Ponnampalam, L;
Fice, MJ;
Shams, H;
Renaud, CC;
Seeds, AJ;
(2018)
Tuneable Optical Frequency Comb Generator for THz Spectroscopy.
In:
2018 43rd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz).
IEEE
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Abstract
We present an optical frequency comb generator with a record span of 3.8 THz suitable for high resolution THz spectroscopy, based on a single phase modulator system. The line spacing, exactly referenced to a microwave synthesizer, can be continuously tuned from 17.5 GHz to 20 GHz overcoming the limitation otherwise imposed by the free spectral range of the fibre loop, making the system capable of generating a continuously tuneable electrical signal from 122.5 GHz to >2.7 THz. The system noise has been measured up to a record frequency of 300 GHz, and shown to be limited by the multiplied phase noise of the reference synthesizer.
| Type: | Proceedings paper |
|---|---|
| Title: | Tuneable Optical Frequency Comb Generator for THz Spectroscopy |
| Event: | 43rd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 9-14 Sept. 2018, Nagoya, Japan |
| Location: | Nagoya, JAPAN |
| Dates: | 09 September 2018 - 14 September 2018 |
| ISBN-13: | 978-1-5386-3809-5 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/IRMMW-THz.2018.8510370 |
| Publisher version: | https://doi.org/10.1109/IRMMW-THz.2018.8510370 |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Frequency measurement , Noise measurement , Phase noise , Synthesizers , Optical fibers , Optical filters , Optical mixing |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10064727 |
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