激光与红外
激光與紅外
격광여홍외
LASER & INFRARED
2014年
5期
491-495
,共5页
全固态%266 nm%被动调Q%脉冲%倍频
全固態%266 nm%被動調Q%脈遲%倍頻
전고태%266 nm%피동조Q%맥충%배빈
all-solid-state%266 nm%passively Q-switched%pulse%frequency doubling
报道了利用激光二极管端面抽运Nd ∶YAG晶体，通过Cr4＋∶YAG晶体可饱和吸收被动调Q，KTP晶体腔外倍频及BBO晶体腔外四倍频，实现266 nm连续脉冲输出。简要分析了被动调Q基本原理，计算并模拟了1064 nm基频光在理想状态下Cr4＋∶YAG晶体不同初始透过率对脉冲激光单脉冲能量的影响。LD抽运功率为4.8 W时，得到266 nm紫外激光平均输出功率为5.63 mW，单脉冲能量约为0.5μJ。在紧凑型毫瓦级266 nm激光器实用化方面取得了一定进展。
報道瞭利用激光二極管耑麵抽運Nd ∶YAG晶體，通過Cr4＋∶YAG晶體可飽和吸收被動調Q，KTP晶體腔外倍頻及BBO晶體腔外四倍頻，實現266 nm連續脈遲輸齣。簡要分析瞭被動調Q基本原理，計算併模擬瞭1064 nm基頻光在理想狀態下Cr4＋∶YAG晶體不同初始透過率對脈遲激光單脈遲能量的影響。LD抽運功率為4.8 W時，得到266 nm紫外激光平均輸齣功率為5.63 mW，單脈遲能量約為0.5μJ。在緊湊型毫瓦級266 nm激光器實用化方麵取得瞭一定進展。
보도료이용격광이겁관단면추운Nd ∶YAG정체，통과Cr4＋∶YAG정체가포화흡수피동조Q，KTP정체강외배빈급BBO정체강외사배빈，실현266 nm련속맥충수출。간요분석료피동조Q기본원리，계산병모의료1064 nm기빈광재이상상태하Cr4＋∶YAG정체불동초시투과솔대맥충격광단맥충능량적영향。LD추운공솔위4.8 W시，득도266 nm자외격광평균수출공솔위5.63 mW，단맥충능량약위0.5μJ。재긴주형호와급266 nm격광기실용화방면취득료일정진전。
266 nm ultraviolet pulse laser is achieved by KTP crystal extra-cavity frequency doubling and BBO crystal extra-cavity frequency quadrupling of a laser in Nd ∶YAG end-pumped by LD and passively Q-switched by Cr4+∶YAG.The basic principle of passively Q-switched is analyzed,and the influence of the initial transmission of the Cr4+∶YAG on single pulse energy of the 1 064nm laser under the ideal condition is calculated and simulated.When the pump power is 4.8W,the output power of 5.63mW and single pulse energy of 0.5μJ at 266 nm laser is ob-tained.Certain progress of practicability of compact milliwatt levels 266nm laser has been made.
