Quantum dot mode-locked frequency comb with ultra-stable 25.5 GHz spacing between 20°C and 120°C

Autor: Pan, S, Huang, J, Zhou, Z, Liu, Z, Ponnampalam, L, Tang, M, Lo, MC, Cao, Z, Nishi, K, Takemasa, K, Sugawara, M, Penty, R, White, I, Seeds, A, Liu, H, Chen, S

Semiconductor mode-locked lasers (MLLs) are promising frequency comb sources for dense wavelength-division-multiplexing (DWDM) data communications. Practical data communication requires a frequency-stable comb source in a temperature-varying environm

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f2384190d70a9b7be9397251f946bda0

Terahertz generation mechanism in nano-grating electrode photomixers on Fe-doped InGaAsP

Autor: Mohandas, RA, Freeman, JR, Natrella, M, Rosamond, MC, Ponnampalam, L, Fice, MJ, Seeds, AJ, Cannard, PJ, Robertson, MJ, Moodie, DG, Davies, AG, Linfield, EH, Dean, P

We report the generation mechanism associated with nano-grating electrode photomixers fabricated on Fe-doped InGaAsP substrates. Two different emitter designs incorporating nano-gratings coupled to the same broadband antenna were characterized in a c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=core_ac_uk__::db7f183db2adf1100c05ab898e94444e

Tunable laser with partial reflectors.

Autor: Ponnampalam, L., Plumb, R.G.S., Naseem, S.

Publikováno v: Applied Physics B: Lasers & Optics. 2001, Vol. 73 Issue 5/6, p575. 5p.

A compact tunable coherent terahertz source based on an hybrid integrated optical phase-lock loop

Autor: Ponnampalam, L., Steed, R. J., Fice, M. J., Renaud, C. C., Rogers, D. C., Moodie, D. G., Maxwell, G. D., Lealman, I. F., Robertson, M. J., Pavlovic, L., Naglic, L., Vidmar, M., Seeds, A. J.

Publikováno v: Proceedings: 2010 IEEE International Topical Meeting on microwave photonics: MWP 2010: Oct. 5-9, 2010, Montréal, Québec, Canada. (pp. 151-154). IEEE: Piscataway, US. (2010)

A tuneable terahertz source based on the first hybrid integrated optical phase-lock loop is presented. Generated signals have linewidth

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od_______322::247109b34cb14c7eb2ed0ac097cce626
https://discovery.ucl.ac.uk/id/eprint/1299487/

Photonic-Enabled Microwave and Terahertz Communication Systems

Autor: Seeds, A. J., Fice, M. J., Pozzi, F., Ponnampalam, L., Cyril Renaud, Liu, C. P., Lealman, I. F., Maxwell, G., Moodie, D., Robertson, M. J., Rogers, D. C.

Publikováno v: Proceedings of the Optical Fiber Communication Conference and Exposition (OFC) and The National Fiber Optic Engineers Conference (NFOEC) 2009. (pp. 2032-2034). Optical Society of America: Washington DC, US. (2009)
Scopus-Elsevier

An optical heterodyne technique for generating millimetre-wave and THz carriers with high spectral purity and low phase noise is described, for application to Gb/s wireless communications systems. Progress on key integrated optical components is repo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::7973a91862f4f4cfecae4245723bf3ea
https://discovery.ucl.ac.uk/id/eprint/19406/