Dream Lasers designs and manufactures cost effective ultra-compact Diode Pumped Solid State Lasers. Our lasers feature with high reliability, high stability, high efficiency, low noise and excellent laser beam quality. These lasers are specificly designed for OEM, scientific and industrial use.

Abstract An Optimized desiged CW 9l4nm laser at room temperature is obtained Using tyPe一I critical一matching BI-Bo crystal，457nm blue laser is obtained by 914nm intracavity frequency doubling.The maximum laser output power of 48mw is obtained when a incident pump laser of l.4W is used.The Optical一to一optical conversion up to 3.4%，the power instability in 24h is beter than 土 2.8%.

Dream Lasers Diode-pumped solid-state blue laser is using LD pumped by Nd:YAG or Nd:YVo4 crystal to produce 946nm or 914nm laser, then using double-frequency crystal to get the 473nm & 457nm blue laser, Compare 457nm laser with 473nm laser, the color is more plump, wavelength is shorter, photons energy is larger, the beam point is smaller, and so on, all of these advantage let 457nm laser become more popular in wide application field, eg., optical data storage, high resolution display, underwater communication & surveying, Fluorescence excitation and so on,

Due to when Nd:YAG(946nm) and Nd:YvO4(9l4nm) lase blue laser, the energy jump is near 3 class, Nd:YVO4 can get more powerful energy under laser than Nd:YAG, and result in the high threshold of the laser, which let the 3 class eneryg system of Nd:YVO4 become difficult, but due to compare Nd:YVO;(9l4nm) with Nd:YAG(946nm), the emit area and heart conductance of Nd:Yvo4 is larger, absorptivity range is wide, so making the 457nm laser by Nd:Yvo4 is with advantage,