Laser crystals

Nd: YAG lasers are used in manufacturing for engraving, etching, or marking a variety of metals and plastics, or for metal surface enhancement processes like laser peening. They are extensively used in manufacturing for cutting and welding steel, semiconductors and various alloys

Low loss at 1064nm

High optical quality

Good thermal conductivity and shock characteristics

Applicable to many laser working modes (continuous, pulse, Q-switch, mode lock)

Nd: YAG lasers are also employed to make subsurface markings in transparent materials such as glass or acrylic glass and in white and transparent polycarbonate for identity documents

Ho: YAG (Holmium-doped Yttrium aluminum garnet, Ho: Y₃Al₅O₁₂) is commonly used as an efficient means to generate 2.1μm laser emission from the 5I7 – 5I8 transition

Large emission cross-section; High slope efficiency

High-energy storage capability

Applications such as laser remote sensing, medical surgery, and pumping Mid-IR OPO’s to achieve 3-5micron emission. Ho: YAG laser can be pumped directly by diode lasers or by Tm-doped fiber lasers, with high slope efficiencies

Cr4+: YAG crystals have several advantages when compared to traditional passive Q-switching choices such as organic dyes and color centres materials. Cr4+: YAG is chemically stable, UV resistant and it is durable. Cr4+: YAG will operate over a wide range of temperatures and conditions

High chemical stability and reliability

Long life time and good thermal conductivity

Compact passive Q-Switch

Being easy to be operated

Application: Passively Q-switched lasers for laser rangefinders, LIDAR and LIBS systems, Laser systems where short pulses are required