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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 5 — Mar. 11, 2013
  • pp: 6091–6100

Growth, thermal properties and laser operation of Nd:Ca3La2(BO3)4: A new disordered laser crystal

Zhongben Pan, Hengjiang Cong, Haohai Yu, Li Tian, Hao Yuan, Huaqiang Cai, Huaijin Zhang, Hui Huang, Jiyang Wang, Qing Wang, Zhiyi Wei, and Zhiguo Zhang  »View Author Affiliations


Optics Express, Vol. 21, Issue 5, pp. 6091-6100 (2013)
http://dx.doi.org/10.1364/OE.21.006091


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Abstract

A novel disordered laser crystal Nd:Ca3La2(BO3)4 is characterized including its crystal growth, structure, thermal properties, inhomogeneously broadened spectra, and laser performance, which result that this crystal should be a promising gain material for the high-power ultrashort pulsed neodymium laser. The complete set of anisotropic thermal properties were systematically studied for the first time. It has been found that thermal contraction happens in the c direction and all the thermal conductivities increase with temperature, indicating a glass-like behavior. Polarized absorption and fluorescence spectra of Nd:Ca3La2(BO3)4 crystal were measured at 298.15 K and 77.3 K, respectively. The results show that both the absorption and the emission spectra of Nd3+ have been inhomogeneously broadened, and thus it is very promising to be used in laser systems to produce femtosecond pulses. CW laser operations at 1.06 μm along the three crystallographic directions has been demonstrated for the first time. A maximum power of 1.08 W with an optical conversion efficiency of 10.6% and slope efficiency of 12.4% was achieved in the a-cut sample.

© 2013 OSA

OCIS Codes
(140.3530) Lasers and laser optics : Lasers, neodymium
(160.3380) Materials : Laser materials

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: January 7, 2013
Revised Manuscript: February 16, 2013
Manuscript Accepted: February 16, 2013
Published: March 4, 2013

Citation
Zhongben Pan, Hengjiang Cong, Haohai Yu, Li Tian, Hao Yuan, Huaqiang Cai, Huaijin Zhang, Hui Huang, Jiyang Wang, Qing Wang, Zhiyi Wei, and Zhiguo Zhang, "Growth, thermal properties and laser operation of Nd:Ca3La2(BO3)4: A new disordered laser crystal," Opt. Express 21, 6091-6100 (2013)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-21-5-6091


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