Used ESI 44 #9389216 for sale

ESI 44 is a neodymium-doped ytterbium solid-state laser manufactured by Electro Scientific Industries. It is designed to output ultra-short pulses with excellent beam quality and stability. The nominal pulsewidth of 44 is 6 picoseconds (ps) with an 18 ps standard deviation. The repetition rate available from this laser is single shot to 400-1000 kHz, and the power can range from low to approximately 2 watts. ESI 44 employs an eye-safe-IR (infrared radiation) laser oscillator to generate light with a wavelength of 1064 nm in the near-infrared range of the electromagnetic spectrum. This allows the output energy density of the laser to be relatively low, thereby making it safe for human eyes. 44 is also capable of producing second and third harmonic beams, at 532nm and 355 nm, respectively. ESI 44's ytterbium-doped laser crystal creates a long-life ultrafast laser with excellent beam quality and stability. It also features a waveguide structure to capture, direct, and focus the light output. A built-in constant-power monitor ensures temperature stability by regulating the laser diode current and providing a temperature signal to the Peltier cooling element. This laser system utilizes a pulse compressor to reduce the time intervals between successively generated pulses to an impressive nanosecond range, considerably improving the pulse accuracy and energy efficiency. It employs a thermoelectric cooler to reduce power loss in the laser. 44 also offers precise pulse control, allowing users to set peak and center power levels, pulse repetition rate, and pulsewidth. Overall, ESI 44 is an efficient and reliable laser for many applications. It is ideal for industrial marking and engraving, as well as scientific research, such as fluorescence and Raman spectroscopy. It features sophisticated control electronics and software, allowing for ease of use and fast integration into existing systems.