Ortac Group research activities covers four main disciplines including Laser Science and Technology, Fiber Technology, Materials Processing and Nanotechnology.

    Fiber laser technology including fundamental science and various applications from medicine to industry are some of the scope of ORTAÇ GROUP.  A state-of-the-art fabrication technology in house is utilized to go beyond the limits of original pulsed and CW laser sources in terms of the compactness and power levels. We focus on the Laser Science and Technology and study Pulsed-Fiber Oscillators, Fiber Amplifiers, Combining of Fiber Lasers, kW-Class Fiber Lasers, and Medical Laser Systems.  Our research portfolio covers the Fiber Technology consisting of different fiber concepts, Fiber Bragg Gratings, Fiber Combiners, Fiber Integration, Cladding Light Stripper, Polishing and End-Cap. The ongoing research activities also include investigations of laser interaction with various solid and biological materials for the formation of nanomaterials with high purity, different sizes and shapes in mass-scale.

    Fiber Drawing

    High-power fiber lasers are important and become popular in recent years due to their remarkable characteristics. Here, we also focus on the new designs both in the fabrication process of the fibers and lasers yielding high-slope efficiency. We also develop new generation of fibers including active/passive photonic crystal fibers (PCFs) and low NA double/triple clad active fibers. In addition to the easy use in the field, capability of reaching at high powers of the new generation fibers are due to preventing local heat with relatively high absorption rates of the pump light all over the fiber. This gives an opportunity to produce fiber lasers for different scientific and industrial applications including the defense industry. We have gained tremendous amount of experience and knowledge as well on fabrication of kW-level combiners and already demonstrated to be solid within high-power fiber lasers. Furthermore, we also conduct theoretical studies to confirm and have a full control on the design parameters.

    Ortac Group Step Index Active Fiber and Ortac Group Photonic Crystal Fiber

    The mission on developing new generation of fiber lasers doped with high concentration of rare-earth ions makes us to study their unique properties by means of nanotechnology, materials science and engineering. We attempt to improve doping concentration and uniformity thus reaching at high powers with low background losses and prevention of devitrification. For this purpose, we use a Modified Chemical Vapor Deposition (MCVD) system which gives us an opportunity to obtain the glass-fiber preforms with high purity and mass-scale production. Then, the fiber preforms are drawn to the polymer coated glass fiber in our fiber drawing tower that can be operated by a capacity over 10 km within a working day. The fibers can be drawn in a way that they preserve its initial geometry and a good mechanical performance which are optimized using our recipes. We have been recognized by the Scientific and Technological Research Council of Turkey (TUBİTAK) to be the first group in Turkey of producing an active fiber which has been successfully demonstrated to operate over 1 kW laser power with an excellent beam quality. Our state-of-the art facilities allow us to characterize the fiber preforms and the fibers which get close to the commercial counterparts. For these reasons, we use throughout characterization techniques to investigate optical, elemental, mechanical and structural properties purposed to be completed with the real-time tests in the field.

    Ortac Group kW Range Combiner

    We also have interests in medical field as an emerging field where the use of laser science and technology increased. We do work on medical lasers and medical optical fibers designed for the endovenous laser ablation operations and a retinal laser system. The lasers are designed to operate either in visible or near infrared (NIR) wavelengths with a flexible range of energies which can be fabricated best to the needs of patients as requested by the medical doctors.

    The intense research in Nanotechnology provide nanoparticles and nanomaterials which are promising for various applications including medical, biological, electronic, and industrial fields. This is due to advancement in the physical properties of the materials when reducing their size within nanoscale regime compared to their bulk counterparts. We are working on the generation of colloidal, pure and stable nanoparticles as well through laser ablation in various liquids and modification of them according to the intended use. The nanoparticle research continues with different collaborations and the research subjects ranges from sensor development to bio-medical applications.