Single-mode low threshold current multi-hole vertical-cavity surface-emitting lasers  

作　　者：赵振波 徐晨 解意洋 周康 刘发 沈光地 

机构地区：[1]Key Laboratory of Opto-electronics Technology of Ministry of Education,Beijing University of Technology

出　　处：《Chinese Physics B》2012年第3期232-235,共4页中国物理B（英文版）

基　　金：Project supported by the National High Technology Research and Development Program of China (Grant No. 2008AA03Z402);the National Natural Science Foundation of China (Grant No. 61076044);the Natural Science Foundation of Beijing,China(Grant Nos. 4092007 and 4102003)

摘　　要：A multi-hole vertical-cavity surface-emitting laser （VCSEL） operating in stable single mode with a low threshold current was produced by introducing multi-leaf scallop holes on the top distributed Bragg-refleetor of an oxidation- confined 850 nm VCSEL. The single-mode output power of 2.6 mW, threshold current of 0.6 mA, full width of half maximum lasing spectrum of less than 0.1 nm, side mode suppression ratio of 28.4 dB, and far-field divergence angle of about 10% are obtained. The effects of different hole depths on the optical characteristics are simulated and analysed, including far-field divergence, spectrum and lateral cavity mode. The single-mode performance of this multi-hole device is attributed to the large radiation loss from the inter hole spacing and the scattering loss at the bottom of the holes, particularly for higher order modes.A multi-hole vertical-cavity surface-emitting laser （VCSEL） operating in stable single mode with a low threshold current was produced by introducing multi-leaf scallop holes on the top distributed Bragg-refleetor of an oxidation- confined 850 nm VCSEL. The single-mode output power of 2.6 mW, threshold current of 0.6 mA, full width of half maximum lasing spectrum of less than 0.1 nm, side mode suppression ratio of 28.4 dB, and far-field divergence angle of about 10% are obtained. The effects of different hole depths on the optical characteristics are simulated and analysed, including far-field divergence, spectrum and lateral cavity mode. The single-mode performance of this multi-hole device is attributed to the large radiation loss from the inter hole spacing and the scattering loss at the bottom of the holes, particularly for higher order modes.

关 键 词：single mode low threshold current multi-hole vertical-cavity surlace-emitting laser 

分 类 号：TN248[电子电信—物理电子学] TN248.4