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Monolithically integrated optical phase lock loop with 1 THz tuneability

Balakier, K; Fice, MJ; Ponnampalam, L; Graham, C; Seeds, AJ; Renaud, C; (2017) Monolithically integrated optical phase lock loop with 1 THz tuneability. In: Proceedings of the 2017 42nd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz). IEEE: Cancun, Mexico. Green open access

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Abstract

We have demonstrated a monolithically integrated optical phase lock loop based on a foundry fabricated photonic integrated circuit. The InP chip contains PIN photodiodes integrated with a 1.5 μm DBR laser which can be phase stabilised with respect to an external optical reference tone at all wavelengths throughout its 1 THz (8 nm) tuning range. The frequency offset between the two lasers can be set to any value between 4 GHz and 12 GHz. The phase noise of the heterodyne signal is also reported. Such an OPLL, together with an optical frequency comb and broad-bandwidth photodetector, could be used for high purity, tuneable mm-wave / THz signal generation.

Type: Proceedings paper
Title: Monolithically integrated optical phase lock loop with 1 THz tuneability
Event: 2017 42nd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)
Location: Cancun (Mexico)
Dates: 27 August 2017 - 01 September 2017
Open access status: An open access version is available from UCL Discovery
DOI: 10.1109/IRMMW-THz.2017.8067102
Publisher version: https://doi.org/10.1109/IRMMW-THz.2017.8067102
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Laser tuning, Integrated optics, Distributed Bragg reflectors, Measurement by laser beam, Optical device fabrication, Optical mixing, Optical feedback
UCL classification: UCL
UCL > Provost and Vice Provost Offices
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/10022677
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