Near-diffraction-limited Bragg reflection waveguide lasers

doi:10.1364/ao.57.000f15

CORC > 长春光学精密机械与物理研究所 > 中国科学院长春光学精密机械与物理研究所

	Near-diffraction-limited Bragg reflection waveguide lasers
	Wang, L. J.; Li, Z.; Tong, C. Z.; Shu, S. L.; Tian, S. C.; Zhang, J.; Zhang, X.; Wang, L. J.
刊名	Applied Optics
	2018
卷号	57 期号:34 页码:F15-F21
关键词	brightness nm diodes Optics
ISSN号	1559-128X
DOI	10.1364/ao.57.000f15
英文摘要	We report a near-diffraction-limited tapered Bragg reflection waveguide laser (BRL) with a 10 mu m ridge width, which is significantly larger than the conventional design. The large mode expansion in the vertical waveguide enables a scalable increase in the ridge width for single lateral mode operation. The role of the taper angle in the performance of tapered BRLs with the intrinsic characteristics of a thick vertical waveguide was investigated. The results indicate that the BRL with a taper angle of 3 degrees shows the best far-field performance. An extremely low vertical divergence angle of 14.5 degrees and a lateral divergence as low as 2.8 degrees for 95% power inclusion were realized. A continuous-wave power exceeding 1 W was demonstrated. Over the entire operating current range, the vertical beam is almost unchanged with an excellent beam quality (M-2) of about 1.3. Lateral beam width increases slightly at higher currents due to the increasing contribution of side lobes, but it still remains nearly diffraction-limited with a lateral M-2 of less than 2. Narrow beam divergence and high beam quality of the lasers allow simple and inexpensive collimation and coupling. (C) 2018 Optical Society of America
内容类型	期刊论文
源URL	[http://ir.ciomp.ac.cn/handle/181722/61075]
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	Wang, L. J.,Li, Z.,Tong, C. Z.,et al. Near-diffraction-limited Bragg reflection waveguide lasers[J]. Applied Optics,2018,57(34):F15-F21.
APA	Wang, L. J..,Li, Z..,Tong, C. Z..,Shu, S. L..,Tian, S. C..,...&Wang, L. J..(2018).Near-diffraction-limited Bragg reflection waveguide lasers.Applied Optics,57(34),F15-F21.
MLA	Wang, L. J.,et al."Near-diffraction-limited Bragg reflection waveguide lasers".Applied Optics 57.34(2018):F15-F21.