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Photonic integrated circuit optical phase lock loop tuneable active filter

Balakier, K; Shams, H; Fice, MJ; Ponnampalam, L; Graham, C; Renaud, C; Seeds, AJ; (2018) Photonic integrated circuit optical phase lock loop tuneable active filter. In: Proceedings of the 2017 IEEE Photonics Conference (IPC) Part II. IEEE: Orlando, FL, USA. Green open access

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Abstract

We report the first foundry-fabricated photonic integrated circuit (PIC) optical phase lock loop (OPLL) tuneable active optical filter for optical frequency comb line selection and amplification. The PIC containing DBR lasers and photodiodes is integrated with low frequency electronics to create an OPLL, which functions as a highly selective optical filter with sub-GHz bandwidth and 50dB out-of-band suppression. The OPLL output is a single tone coherent with the comb line, whose optical power is 6dB higher than the selected input line, and whose frequency can be offset from the input line by an agile and precisely defined frequency.

Type: Proceedings paper
Title: Photonic integrated circuit optical phase lock loop tuneable active filter
Event: 2017 IEEE Photonics Conference (IPC)
Location: Orlando (FL)
Dates: 01 October 2017 - 05 October 2017
Open access status: An open access version is available from UCL Discovery
DOI: 10.1109/PC2.2017.8283409
Publisher version: https://doi.org/10.1109/PC2.2017.8283409
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: integrated optics; optical modulation; optical fabrication; silicon; optical fibre communication; plasmonics; micro-optics; photodiodes; microwave photonics; elemental semiconductors
UCL classification: 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/10024330
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