1.3 µm lasing of circular defect cavity photonic crystal laser with an AlOx cladding layer

IEICE Electronics Express

Masahiko Kondow¹  Yifan Xiong¹  Masato Morifuji¹  Xiuyu Zhang¹  Satoshi Kasamatsu¹  Elbert He¹  Akihiro Maruta¹  Takafumi Hino¹  Shobu Suga¹  Hirotake Kajii¹ 

[1] Graduate School of Engineering, Osaka University

关键词: photonic crystal laser;    circular defect cavity;    line defect waveguide;    1.3 µm lasing;   

DOI  :  10.1587/elex.14.20170664

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

We fabricated a photonic crystal (PC) laser having a circular defect cavity and a line defect output waveguide based on a heterostructure consisting of a slab layer with quantum dots and an AlOx cladding layer. The photonic crystal laser was excited by a 785 nm laser diode. Samples with different parameters have similar threshold values of about 25 µm Room-temperature continuous-wave lasing operation at 1.3 µm range is confirmed by observing the spectrum of output light from the line defect waveguide. The wavelengths of the lasing modes show the dependence on the radius of circular resonator and the radius of air holes, which indicate that the lasing mode is the whispering-gallery mode. These results show the feasibility of realizing PC lasers using AlOx cladding layers.

【 授权许可】

CC BY