NakuLaser Blog

This video is from CivilLaser,it's a 520nm green fiber coupled laser , the max output power is 700mW, we coupled a 400um fiber to this laser.  Th e fiber length, fiber core diameter and interface can be customized . Let's check it now.

671nm 500mW~900mW High power Red DPSS Laser with TTL Modulation and power supply   [Features] Miniature size Collimated straight beam Easy use & maintenance free Longlife operation High efficiency High reliability   [Specifications] Product Name: 671nm 500mW~900mW Red DPSS Laser Laser Shape: Circular, aspect ratio<1.1:1 Lead Time: 1~3 weeks,  Custom product available! Output Wavelength: 671nm Output Power: 500mW~900mW (Choose) Spatial mode: TEM00 Operating mode: CW or Modulation Modulation:  Analog or TTL modulation 0~30Khz Linewidth: <1 nm Polarization: 100:1 Pointing Stability: <0.05 mrad Beam Diameter(1/e2): 2 mm Divergence Angle: 1.0 mrad Power Stability:  <±5% per 4 hrs Light High: 25mm Temperature Stabilizing: TEC Warm Up Time: <5 minutes Beam quality(M2): <1.2 Optimum Operating Temperature: 20~30℃ Storage Temperature: 10~50℃ MTTF(mean time to failure): 10,000 hrs L...

One of the most important aspects of beam delivery for a high-power laser system is the beam purge. Beam purge can be defined as a low flow of clean, dry air or nitrogen that is introduced into the enclosed laser beam path. This flow of gas keeps a positive pressure inside the enclosed beam path to keep contaminants (particulate or vapors) out of the path of the laser beam. A good beam purge is required to obtain consistent performance from any laser system, regardless of the power level; at power levels higher than 3,000 watts, it is absolutely essential because problems created by poor-quality beam purge often are magnified at these power levels. On any CO2 laser system, a number of external optics are used to transport the unfocused raw beam from the laser source to the workpiece. The path that runs between each external optic is enclosed in a hard conduit or collapsible bellows. This covering provides protection from accidental exposure to the beam and protects the beam from...

Highly efficient high-power short-pulse lasers in the 2 µm wavelength range based on thulium (Tm3+)-doped materials have a variety of applications that include materials processing (such as polymer-to-metal joining), lidar, mid-infrared optical parametric oscillators (OPOs) that produce wavelengths up to 12 μm, and mid-IR supercontinuum generation. They also would enable direct coherent soft x-ray generation via high-order harmonic generation (HHG). For these applications, a light source with much higher conversion efficiency, average power, pulse energy, and shorter pulse duration is desirable. Now, Masaki Tokurakawa and colleagues at the Institute for Laser Science, University of Electro-Communications (UEC; Tokyo, Japan) have developed novel 2 µm high-power short-pulse lasers based on new technique of fiber-laser in-band pumping at 1611 nm and Kerr-lens mode locking with a new Tm-doped gain medium provided from the University of Hamburg by researcher Christian Kränkel.1, 2 ...