摘要
与传统的ZBLAN(ZrF_(4)-BaF_(2)-LaF_(3)-AlF_(3)-NaF)玻璃相比,ZBYA(ZrF_(4)-BaF_(2)-YF_(3)-AlF_(3))玻璃有着更加良好的热稳定性和化学稳定性。制备出ZBYA玻璃光纤,采用1150 nm拉曼光纤激光器作为泵浦源,使用Ho^(3+)掺杂的ZBYA光纤作为增益介质实现了~2.9μm波长的激光输出,最大输出功率达到了137 mW,斜率效率为8.9%。研究结果表明ZBYA玻璃光纤是一种潜在的用于实现中红外波段激光的增益材料。
Objective The midinfrared (MIR)lasers at~2.9μm have been attracting increasing attention owing to their considerable applications in surgery,military,environmental monitoring,remote sensing,and nonlinear optics.In many ways,fiber laser has unique advantages for achieving MIR laser.In the past few decades,zirconium fluoride glass fiber,represented by ZBLAN (ZrF_(4)-BaF_(2)-LaF_(3)-AlF_(3)-NaF),has been widely used in MIR fiber lasers.However,the poor thermal and chemical stabilities of ZBLAN fibers pose a challenge to achieve higher power MIR lasers.Therefore,in this study,we fabricated ZBYA (ZrF_(4)-BaF_(2)-YF_(3)-AlF_(3)) glass fiber,which is more stable than the ZBLAN fiber,and the Ho^(3+)-doped ZBYA fiber was used as the gain medium to achieve a 2.9-μm MIR laser under 1150-nm pump.This result indicated that ZBYA glass fiber is a potential gain medium material for MIR fiber lasers.Methods In this work,the ZBYA glass with low water content was prepared and polished.The transmittance spectrum in the range of 2000-10000nm of ZBYA glass was measured using Perkin-Elmer Fourier-transform infrared (FTIR)spectrometer (Fig.1).Differential scanning calorimetry was used to measure the thermal properties of the core and cladding glass at a heating rate of 10K/min using a Netzsch STA449F5analyzer(Fig.2).By comparing the transmittance changes of the ZBYA glass and ZBLAN glass after soaking them in water for a long period(24h),it is demonstrated that ZBYA glass has higher chemical stability (Fig.3).Then,we created the Ho^(3+)-doped ZBYA glass fiber and constructed a laser system with ZBYA fiber,an 1150-nm fiber laser,a focus lens,and a dichroic mirror(Fig.5).An output power of~2.9μm was measured using apower detector,and the laser spectrum was observed with an optical spectrum analyzer(YOKOGAWA AQ6377)(Figs.6and 7).Results and Discussions The transition temperature(T_(g)) and crystallization temperature of core and cladding glass are 333℃and 334℃and 406℃and 405℃,respectively(Fig.2).The T_(g)of ZBYA glass is conside
作者
徐昌骏
张集权
刘墨
王顺宾
王鹏飞
Xu Changjun;Zhang Jiquan;Liu Mo;Wang Shunbin;Wang Pengfei(College of Physics and Optoelectronic Engineering,Harbin Engineering University,Harbin,Heilongjiang 150001,China;Institute of Marine Science and Technology,Shandong University,Qingdao,Shandong 266237,China;Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province,College of Optoelectronic Engineering,Shenzhen University,Shenzhen,Guangdong 518060,China)
出处
《中国激光》
EI
CAS
CSCD
北大核心
2022年第1期180-185,共6页
Chinese Journal of Lasers
基金
国家重点研发计划(2020YFA0607602)
国家自然科学基金(61935006,62090062,62005060,61905048)
中央高校基础科研业务经费(3072021CF2514)
深圳市基础研究项目(JCYJ20190808173619062)
哈尔滨工程大学111引智项目(B13015)。
