975 nm multimode semiconductor lasers with high-order Bragg diffraction gratingsOACSTPCDEI
The 975 nm multimode diode lasers with high-order surface Bragg diffraction gratings have been simulated and calcu-lated using the 2D finite difference time domain(FDTD)algorithm and the scattering matrix method(SMM).The periods and etch depth of the grating parameters have been optimized.A board area laser diode(BA-LD)with high-order diffraction grat-ings has been designed and fabricated.At output powers up to 10.5 W,the measured spectral width of full width at half maxi-mum(FWHM)is less than 0.5 nm.The results demonstrate that the designed high-order surface gratings can effectively nar-row the spectral width of multimode semiconductor lasers at high output power.
Zhenwu Liu;Li Zhong;Suping Liu;Xiaoyu Ma;
National Engineering Research Center for Optoelectronic Devices,Institute of Semiconductors,Chinese Academy of Sciences,Beijing 100083,China College of Materials Sciences and Opto-Electronic Technology,University of Chinese Academy of Sciences,Beijing 100049,ChinaNational Engineering Research Center for Optoelectronic Devices,Institute of Semiconductors,Chinese Academy of Sciences,Beijing 100083,China
电子信息工程
laser diodesdistributed Bragg reflectorhigh order gratingshigh power laser diodesnarrow spectrum width
《Journal of Semiconductors》 2024 (003)
P.38-44 / 7
supported by the National Key R&D Program of China,No.2022YFB4601201.
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