Loading...
Please wait, while we are loading the content...
Similar Documents
A Fully Integrated Heterodyne Receiver Based on a Hot Electron Bolometer Mixer and a Quantum Cascade Laser
| Content Provider | Semantic Scholar |
|---|---|
| Author | Miao, Wei Gao, Huamin Hu, Junjie Zhang, Wendi Ren, Yuan Zhou, Kangmin Li, Huagao Delorme, Yan |
| Copyright Year | 2018 |
| Abstract | We report on a very compact heterodyne receiver by integrating a superconducting NbN hot electron bolometer (HEB) mixer and a semi-insulating surface-plasmon quantum cascade laser (QCL) operating at 2.5 THz as local oscillator in a single block. To ensure effective pumping of the HEB mixer, the QCL's beam is collimated with a parabolic mirror that is integrated in the block too. After the collimation, the beam coupling efficiency between the HEB mixer and the QCL reaches approximately 0.9 and the superconducting HEB mixer can be easily pumped by the QCL. We then measured the receiver noise temperature of the integrated HEB/QCL receiver with a vacuum experimental setup. The lowest uncorrected receiver noise temperature is found to be about 750 K at 2.5 THz. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://www.nrao.edu/meetings/isstt/papers/2018/2018040042.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
