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机构地区:[1]Key Laboratory of Optoelectronics Technology(Beijing University of Technology),Ministry of Education [2]State Key Laboratory of Integrated Optoelectronics,Institute of Semiconductor,Chinese Academy of Sciences
出 处:《Chinese Physics B》2013年第2期261-264,共4页中国物理B(英文版)
基 金:Project supported by the National High Technology Research and Development Program of China (Grant No. 2008AA03Z402);the Beijing Municipal Natural Science Foundation,China (Grant Nos. 4092007,4112006,4102003,and 4132006);the National Natural Science Foundation of China (Grant Nos. 61076044,61036002,61036009,and 60978067);the Doctoral Fund of the Ministry of Education of China (Grant No. 20121103110018)
摘 要:The polarization of traditional photonic crystal(PC) vertical cavity surface emitting laser(VCSEL) is uncontrollable,resulting in the bit error increasing easily.Elliptical hole photonic crystal can control the transverse mode and polarization of VCSEL efficiently.We analyze the far field divergence angle,and birefringence of elliptical hole PC VCSEL.When the ratio of minor axis to major axis b/a = 0.7,the PC VCSEL can obtain single mode and polarization.According to the simulation results,we fabricate the device successfully.The output power is 1.7 mW,the far field divergence angle is less than 10°,and the side mode suppression ratio is over 30 dB.The output power in the Y direction is 20 times that in the X direction.The polarization of traditional photonic crystal(PC) vertical cavity surface emitting laser(VCSEL) is uncontrollable,resulting in the bit error increasing easily.Elliptical hole photonic crystal can control the transverse mode and polarization of VCSEL efficiently.We analyze the far field divergence angle,and birefringence of elliptical hole PC VCSEL.When the ratio of minor axis to major axis b/a = 0.7,the PC VCSEL can obtain single mode and polarization.According to the simulation results,we fabricate the device successfully.The output power is 1.7 mW,the far field divergence angle is less than 10°,and the side mode suppression ratio is over 30 dB.The output power in the Y direction is 20 times that in the X direction.
关 键 词:photonic crystal vertical cavity surface emitting laser(VCSEL) elliptical holes single mode polarization control
分 类 号:TN248[电子电信—物理电子学]
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