC00648H
[5] J. R. Grenier, M. Haque, L. A. Fernandes, K. K. C. Lee, P. R. Herman, “Femtosecond laser inscription of photonic and optofluidic devices in fiber cladding”, in G. Marowsky (ed.), Planar waveguides and other confined geometries, p. 67, Springer Series in Optical Sciences vol. 189, New York (2015). http://dx.doi.org/10.1007/978-1-4939-1179-0_4
[6] J. R. Grenier, L. A. Fernandes, P. R. Herman, “Femtosecond laser inscription of asymmetric directional couplers for in-fiber optical taps and fiber cladding photonics”, Opt. Express 23(13), 16760-16771 (2015). http://dx.doi.org/10.1364/OE.23.016760
[7] L. A. Fernandes, J. R. Grenier, J. S. Aitchison, P. R. Herman, “Fiber optic stress-independent helical torsion sensor”, Opt. Lett. 40(4), 657-660 (2015). http://dx.doi.org/10.1364/OL.40.000657
[8] K. K. C. Lee, A. Mariampillai, M. Haque, B. A. Standish, V. X. D. Yang, P. R. Herman, “Temperature-compensated fiber-optic 3D shape sensor based on femtosecond laser direct-written Bragg grating waveguides”, Opt. Express 21, 24076-24086 (2013). http://dx.doi.org/10.1364/OE.21.024076
[9] V. Maselli, P. R. Herman, “Integrated optical circuits in fiber cladding by tightly focused femtosecond laser writing”, Proc. SPIE 7585, 75850F-1-75850F-11 (2010). http://dx.doi.org/10.1117/12.845431
[10] Video 1: 3D fiber shape sensing by laser-written cladding photonics, from [8], available at http://www.opticsinfobase.org/oe/viewmedia.cfm?uri=oe-21-20-24076-1
[11] Video 2: 3D fiber shape and distributed temperature sensing, from [8], available at http://www.opticsinfobase.org/oe/viewmedia.cfm?uri=oe-21-20-24076-2
[12] M. Haque, Y. Shen, A. A. Gawad, and P. R. Herman, ‘’Chemical-assisted femtosecond laser structuring of waveguide-embedded wavefront-splitting interferometers”, J. Lightwave Technol. 33(21), 4478-4487 (2015). http://dx.doi.org/10.1109/JLT.2015.2473795
By Daniel X. Hammer, William Calhoun, Do-Hyun Kim, Robert James, Ilko K. Ilev and Victor Krauthamer
The Food and Drug Administration’s Center for Devices and Radiological Health (FDA/CDRH) regulates medical devices and radiological products in the US. We approve new devices that are deemed to be safe and effective and clear for sale devices which are substantially equivalent to older products. A large and growing number of medical devices include lasers and coherent optical sources that require special consideration in the approval process. Moreover, newly available sources and applications have characteristics that make determination of safety difficult. The Office of Science and Engineering Laboratories (OSEL) is the research arm of CDRH, providing basic and applied scientific expertise and consultative technical review to the FDA. OSEL has expertise in biology, physics, solid and fluid mechanics, chemistry and material science, imaging and applied mathematics, and electrical and software engineering. The Division of Physics (DP) has several active research programs that relate to device laser safety. This article summarizes a few of those projects. Continue reading →
RIKEN – Advanced Science Institute, Brain Science Institute
It is becoming increasingly important to observe and analyze the dynamics and functions of microorganisms both for fundamental investigations (such as elucidating the functions of biological cells) and for applications to biomicro systems and medicine. We used femtosecond (fs) laser 3D micromachining to fabricate microfluidic chips (which we term nanoaquariums) for observing microorganisms. Nanoaquariums enable us to drastically reduce the observation time relative to that for the conventional observation method using Petri dishes. Furthermore, they can be used to perform highly functional analysis, which biologists have long desired to realize. We have developed a technique for fabricating nanoaquariums that involves directly forming 3D hollow microstructures with smooth internal surfaces in photostructurable glass by fs laser direct writing followed by annealing and wet etching in dilute hydrofluoric acid (see Fig. 1). This technique permits rapid prototyping of 3D microfluidic systems with different structures, which is greatly desired by biologists for observing different microorganisms. Furthermore, functional microelements such as micromechanical elements and micro optical elements can be easily integrated into the microfluidic structure, permitting more functional observation and analysis to be performed.
POM’s patented close loop Direct Metal Deposition (DMD) process allows precision metal deposition using a laser and a coaxial powder delivery system. Besides this, DMD systems include DMDCAM, a comprehensive 6-axis CAM software solution to generate deposition paths for contour, surface and volume geometry, adopting different deposition path strategies required in Additive Manufacturing processes. The end benefits are enormous, and yields near net shape parts directly from CAD data with controlled heat input, minimal distortion and fine microstructure. However, recent advances in the DMD technology has pushed this envelop further. A superior close loop feedback system has been designed and developed that monitors and controls melt pool geometry as well as temperature simultaneously. The new control will be particularly beneficial for cladding applications, such as wear and/or corrosion protection solutions that often involve dissimilar metal deposition. The new feedback control has been successfully tested and integrated with commercial DMD systems. These new sensors coupled with POM’s process diagnostic software will enable researchers and engineers a new capability for research and development on additive manufacturing, as well as allow manufacturing industry a more robust control on the process.
![Figure 1. A waveguide (a) X-coupler, (b) S-bend coupler and (c) directional coupler are formed in a single-mode fiber (SMF) by femtosecond laser focusing through index-matching oil[9] and connected to the SMF core waveguide[5]. The figure is reproduced, with permission, from Fig. 4.5 of Grenier et al.[5] © 2015 Springer [http://dx.doi.org/10.1007/978-1-4939-1179-0_4]](https://www.laserstoday.com/wp-content/uploads/2016/10/Fig_1_Grenier-1024x613.png)
![Figure 2. (a) Schematic of a temperature-compensated 3D fiber shape sensor, coupled to single-mode fiber (SMF), and laser-written in coreless fused silica fiber[8]. The λ1 to λ9 wavelengths represent nine different Bragg resonances for waveguide gratings distributed along three laser-written and parallel waveguide tracks. Micrographs of the fiber cross section (125 μm diameter) at the (b) coupling and (c) sensor regions show the arrangement of the internal laser-written waveguides. The figure is reproduced, with permission, from Fig. 1 of Lee et al.[8] © 2013 OSA [http://dx.doi.org/10.1364/OE.21.024076].](https://www.laserstoday.com/wp-content/uploads/2016/10/Fig_2_Lee-1024x838.png)
![Figure 3. A multiplexed lab-in-fiber is shown by (a) schematic and (b, c) optical micrographs, integrating: (1) A through-hole crossing the single-mode fiber (SMF) core waveguide for fluorescence detection or absorption spectroscopy, (2) a Fiber Bragg grating (FBG) for strain or temperature sensing, (3) an inline Fabry Perot interferometer (FPI) for refractive index or pressure sensing, and (4) a X-coupler tap and laser-formed waveguide to probe a cladding FPI for refractive index, pressure or bend sensing. Total internal reflecting (TIR) mirrors are used as an alternate probing method by tapping light either into or out of the fiber cladding. The figure is reproduced, with permission, from Figs. 1 and 4 of Haque et al.[4] © 2014 The Royal Society of Chemistry [http://dx.doi.org/10.1039/C4LC00648H].](https://www.laserstoday.com/wp-content/uploads/2016/10/Fig_3_Haque-855x1024.jpg)