Photoconductive receivers at 1030 nm for high average power pulsed THz detection
| Autor: | Vogel, Tim, Mansourzadeh, Samira, Nandi, Uttam, Norman, Justin, Preu, Sascha, Saraceno, Clara J. |
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| Rok vydání: | 2023 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1109/TTHZ.2024.3358616 |
| Popis: | In the last few years, many advances have been made in the demonstration of high-average power pulsed THz sources; however, little effort has been made to study compatible sensitive field-resolved detectors. Here, we investigate ErAs:InAlGaAs photoconductive receivers optimized for a probe wavelength of 1030 nm and thus suitable for the new class of high-power ultrafast Ytterbium-based laser sources for THz generation and detection. The performance of the receiver is tested with a few-cycle THz source with high average power up to 20 mW and the dynamic range and saturation behavior of the receiver is thoroughly characterized. Under optimized settings, a dynamic range of more than 115 dB is reached in a 120 s measurement time with 20 mW of THz average power, which is among the highest reported values to date. By reviewing the state-of-the art in TDS measurement and post-processing technology, we identify current limitations and guidelines for further increasing the dynamic range towards 150 dB in short measurement times using high average power THz systems. Comment: 14 pages, 7 figures plus biography |
| Databáze: | arXiv |
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