Abstract

Angled laser diodes based on the longitudinal photonic band crystal (PBC) waveguide are first proposed and fabricated at a wavelength of 905 nm. Tilted sidewalls are utilized to reflect the light downward, thus enlarging the transverse mode size. In the experiment, continuous wave (CW) output power of 630mW/facet is achieved, and stable and narrow divergence angles are obtained in the fast and slow axes, simultaneously. The transverse angle is reduced by 44% compared with that of the conventional broad area (BA) laser based on the same wafer, and the lateral angle is only 1.65° with on-axis main-lobe emission. This device shows a promising future for laser emission with ultra-narrow divergence and easy fabrication.

© 2014 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
High-brightness diode laser arrays integrated with a phase shifter designed for single-lobe far-field pattern

Lei Liu, Jianxin Zhang, Shaodong Ma, Aiyi Qi, Hongwei Qu, Yejin Zhang, and Wanhua Zheng
Opt. Lett. 38(15) 2770-2772 (2013)

High-brightness single-mode double-tapered laser diodes with laterally coupled high-order surface grating

Lei Liu, Hongwei Qu, Yufei Wang, Yun Liu, Yejin Zhang, and Wanhua Zheng
Opt. Lett. 39(11) 3231-3234 (2014)

Holographic fabricated photonic-crystal distributed-feedback quantum cascade laser with near-diffraction-limited beam quality

Quan-Yong Lu, Wei Zhang, Li-Jun Wang, Jun-Qi Liu, Lu Li, Feng-Qi Liu, and Zhan-Guo Wang
Opt. Express 17(21) 18900-18905 (2009)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (5)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription