Continuous-wave operation of 405 nm distributed Bragg reflector laser diodes based on GaN using 10th-order surface gratings  

作　　者：J.H.KANG H.WENZEL E.FREIER V.HOFFMANN J.FRICKE O.BROX M.MATALLA S.EINFELDT 

机构地区：[1]Ferdinand-Braun-Institut gGmbH, Leibniz-Institut für Höchstfrequenztechnik,12489 Berlin,Germany

出　　处：《Photonics Research》2022年第5期1157-1161,共5页光子学研究（英文版）

基　　金：European Fund for Regional Development of the European Union in the framework of the Berlin-Brandenburg-Polish joint project“From UV to blue—Reliable laser sources for environmental monitoring(RelyLa)”。

摘　　要：Single longitudinal mode continuous-wave operation of GaN-based distributed Bragg reflector(DBR) laser diodes with 10 th-order surface gratings is demonstrated. The DBR consists of periodic V-shaped grooves on a 2 μm wide ridge waveguide fabricated by using electron-beam lithography and plasma etching. The effect of different lengths of the DBR section and the gain section on the device performance has been studied. Periodic mode hops to the adjacent longitudinal Fabry–Perot resonator mode at shorter wavelength have been observed when increasing the operation current. Between the mode hops, single longitudinal mode emission at around 405 nm is achieved with a full width at half-maximum of 0.03 nm. A linear redshift of the emission wavelength with increasing temperature of 0.019 nm/K was derived.

关 键 词：DIODES WAVEGUIDE RESONATOR 

分 类 号：TN249[电子电信—物理电子学] TN31