Modulation Depth Optimization of High-power Photodiodes-driven-antennas Link
High-power photodiodes (PDs) driving ultrawide antennas directly arises as a promising solution for multi-band, high-efficiency and low-complexity RF front ends since bandwidth-limited electrical power amplifiers are removed. However, high-power performance of PDs is usually hardly to be exerted in...
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| Veröffentlicht in: | IEEE photonics technology letters 2024-02, Vol.36 (4), p.1-1 |
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| container_title | IEEE photonics technology letters |
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| creator | Duan, Xiangyang Chen, Wenjuan Fan, Chen Yang, Zhanyu Lv, Kailin Wu, Saibo Zong, Baiqing |
| description | High-power photodiodes (PDs) driving ultrawide antennas directly arises as a promising solution for multi-band, high-efficiency and low-complexity RF front ends since bandwidth-limited electrical power amplifiers are removed. However, high-power performance of PDs is usually hardly to be exerted in a simple and low-cost directly-modulated photonic RF link, due to the terrible modulation depth of directly-modulated laser (DML). This paper proposes and demonstrates a new method to optimize modulation depth of DML for high-power photodiodes-driven-antennas link by using adaptive optical filtering. The filter is designed adaptively along with the frequency response of DML, which can realize modulation depth to be 100% corresponding to the maximum RF power output of high-power PD, and make the system frequency independent without tuning. As a result, the proposed method can ensure high power output and large instantaneous bandwidth simultaneously. A theoretical and experimental investigation is performed. About 20 dB power conversion efficiency and 20 dBm RF power output are obtained over an 18-GHz working frequency range. |
| doi_str_mv | 10.1109/LPT.2024.3350165 |
| format | Article |
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However, high-power performance of PDs is usually hardly to be exerted in a simple and low-cost directly-modulated photonic RF link, due to the terrible modulation depth of directly-modulated laser (DML). This paper proposes and demonstrates a new method to optimize modulation depth of DML for high-power photodiodes-driven-antennas link by using adaptive optical filtering. The filter is designed adaptively along with the frequency response of DML, which can realize modulation depth to be 100% corresponding to the maximum RF power output of high-power PD, and make the system frequency independent without tuning. As a result, the proposed method can ensure high power output and large instantaneous bandwidth simultaneously. A theoretical and experimental investigation is performed. About 20 dB power conversion efficiency and 20 dBm RF power output are obtained over an 18-GHz working frequency range.</description><identifier>ISSN: 1041-1135</identifier><identifier>EISSN: 1941-0174</identifier><identifier>DOI: 10.1109/LPT.2024.3350165</identifier><identifier>CODEN: IPTLEL</identifier><language>eng</language><publisher>New York: IEEE</publisher><subject>Antennas ; Bandwidth ; Bandwidths ; Directly-modulated links ; Energy conversion efficiency ; Frequency ranges ; Frequency response ; high-power photodiodes ; High-speed optical techniques ; Modulation ; modulation depth ; Optical amplifiers ; Optical filters ; Optical modulation ; Photodiodes ; Power amplifiers ; Radio frequency ; Ultraviolet sources</subject><ispartof>IEEE photonics technology letters, 2024-02, Vol.36 (4), p.1-1</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. 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However, high-power performance of PDs is usually hardly to be exerted in a simple and low-cost directly-modulated photonic RF link, due to the terrible modulation depth of directly-modulated laser (DML). This paper proposes and demonstrates a new method to optimize modulation depth of DML for high-power photodiodes-driven-antennas link by using adaptive optical filtering. The filter is designed adaptively along with the frequency response of DML, which can realize modulation depth to be 100% corresponding to the maximum RF power output of high-power PD, and make the system frequency independent without tuning. As a result, the proposed method can ensure high power output and large instantaneous bandwidth simultaneously. A theoretical and experimental investigation is performed. About 20 dB power conversion efficiency and 20 dBm RF power output are obtained over an 18-GHz working frequency range.</description><subject>Antennas</subject><subject>Bandwidth</subject><subject>Bandwidths</subject><subject>Directly-modulated links</subject><subject>Energy conversion efficiency</subject><subject>Frequency ranges</subject><subject>Frequency response</subject><subject>high-power photodiodes</subject><subject>High-speed optical techniques</subject><subject>Modulation</subject><subject>modulation depth</subject><subject>Optical amplifiers</subject><subject>Optical filters</subject><subject>Optical modulation</subject><subject>Photodiodes</subject><subject>Power amplifiers</subject><subject>Radio frequency</subject><subject>Ultraviolet sources</subject><issn>1041-1135</issn><issn>1941-0174</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNpNkL1PwzAQxS0EEqWwMzBEYk7x-SOOR1Q-ihTUDmW23PhCXdo4OCkI_npSpQPTPZ3eu9P7EXINdAJA9V2xWE4YZWLCuaSQyRMyAi0gpaDEaa9prwG4PCcXbbuhFITkYkSK1-D2W9v5UCcP2HTrZN50fud_h1Wokpl_X6dN-MaYLNahC84Hh23qov_COrV1h3Vt26Tw9cclOavstsWr4xyTt6fH5XSWFvPnl-l9kZZMyC7VlVK5Zhoz1KUCYKgY43klMsaVk6tV7oQsnbKVKnWuKwFWg7Oocp5RgSUfk9vhbhPD5x7bzmzCPtb9S8M0ZCKHrK86JnRwlTG0bcTKNNHvbPwxQM2BmemZmQMzc2TWR26GiEfEf3aeg5IZ_wPvA2ew</recordid><startdate>20240215</startdate><enddate>20240215</enddate><creator>Duan, Xiangyang</creator><creator>Chen, Wenjuan</creator><creator>Fan, Chen</creator><creator>Yang, Zhanyu</creator><creator>Lv, Kailin</creator><creator>Wu, Saibo</creator><creator>Zong, Baiqing</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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However, high-power performance of PDs is usually hardly to be exerted in a simple and low-cost directly-modulated photonic RF link, due to the terrible modulation depth of directly-modulated laser (DML). This paper proposes and demonstrates a new method to optimize modulation depth of DML for high-power photodiodes-driven-antennas link by using adaptive optical filtering. The filter is designed adaptively along with the frequency response of DML, which can realize modulation depth to be 100% corresponding to the maximum RF power output of high-power PD, and make the system frequency independent without tuning. As a result, the proposed method can ensure high power output and large instantaneous bandwidth simultaneously. A theoretical and experimental investigation is performed. 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| subjects | Antennas Bandwidth Bandwidths Directly-modulated links Energy conversion efficiency Frequency ranges Frequency response high-power photodiodes High-speed optical techniques Modulation modulation depth Optical amplifiers Optical filters Optical modulation Photodiodes Power amplifiers Radio frequency Ultraviolet sources |
| title | Modulation Depth Optimization of High-power Photodiodes-driven-antennas Link |
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