Continuous-wave operation of DFB laser diodes based on GaN using 10th-order laterally coupled surface gratings

被引：15

作者：

Kang, Ji Hye ^{[1
]}

Wenzel, Hans ^{[1
]}

Freier, Erik ^{[1
]}

Hoffmann, Veit ^{[1
]}

Brox, Olaf ^{[1
]}

Fricke, Joerg ^{[1
]}

Sulmoni, Luca ^{[2
]}

Matalla, Mathias ^{[1
]}

Stoelmacker, Christoph ^{[1
]}

Kneissl, Michael ^{[1
,2
]}

Weyers, Markus ^{[1
]}

Einfeldt, Sven ^{[1
]}

机构：

[1] Leibniz Inst Hochstfrequenztech, Ferdinand Braun Inst, D-12489 Berlin, Germany

[2] Tech Univ Berlin, Inst Solid State Phys, D-10623 Berlin, Germany

来源：

OPTICS LETTERS | 2020年 / 45卷 / 04期

关键词：

D O I：

10.1364/OL.385002

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Single longitudinal mode continuous-wave operation of distributed-feedback (DFB) laser diodes based on GaN is demonstrated using laterally coupled 10th-order surface Bragg gratings. The gratings consist of V-shaped grooves alongside a 1.5 mu m wide p-contact stripe fabricated by using electron-beam lithography and plasma etching. By varying the period of the Bragg grating, the lasing wavelength could be adjusted between 404.8 and 408.5 nm. The feasibility of this device concept was confirmed by mode-hop-free operation up to an optical output power of 90 mW, a low temperature sensitivity of the lasing wavelength, and a Gaussian lateral far-field distribution. (C) 2020 Optical Society of America

引用

页码：935 / 938

页数：4

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