Olvera, A. D. J. Fernandez ; Lu, H. ; Gossard, A. C. ; Preu, S. (2025)
Continuous-wave 1550 nm operated terahertz system using ErAs:In(Al)GaAs photo-conductors with 52 dB dynamic range at 1 THz.
In: Optics Express, 2017, 25 (23)
doi: 10.26083/tuprints-00019845
Article, Secondary publication, Publisher's Version
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| Item Type: | Article |
|---|---|
| Type of entry: | Secondary publication |
| Title: | Continuous-wave 1550 nm operated terahertz system using ErAs:In(Al)GaAs photo-conductors with 52 dB dynamic range at 1 THz |
| Language: | English |
| Date: | 20 January 2025 |
| Place of Publication: | Darmstadt |
| Year of primary publication: | 2017 |
| Place of primary publication: | Washington, DC |
| Publisher: | Optical Publishing |
| Journal or Publication Title: | Optics Express |
| Volume of the journal: | 25 |
| Issue Number: | 23 |
| Collation: | 9 Seiten |
| DOI: | 10.26083/tuprints-00019845 |
| Corresponding Links: | |
| Origin: | Secondary publication service |
| Abstract: | Telecom-wavelength compatible photoconductors benefit strongly from the large amount and affordability of telecom lasers and components but there are demanding requirements on material development. We demonstrate continuous-wave (CW) photomixing with a setup that only uses ErAs:In(Al)GaAs devices with a peak dynamic range (DNR) of 78 dB and a bandwidth of ∼3.65 THz at an integration time of 300 ms and only 26 mW laser power on each device. The ErAs:InGaAs receiver further features a factor of two lower noise equivalent power (NEP) than a state-of-the-art photoconductor, despite an antenna mismatch. |
| Status: | Publisher's Version |
| URN: | urn:nbn:de:tuda-tuprints-198454 |
| Classification DDC: | 600 Technology, medicine, applied sciences > 620 Engineering and machine engineering |
| Divisions: | 18 Department of Electrical Engineering and Information Technology > Institute for Microwave Engineering and Photonics (IMP) > Terahertz Systems Technology |
| Date Deposited: | 20 Jan 2025 10:59 |
| Last Modified: | 20 Jan 2025 11:00 |
| URI: | https://tuprints.ulb.tu-darmstadt.de/id/eprint/19845 |
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