Laser characteristics of Cr:Nd:GdCOB self-frequency-doubling crystal

Xueyuan Hou, Yuming Sun, Yufei Li, Shihua Xu, Enquan Liu, Shujun Zhang, Zhenxiang Cheng, Huangchu Chen, Zongshu Shao

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


The phase matching angle of GdCOB crystal is calculated. By using Xenon flash lamp as pump source, we have realized the free run from 1.06 μm to 0.53 μm in self-frequency-doubling Cr:Nd:GdCOB (bi-doped) crystal and Nd:GdCOB (uni-doped) crystal. The experimental results show that the threshold energies for bi-doped crystal and uni-doped crystal are 0.92 J and 1.00 J, respectively; when the pump energy is 10 J, the output energies of green laser for two kinds of crystals are 2.46 mJ and 1.96 mJ, respectively. The output energy of Cr:Nd:GdCOB crystal has an increase of 25% in comparison to that of Nd:Gd:COB crystal. In addition, we discuss ways to improve efficiency.

Original languageEnglish (US)
Pages (from-to)135-138
Number of pages4
JournalOptics and Laser Technology
Issue number2
StatePublished - Mar 1 2000

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering


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