Title :
Tuneable monolithically integrated photonic THz heterodyne system
Author :
Balakier, K. ; Fice, Martyn J. ; Ponnampalam, Lalitha ; Renaud, Cyril C. ; Seeds, Alwyn J.
Author_Institution :
Dept. of Electron. & Electr. Eng., Univ. Coll. London, London, UK
Abstract :
We report a tuneable heterodyne photonic THz source, monolithically integrated on an InP chip. The system, locked to a comb generator, allows generation of high purity signals and is tuneable from 25 GHz to 1.6 THz. Continuous frequency sweeps of 300 MHz and tuneability between comb lines from 2 GHz to 6 GHz offset are demonstrated. Due to the photonic integration and small dimension, custom-made electronics, the propagation delay in the loop was less than 1.8 ns.
Keywords :
III-V semiconductors; MMIC; indium compounds; microwave photonics; InP; comb generator; comb line; custom-made electronics; frequency 2 GHz to 6 GHz; frequency 25 GHz to 1.6 THz; photonic integration; propagation delay; purity signal; tuneable heterodyne photonic THz source; tuneable monolithically integrated photonic THz heterodyne system; Laser tuning; Measurement by laser beam; Optical filters; Optical mixing; Phase noise; Photonics; THz signal generation; monolithic integration; optical phase lock loop; tuneable millimetre-wave source;
Conference_Titel :
Microwave Photonics (MWP), 2012 International Topical Meeting on
Conference_Location :
Noordwijk
Print_ISBN :
978-1-4673-2863-0
DOI :
10.1109/MWP.2012.6474114
