Over last dozen years, fiber optic lasers have been one of the most dynamically developing laser-based technologies. It mostly refers to the MOPA (Master Oscillator Power Amplifier) systems, that hold a wide scope of assets, including an ability to reach extremely high output power, generate both continuous and impulse radiation, in an ultimately broad range of repetition frequencies and single signal duration. These properties contribute to the fact that lasers and fiber optic amplifiers have been widely applied in numerous industries. Yet, the works on enhancement of efficiency and output of the fiber optics, with limited noise of amplified spontaneous emission (ASE), leading to the damage of the active optical cable, are still in progress.
The offer concerns fiber optic amplifiers based on the active optic doped with erbium and ytterbium. The amplifiers characterizes in high efficiency, optical capacity and extended lifespan. In contrary to the solutions available on the market, it requires neither applying supplementary: external laser sources with the wavelength from the ytterbium amplification spectrum, nor technological processes meant to co-doped Er/Yb the active optical cable, or change its structure through fiber Bragg gratings.
The main and the most considerable advantage of this solutions is its simplicity, low manufacturing cost as well as ease and viability of the concept in any fiber optic amplifier, using erbium and ytterbium fibers as an amplifying spectrum. Application of the optical oscillator, which converts noises generated by the spontaneous emission into a controlled laser action, increases efficiency and enhancement of the system and therefore its power output.
Amplifiers of continuous and impulse laser radiation to be applied in optical meteorology (e.g. interferometers), time-resolved spectroscopy, fiber optic telecommunications, optical tomography provided for construction of diagnostic and imaging systems, as well as in military solutions, such as LDV systems, laser rangefinders, LIDARs.
Posted by Wrocławskie Centrum Badań EIT+, Posted on 23.05.2016