海洋探测用480nm四波长光纤输出激光器

480nm four wavelength optical fiber output laser for ocean exploration

为解决双波长布里渊激光雷达进行海洋探测用的多波长激光光源的需求,采用四波混频周期极化铌酸锂激光谐振腔与分束光纤圈的理论与技术方法,建立四波混频过程的相位匹配条件与频率匹配条件方程,解决了四波混频频率与波矢的匹配问题,实现了四波混频的发生。具体包括:设计了S型整体光路,研制了信号光480nm四波混频周期极化铌酸锂激光谐振腔,由信号光480nm、闲频光1600nm、泵浦光Ⅰ600nm与泵浦光Ⅱ960nm进入信号光480nm四波混频周期极化铌酸锂激光谐振腔,实现了频率匹配与相位匹配,发生四波混频效应,产生信号光480nm输出,还分别设置分束光纤圈,分别将闲频光1600nm、泵浦光Ⅰ600nm与泵浦光Ⅱ960nm引出并输出,结果:输出了1600nm、600nm、960nm与480nm四波长光纤激光,结论:满足了海洋探测的需求。

In order to solve the requirement of multi wavelength laser light source, which used to ocean exploration. Methods used four wave mixing in periodically poled lithium niobate laser resonator and beam fiber ring. Including：the whole light path is set to S. Set the signal light 480nm four wave mixing in periodically poled lithium niobate laser resonator,the idler optical 1600nm transmission fiber is the output end of the 1600nm, the Ura Hikaru 600nm is Hikaru 1 600nm, Ura Hikaru set the 1 600nm output, in beam fiber ring, Ura Hikaru set the 960nm output signal, 960nm of the pump into the signal light 480nm four wave arranged on the idler beam fiber ring set 1600nm, idler arranged on the transmission fiber beam fiber ring in the Ura Ura Hikaru II 960nm transmission fiber pump set II 960nm signal light 480nm, optical 1600nm, 600nm and Ura Hikaru mixing in periodically poled lithium aniobate laser resonator, four wave mixing, produced the signal 480nm output, the final output 480nm, 1600nm, 600nm, 960nm four wavelength fiber laser Optical output.