High Power Conversion Efficiency Narrow Divergence Angle Photonic Crystal Laser Diodes
9xx nm laser diodes (LDs) with aluminum component continuous gradient photonic band crystal (CCG-PBC) waveguide structure are designed and fabricated. The simulation results indicate that the CCG-PBC structure can significantly reduce the heterojunction barrier and carrier accumulation at the interf...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
IEEE
2022-01-01
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| Series: | IEEE Photonics Journal |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/9834953/ |
| _version_ | 1828443904807010304 |
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| author | Liang Wang Aiyi Qi Xuyan Zhou Ting Fu Chuanwang Xu Renbo Han Hongwei Qu Wanhua Zheng |
| author_facet | Liang Wang Aiyi Qi Xuyan Zhou Ting Fu Chuanwang Xu Renbo Han Hongwei Qu Wanhua Zheng |
| author_sort | Liang Wang |
| collection | DOAJ |
| description | 9xx nm laser diodes (LDs) with aluminum component continuous gradient photonic band crystal (CCG-PBC) waveguide structure are designed and fabricated. The simulation results indicate that the CCG-PBC structure can significantly reduce the heterojunction barrier and carrier accumulation at the interface of the conventional PBC structure. We demonstrate that the LD with CCG-PBC structure can achieve a narrow vertical divergence angle of 16.2° at full width at half maximum, and the divergence angle changes with current not more than 0.5°. Meanwhile, the power conversion efficiency (PCE) of the narrow divergence angle LD can reach 66.7%, and the PCE at 20 W is still over 60%. After optimizing the coating reflectivity and cavity length of the CCG-PBC structure LD, the peak PCE and power are 71.5% and 17.2 W at 25 °C and 77.7% and 23.3 W at 0 °C, respectively, which are optimal results for any edge-emitting LD. Our device provides valuable guidance for researching high power and high efficiency narrow vertical divergence angle LDs. |
| first_indexed | 2024-12-10T21:35:33Z |
| format | Article |
| id | doaj.art-e2573dc27ecd4a3b82ee070493338e6f |
| institution | Directory Open Access Journal |
| issn | 1943-0655 |
| language | English |
| last_indexed | 2024-12-10T21:35:33Z |
| publishDate | 2022-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj.art-e2573dc27ecd4a3b82ee070493338e6f2022-12-22T01:32:40ZengIEEEIEEE Photonics Journal1943-06552022-01-011441610.1109/JPHOT.2022.31929299834953High Power Conversion Efficiency Narrow Divergence Angle Photonic Crystal Laser DiodesLiang Wang0https://orcid.org/0000-0002-9096-7973Aiyi Qi1Xuyan Zhou2https://orcid.org/0000-0003-4168-6291Ting Fu3https://orcid.org/0000-0001-9716-2660Chuanwang Xu4Renbo Han5Hongwei Qu6Wanhua Zheng7https://orcid.org/0000-0001-9158-6681Key Laboratory of Solid-State Optoelectronics Information Technology, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, ChinaKey Laboratory of Solid-State Optoelectronics Information Technology, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, ChinaKey Laboratory of Solid-State Optoelectronics Information Technology, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, ChinaKey Laboratory of Solid-State Optoelectronics Information Technology, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, ChinaKey Laboratory of Solid-State Optoelectronics Information Technology, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, ChinaKey Laboratory of Solid-State Optoelectronics Information Technology, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, ChinaKey Laboratory of Solid-State Optoelectronics Information Technology, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, ChinaKey Laboratory of Solid-State Optoelectronics Information Technology, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, China9xx nm laser diodes (LDs) with aluminum component continuous gradient photonic band crystal (CCG-PBC) waveguide structure are designed and fabricated. The simulation results indicate that the CCG-PBC structure can significantly reduce the heterojunction barrier and carrier accumulation at the interface of the conventional PBC structure. We demonstrate that the LD with CCG-PBC structure can achieve a narrow vertical divergence angle of 16.2° at full width at half maximum, and the divergence angle changes with current not more than 0.5°. Meanwhile, the power conversion efficiency (PCE) of the narrow divergence angle LD can reach 66.7%, and the PCE at 20 W is still over 60%. After optimizing the coating reflectivity and cavity length of the CCG-PBC structure LD, the peak PCE and power are 71.5% and 17.2 W at 25 °C and 77.7% and 23.3 W at 0 °C, respectively, which are optimal results for any edge-emitting LD. Our device provides valuable guidance for researching high power and high efficiency narrow vertical divergence angle LDs.https://ieeexplore.ieee.org/document/9834953/High efficiencyphotonic crystallaser diodesnarrow divergence |
| spellingShingle | Liang Wang Aiyi Qi Xuyan Zhou Ting Fu Chuanwang Xu Renbo Han Hongwei Qu Wanhua Zheng High Power Conversion Efficiency Narrow Divergence Angle Photonic Crystal Laser Diodes IEEE Photonics Journal High efficiency photonic crystal laser diodes narrow divergence |
| title | High Power Conversion Efficiency Narrow Divergence Angle Photonic Crystal Laser Diodes |
| title_full | High Power Conversion Efficiency Narrow Divergence Angle Photonic Crystal Laser Diodes |
| title_fullStr | High Power Conversion Efficiency Narrow Divergence Angle Photonic Crystal Laser Diodes |
| title_full_unstemmed | High Power Conversion Efficiency Narrow Divergence Angle Photonic Crystal Laser Diodes |
| title_short | High Power Conversion Efficiency Narrow Divergence Angle Photonic Crystal Laser Diodes |
| title_sort | high power conversion efficiency narrow divergence angle photonic crystal laser diodes |
| topic | High efficiency photonic crystal laser diodes narrow divergence |
| url | https://ieeexplore.ieee.org/document/9834953/ |
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