ERBIUM AND YTTERBIUM IONS DOPED YTTERBIUM CALCIUM OXYBORATE COMPOUND, METHOD FOR GROWING CRYSTAL THEREOF, AND OPTICAL DEVICE PREPARED BY USING THE CRYSTAL

摘要

PURPOSE: A crystalline solid material, a method for growing its crystal, an optical device prepared by using the crystal, and a method for preparing the optical device are provided, which solid material is erbium and ytterbium ions-doped ytterbium calcium oxyborate. CONSTITUTION: The crystalline solid material is represented by the formula: (Er(x)Yb(y)Y(1-x-y))Ca(4+z)B3O(10+z), wherein x is 0.005-0.10, y is 0.005-0.30 and z is 0.00-0.5. The crystal of the solid material is grown with the temperature gradient of 5-300 deg.C/cm by Czochralski method with the increasing velocity of 0.1-10mm/hr and the rotation velocity of 0-70 rpm. A YCa4O(BO3)3 crystal is used as a crystal seed. The solid material crystal is single crystal or thin film crystal. The optical device is a 1.5-1.6 micrometers laser generating device, a nonlinear optical device, a self frequency doubling device or a range finding device.