Please use this identifier to cite or link to this item:
|Title:||High power single-sided Bragg reflection waveguide lasers with dual-lobed far field||Authors:||Wang, L. J.
Zeng, Y. G.
Wang, L. J.
Shan, X. N.
Zhao, H. X.
Yoon, Soon Fatt
|Keywords:||DRNTU::Engineering::Electrical and electronic engineering||Issue Date:||2012||Source:||Wang, L. J., Yang, Y., Zeng, Y. G., Wang, L. J., Tong, C., Shan, X. N., et al. (2012). High power single-sided Bragg reflection waveguide lasers with dual-lobed far field. Applied physics B, 107(3), 809-812.||Series/Report no.:||Applied physics B||Abstract:||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.||URI:||https://hdl.handle.net/10356/95929
|ISSN:||0946-2171||DOI:||10.1007/s00340-012-5034-5||Rights:||© 2012 Springer-Verlag.||Fulltext Permission:||none||Fulltext Availability:||No Fulltext|
|Appears in Collections:||EEE Journal Articles|
Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.