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Heterogeneously integrated III-V/silicon dual-mode distributed feedback laser array for terahertz generation.
| Content Provider | Semantic Scholar |
|---|---|
| Author | Shao, Haifeng Keyvaninia, Shahram Vanwolleghem, Mathias Ducournau, Guillaume Jiang, Xiaoqing Morthier, Geert Lampin, Jean-François Roelkens, Gunther |
| Copyright Year | 2014 |
| Abstract | We demonstrate an integrated distributed feedback (DFB) laser array as a dual-wavelength source for narrowband terahertz (THz) generation. The laser array is composed of four heterogeneously integrated III-V-on-silicon DFB lasers with different lengths enabling dual-mode lasing tolerant to process variations, bias fluctuations, and ambient temperature variations. By optical heterodyning the two modes emitted by the dual-wavelength DFB laser in the laser array using a THz photomixer composed of an uni-traveling carrier photodiode (UTC-PD), a narrow and stable carrier signal with a frequency of 0.357 THz is generated. The central operating frequency and the emitted terahertz wave linewidth are analyzed, along with their dependency on the bias current applied to the laser diode and ambient temperature. |
| File Format | PDF HTM / HTML |
| DOI | 10.1364/OL.39.006403 |
| PubMed reference number | 25490479 |
| Journal | Medline |
| Volume Number | 39 |
| Issue Number | 22 |
| Alternate Webpage(s) | http://photonics.intec.ugent.be/download/pub_3416.pdf |
| Alternate Webpage(s) | https://doi.org/10.1364/OL.39.006403 |
| Journal | Optics letters |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
