Control of the photonic crystal waveguide over the beam profile of vertical-cavity surface-emitting lasers

The control of the photonic crystal waveguide over the beam profile of vertical-cavity surface-emitting lasers is investigated. The symmetric slab waveguide model is adopted to analyze the control parameters, of the beam profile in the photonic-crystal vertical-cavity surface-emitting laser (PC-VCSEL). The filling factor (the ratio of the hole diameter to the lattice constant) and the etching depth control the divergence angle of the PC-VCSEL, and the low filling factor and the shallow etching depth are beneficial to achieve the low-divergence-angle beam. Two types of PC-VCSELs with different filling factors and etching depths are designed and fabricated. The experimental results show that the device with a lower filling factor and a shallower etching depth has a lower divergence angle, which agrees well with the theoretical predictions.

Submitted by zhangdi (zhangdi@red.semi.ac.cn) on 2010-04-21T16:44:22Z No. of bitstreams: 1 Control of the photonic crystal waveguide over the beam profile of vertical-cavity surface-emitting lasers.pdf: 715878 bytes, checksum: 669418a37bc215e01d360180e8b70a02 (MD5)

Approved for entry into archive by 阎军(yanj@red.semi.ac.cn) on 2010-04-21T16:46:36Z (GMT) No. of bitstreams: 1 Control of the photonic crystal waveguide over the beam profile of vertical-cavity surface-emitting lasers.pdf: 715878 bytes, checksum: 669418a37bc215e01d360180e8b70a02 (MD5)

Made available in DSpace on 2010-04-21T16:46:36Z (GMT). No. of bitstreams: 1 Control of the photonic crystal waveguide over the beam profile of vertical-cavity surface-emitting lasers.pdf: 715878 bytes, checksum: 669418a37bc215e01d360180e8b70a02 (MD5) Previous issue date: 2010

National Basic Research Program of China 2006CB921700 ；National Natural Science Foundation of China 10634080 60677046 60838003 ；National High Technology Research and Development Program of China 2006AA03Z403

国内

National Basic Research Program of China 2006CB921700 ；National Natural Science Foundation of China 10634080 60677046 60838003 ；National High Technology Research and Development Program of China 2006AA03Z403