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CLEO is around the corner and will be held fully online. Accessible without registration fee! Take this chance and engage within the Laser Science and Photonic Applications community. Class 5 Photonics will present a talk and a poster: High-power OPCPAs at 1.45 – 2.4 μm and up to 100 W power scalability (SF1H.7) presented by our CEO Dr. Robert Riedel Session: Ultrafast Parametric Sources (SF1H) Friday 9:45 - 10:00 -- watch recorded session here with Robert's presentation starting at 1h:42min, download manuscript here Dual-channel laser system with gap-less tuning from 250 to 1300 nm at megahertz repetition rates for time-resolved photoelectron-emission microscopy and spectroscopy (JW2F.22) presented by our CTO Dr. Michael Schulz Session: Joint Poster Session 11 (JW2F) Wednesday 15:15-16:45 -- watch recorded session here with Michaels presentation starting at minute 30. Get in touch with us and ask your questions despite the exhibitor programm was canceled. We are looking forward to meet you online!  Some good news and some bad news… Just before the coronavirus disease arrived to Europe Class 5 Photonics shipped its very first system to Asia - namely South Korea. We are proud to reach the Asian market and to serve scientists world-wide with our high-power OPCPA systems made in Germany. The shipped White Dwarf OPCPA is a compact (80 cm x 80 cm) one-box laser system incorporating a 40 W Coherent Monaco industrial laser and the Class 5 Photonics' high-power optical parametric chirped-pulse amplifier (OPCPA). This unique combination provides turnkey access to few-cycle pulse widths < 9 fs at 800 nm, with pulse energies > 4 μJ and 1 MHz repetition rate, featuring excellent long-term output stability. The White Dwarf system is ideal for applications ranging from attosecond science to ultrafast electron diffraction and multidimensional spectroscopy. Our little package already arrived at Korea and now the system is waiting for its installation in the Customer's lab. Unfortunately, the current situation of world-wide Corona infections, quarantine and travel bans will postpone the installation. We are patient until then and look forward to rock the customer’s new lab when the White Dwarf OPCPA gets finally installed (we keep you posted).  Proud Laser Engineers a few weeks ago with packaged White Dwarf OPCPA system.
Customer lab in South Korea with White Dwarf OPCPA waiting for its installation. Normalized spectral intensity: White Dwarf OPCPA WD-800, central wavelength ca. 800 nm, 4 W average power, 1 MHz repetition rate, Pump laser Coherent Monaco 40 W. Retrieved temporal intensity profile measured via SHG-FROG: White Dwarf OPCPA WD-800, central wavelength ca. 800 nm, pulse duration FWHM 8.9 fs, 4 W average power, 1 MHz repetition rate, Pump laser Coherent Monaco 40 W. UPDATE: This conference got cancelled. We are going to present the latest results of our 100 W-level Supernova OPCPA at DPG Tagung in Hannover. Come and discuss with us about extreme power at extreme wavelength. Unfortunately, we will not be present with a booth this time, but we are anyway around and are looking forward to some interessting discussions about high-power femtosecond lasers and applications. See you there!  Our cto michael presented at spie Photonics west our tunable White Dwarf OPCPA from 250-1300 nm2/19/2020
Our CTO Michael presented at the SPIE Photonics West 2020 conference our latest developments: A dual channel laser system with gap-less tuning from 250 to 1300 nm at megahertz repetition rates for time resolved photoelectron emission microscopy and spectroscopy. Based on the success story of our White Dwarf OPCPA with high performance operation at a single wavelength, we now also provide tunable solutions for demanding spectroscopy and microscopy applications. Ultrashort pulses (< 30 fs) are delivered in a spectral range from 650 to 1300 nm. This makes the White Dwarf WD-800-tunable the most flexible non-colinear OPA on the market. Additionally, the wavelength range can be further extended to the UV via second harmonic (SHG) and third harmonic generation (THG). Due to our gap-less approach, material scientists have access to the green wavlength range (500 nm) and can, for example, study the transport of carriers excited by a green pump pulse. Equipped with two outputs, our White Dwarf WD-800-tunable-dual offers two synchronized channels and enables pump-probe studies. Thus, time-resolved ARPES or PEEMS benefit from our very flexible solution while maintaining high temporal resolution to study ultrafast dynamics in materials. Our White Dwarf WD-800-tunable can operate at 1, 2 or 4 MHz for fast image acquisition and to suppress space charge effects. A pulse-picker of the integrated pump laser (Coherent Monaco 60 W incl.) can be used to reduce the repetition rate in alignment mode or for lower average power operation.  CTO Jose Pozo of EPIC (European Photonics Industry Consortium) interviewed our CEO Robert Riedel who shared some insights of Class 5 Photonics' journey from the early beginnings to the future.
