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High power single-sided Bragg reflection waveguide lasers with dual-lobed far field

التفاصيل البيبلوغرافية
العنوان: High power single-sided Bragg reflection waveguide lasers with dual-lobed far field
المؤلفون: L. J. Wang, Y. Yang, Y. G. Zeng, C. Z. Tong, X. N. Shan, H. X. Zhao, R. Wang, S. F. Yoon
المساهمون: School of Electrical and Electronic Engineering
المصدر: Applied Physics B. 107:809-812
بيانات النشر: Springer Science and Business Media LLC, 2012.
سنة النشر: 2012
مصطلحات موضوعية: Physics, Physics and Astronomy (miscellaneous), business.industry, Slope efficiency, General Engineering, General Physics and Astronomy, Bragg's law, Near and far field, Laser, law.invention, Optics, law, Engineering::Electrical and electronic engineering [DRNTU], Optoelectronics, Continuous wave, Quantum efficiency, business, Waveguide, Current density
الوصف: We report on 980-nm InGaAs/GaAs lasers with dual-lobed far field based on a single-sided Bragg reflection waveguide (BRW). The high slope efficiency ∼0.92 W/A and a continuous wave (CW) output power >1.5 W (3.2 W pulsed) have been obtained. The threshold current density is as low as 253 A/cm2 for a 1.5-mm-long device and the transparency current density is only 140 A/cm2. The further analysis shows the intrinsic reason for the single-lobed or the dual-lobed far-field distribution is determined by the mode shape in the cavity, not the single-sided or dual-sided BRW structure. The condition to achieve a narrow single-lobed far-field distribution is discussed.
تدمد: 1432-0649
0946-2171
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d4b3ebf59794ac551e215b547ae4722c
https://doi.org/10.1007/s00340-012-5034-5
حقوق: OPEN
رقم الأكسشن: edsair.doi.dedup.....d4b3ebf59794ac551e215b547ae4722c
قاعدة البيانات: OpenAIRE
الوصف
تدمد:14320649
09462171