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Rapp OptoElectronic and Class 5 Photonics make the next step in commercial systems enabling
three-photon microscopy for deep brain imaging. Joint measurements have been supported by the renowned University Medical Center Hamburg-Eppendorf (UKE) and show promising results in comparison to standard two-photon microscopy. 
Two-photon image (2p) and three-photon image (3p) of the dentate gyrus region in the hippocampus of a mouse. Depth 500 μm. Measurements are the result of a joint campaign of Rapp OptoElectronic and Class 5 Photonics in Hamburg with sample preparation provided by the University Medical Center Hamburg-Eppendorf (UKE).
We present the latest updates about our ultrafast, high-power laser technology at the CLEO virtual conference organized by OSA (Optical Society of America). From bio-imaging to time-resolved studies and CEP - there is something for everyone.
Join us on Thursday May 13th 2021 to see our contributions:
Another White Dwarf for 3-photon microscopy was installed in a bio-imaging lab in Germany. With > 5 W and 40 fs at 1300 nm the WD-1300 provides the highest average power and peak intensity on the market for advanced microscopy applications.
Additionally, our one-box solution and robust engineering achieves excellent power stability and pulse-to-pulse stability (typically < 0.5 %). The integrated, industrial Coherent Monaco 60 W pump laser provides additional reliability and user friendly operation of the White Dwarf system. Hence, biologists can focus on their in-vivo experiments while keeping laser maintenance to a minimum and increasing up-time. The installed system is upgradable with a second channel at 1700 nm (WD-1300-dual). An independent, second OPCPA channel is optimized at 1700 nm and hence multi-color experiments are possible when running the system in a parallel mode (1300 and 1700 nm simultaneously). Alternatively, the user can switch between 1300 and 1700 nm to double the average power at each wavelength for deep brain imaging.
Our CTO Michael presented at Photonics West 2021 our high-power OPCPA system for in vivo multi-photon microscopy: White Dwarf OPCPA. The White Dwarf OPCPA is a compact and robust laser system especially designed for multi-photon microscopy at high performance parameters.
Publication: High power OPCPA system for in-vivo 2- and 3-photon brain imaging, Proc. SPIE 11648, Multiphoton Microscopy in the Biomedical Sciences XXI, 1164819 (5 March 2021); doi: 10.1117/12.2578713
We launched our Moonlander HHG - an efficient coherent EUV source for time-resolved spectroscopy such as ARPES.
Driven by our high-power White Dwarf HE OPCPA, the Moonlander HHG provides high photon flux at high repetition rates in a robust, reliable design. Join us on 4th May 2021 at an online new product release organized by EPIC - EUROPEAN PHOTONICS INDUSTRY CONSORTIUM where we will answer your questions about the Moonlander! Registration new product release: here 
Update 24/3/2021
All conference contribuitons are available on our youtube channel in the Photonics West 2021 playlist. ----------------- Class 5 Photonics presents the latest news about our "extreme power at extreme wavelengths" OPCPA systems at SPIE Photonics West conference.
Additionally, chat opportunities and more information is provided in our online booth of the Digital Marketplace. We are looking forward to hear from you! 
Class 5 Photonics wishes everyone a merry Christmas and nice holidays!
Our master laser builders already practiced their role as Santa Claus and will deliver a 1 W, 800 nm, CEP stable White Dwarf OPCPA. Looking forward to see you next year! 
CEP stable White Dwarf for few-cycle pulses packaged and ready to ship. With this latest technology upgrade, we aim to continue delivering amazing technology with highest quality and in a compact, robust design.
Supernova OPCPA at 2 µm for water-window HHG to investigate challenges in modern chip-making11/24/2020
We produced this video based on an idea to share for #dayofphotonics some insights into our work and people. The short video was produced solely by ourselves. Some director skills, creative story-telling and video cutting know-how within our team got revealed. Most of the scenes were filmed as they happened and show an authentic, exciting day at Class 5 Photonics.
Meet us at our virtual exhibit and join Robert's talk about "Few-cycle OPCPAs at 2 μm".
OSA High-brightness Sources and Light-driven Interactions Congress discusses the latest advances in high-brightness sources, attosecond science, light-driven interactions and mid-IR laser technologies. The conference will be held in an all-virtual, web conference format from 16 to 20 November 2020. Registrations for attendees is still open and free. We look forward to many interesting discussions about high-brightness sources at all wavelengths, from X-ray to mid-IR.
We participate with a poster presentation and product showcase at this year's Ultrafast Phenomena conference UP 2020.
UP 2020 will be held during 16-19 November (UTC+08:00) in an all-virtual, web conference format. The deadline for free registration is November 10th. 
The Optical Society OSA organizes this year's FiO+LS conference in an all virtual event. Next to exciting technical talks a completely virtual exhibit experience is available. Class 5 Photonics is very motivated to try out this cool online platform which gives rise to new possibilities for participants, speakers and exhibitors to engage and connect with each other.
Online conferences and exhibitions will reach - also after Covid - a wider community and give them access to exciting scientific and technical content. Online events enable participants from all over the world to connect despite their travel budget, work situation and restrictions while reducing CO2 emissions. Let's hope we can use this to learn for the future! Get in touch with us at FiO+LS conference on the virtual exhibition platform. A 1:1 chat and a group chat will be available to get directly in contact with us. Let us know your feedback! Ask questions! Watch Robert's (CEO) recorded talk about high-power OPCPA systems! Looking forward to hear from you! Ultrafast dynamics experiments in physics, chemistry and biology, in condensed matter or gas phase require different types of ultrafast laser sources. Class 5 Photonics builds high-power optical parametric chirped pulse amplifiers (OPCPA) which are a powerful toolbox to deliver femtosecond pulses from the XUV to MIR spectral range.
2D Infrared spectroscopy (2DIR) / PEEMS / tr-ARPES / Multi-color pump-probe, Mid-IR and THz spectroscopy / Magneto-optical Kerr-effect (MOKE) microscopy / Raman spectroscopy / HHG, x-ray and electron spectroscopy
We are back on the exhibition and conference floor. Our distributor from hoch laser will proudly present our products and technology at LASER World of PHOTONICS CHINA in Shanghai.
Visit Hall 8.1 B307 and learn about Class 5 Photonics' high-power OPCPA systems to accelerate your research. 
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.  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! 
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