CAJ | 학술논문

报道了一个全光纤结构的高功率超连续谱激光光源。利用自行搭建的环形腔掺镱脉冲光纤激光器作为种子源，采用三级MOPA功率放大，得到了平均功率为62 W，中心波长为1065 nm，3 dB谱宽15 nm，重复频率为118 MHz的皮秒锁模脉冲输出，将其耦合进零色散波长为1040 nm的光子晶体(PCF)，最终得到平均功率为28 W，谱宽覆盖范围为600~1700 nm的超连续谱激光输出，超连续谱的光-光转换效率为45%。实验解决了高功率下大芯径掺杂光纤与PCF的耦合效率低的问题。
보도료일개전광섬결구적고공솔초련속보격광광원。이용자행탑건적배형강참의맥충광섬격광기작위충자원，채용삼급MOPA공솔방대，득도료평균공솔위62 W，중심파장위1065 nm，3 dB보관15 nm，중복빈솔위118 MHz적피초쇄모맥충수출，장기우합진령색산파장위1040 nm적광자정체(PCF)，최종득도평균공솔위28 W，보관복개범위위600~1700 nm적초련속보격광수출，초련속보적광-광전환효솔위45%。실험해결료고공솔하대심경참잡광섬여PCF적우합효솔저적문제。
An all -fiber high power supercontinuum laser source was experimentally reported. An ytterbium-doped ring fiber oscillator was established as the seed source. By utilizing a three-stage master oscillator power amplifier (MOPA), the signal light average power was amplified to 62 W with a central wavelength of 1 065 nm, the 3 dB spectral bandwidth was 15 nm, and the repetition rate was 118 MHz. By coupling the amplified pulsed laser into a piece of photonic crystal fiber(PCF) with a 1 040 nm zero-dispersion wavelength, supercontinuum with 28 W output average power was obtained, the spectrum range was covering from 600 nm to 1 700 nm, and the optical conversion efficiency is 45%. In this experiment, the coupling problem between large core doped fiber and photonic crystal fiber at high output power was also solved.