Robert explains why Class 5 Photonics provides the most powerful OPCPA systems on the market and how Class 5 Photonics pushes lasers to extreme wavelengths at extreme average power. A clear mission to change industry and to provide ground breaking technology to enable researchers to push new limits enhances our success and enabled the company to grow to now 11 employees. Robert gives deep insights about how to grow a former research group to an effective small company, struggles and our deep motivation to contribute in the exciting ultrafast research field. Thanks EPIC for this great interview! You are coming to DESY Photon Science and European XFEL Users' Meeting 29-31 January 2020?
We are exhibiting on Friday at booth K11 and are looking forward to explain you our latest news from our high power OPCPA systems. Also, don't miss our poster about the SUPERNOVA OPCPA with up to 100 W average power at 800 nm, 1550 nm and 2 µm. Merry Christmas and a happy new year wishes the Class 5 Photonics Team. It was an exciting year 2019 with many diverse and interesting projects. We built and installed laser systems for a vast scientific community from multi-photon microscopy, ultra-fast material science to attosecond science covering products from 5 W to 100 W average power. Our team grew by four more employees to support our deep expertise in laser science and ultrafast applications as well as sales and marketing. We look forward to new challenges and new exciting projects in 2020 to serve the ultrafast scientific community!  We congratulate Thorlabs to the acquisition of OPA technology for 2- and 3-photon-microscopy from KMLabs. This clearly shows the strategic importance of this rising field of research. At Class 5 Photonics, we are contributing to this field with award-winning high-power laser technology, enabling novel fast volumetric neuronal imaging techniques.
Within our partnership with Coherent (Santa Clara), we offer and have sold the White Dwarf OPCPA at imaging wavelengths of 960, 1300 and 1700 nm (multi-output) and as few-cycle versions at 800 nm and 2000 nm (multi-output) with µJ pulse energies at record repetition rates up to 10 MHz and unprecedented pulse-to-pulse-stability and reliability. Owing to their high second-order nonlinear susceptibility, organic crystals have gained tremendous interest as THz generators within the scientific community. Recently, high-field THz generation in several organic crystals have been demonstrated by various research groups. The velocity phase matching condition is achieved using collinear propagating geometry. The phase matching condition is best fullfilled when the pump wavelength is in the IR range from 1400 nm to 1700 nm. The absorption of the pump light in the crystals is reduced in this wavelength region, leading to an increased damage threshold, which enables higher pump fluences and hence a higher conversion efficiency.
Our compact and versatile White Dwarf HE laser system is extended to a tunable, high power version centered at a wavelength of 1.55 µm with a pulse duration of < 36 fs making it an optimal source for THz generation with organic crystals. In addition, an optically synchronized compressed probe pulse with a pulse duration of < 15 fs at 850 nm is available as a second output channel. The White Dwarf HE is available with 10, 20 or 30 W output power. We are already looking forward to Photonics West 2020 in San Francisco!! As usual, we can be found in the German Pavillon together with a lot of other innovative, young companies. Meet us there at booth number 4545-40 and we show you our latest developments and updates of our powerful OPCPA systems. Also we are excited to be sponsor of the Ultrafast Phenomena and Nanophotonics session. The latest scientific results about ultra-fast material science, THz spectroscopy, plasmonics and nanophotonics will be shown and discussed here. We are honored to present results about our "Femtosecond OPCPAs from UV to short-wave-IR wavelengths for ultrafast dynamics experiments from condensed matter to atoms, molecules, and clusters" in the Ultrafast Optical Techniques session lead by Giulio N. Cerullo. Don't miss it! UPDATE - our scientific talks:
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