Sunday, May 13, 2012

Performance assurance of laser pointer

In summary, high-power blue-violet semiconductor laser technology and traditional PS version has a very bright future in the CTP system. The laser is one of the major scientific and technological inventions since the 20th century, since 1960, Maiman successfully developed the world's first laser was a ruby laser, laser technology is rare in the history of science in high-speed forward with. Especially into the late 1980s, due to the high-power laser diode array laser diode as the very ideal pump source, resulting in high efficiency, small size, long life, stable performance and good beam quality, etc. the emergence of laser diode-pumped solid-state lasers, led to the development of solid-state laser devices. It is the final acceptance of  green laser pointer .
Has the dual advantages of semiconductor lasers and solid-state lasers due to DPSSL, but at the same time to make up for the shortcomings of the two, so DPSSL in scientific research, material processing, health care, military defense, isotope separation, laser fusion, information transmission prospect, has now become one of the important development direction of the field of laser technology. Ultrashort pulses with picosecond and femtosecond pulse width, high pulse repetition frequency, a wide spectrum and high peak power, in all fields with a wide range of applications, ultrashort pulse generation has become today an important a research topic. Femtosecond laser has been since the date of birth is one of the most cutting-edge research direction of the optical field. Many inspection and examination should be performed for  green laser pointer .
Because of its superior characteristics of its application in many areas of basic scientific research, medical, military, industrial and other. Example: nanofabrication, terahertz generation, supercontinuum generation, inertial confinement fusion. It is worth mentioning that two Nobel Prize: A. H. Zewail use femtosecond laser pulses in the femtosecond time resolution to study the molecular dynamics of chemical reaction process, won the 1999 Nobel Prize in Chemistry; T. Hansch, and J. The Hou supercontinuum generated by femtosecond laser applied to the ultra-precision spectroscopy, measurement of, in particular, the optical frequency comb technology, improve the work of the Nobel Prize in Physics in 2005. It is during the production, assembly, commission, disassembly and repair of green laser pointer .
The number of ultrashort pulse generation technology, the semiconductor saturable absorber mirror mode-locking technology to become a research hotspot in recent years due to its unique advantages. In this paper, based on Nd: YV04 crystal gain medium, the SESAM as a clamping device, based on the SESAM mode-locked high-power picosecond laser, and achieved some results. In this paper, the characteristics of high-power lasers, thermal effects of LD end-pumped laser crystal analysis, the calculation of the thermal lens focal length, analysis of the pattern matching, a W-fold thermal unstable resonator, and resonator calculation of the metastable zone effective optimization of the thermal stability chamber. Pre-acceptance and final acceptance are two of the most important inspection and tests for the quality and performance assurance of  laser pointer  .

No comments:

Post a Comment