Title :
W-band laser-controlled photonic crystal variable attenuator
Author :
Otter, W.J. ; Hanham, S.M. ; Klein, N. ; Lucyszyn, Stepan ; Holmes, A.S.
Author_Institution :
Centre for Terahertz Sci. & Eng., Imperial Coll. London, London, UK
Abstract :
A photonic crystal W1 defect waveguide attenuator is demonstrated. Variable attenuation at W-band is achieved by illuminating the W1 defect waveguide with lasers with controllable output power levels. Measurements show that a minimum attenuation level of 45 dB is demonstrated across the whole 92-102 GHz band of operation of the W1 defect waveguide and >60 dB in a narrowband region of the operation.
Keywords :
millimetre wave lasers; optical attenuators; photonic crystals; waveguide attenuators; waveguide lasers; W-band laser-controlled photonic crystal variable attenuator; controllable output power level; frequency 92 GHz to 102 GHz; gain 45 dB; photonic crystal W1 defect waveguide attenuator; Frequency measurement; Loss measurement; Optical reflection; Optical variables measurement; Optical waveguides; Photoconductivity; Photonics; Attenuator; Laser; Photoconductivity; Photonic Crystal; W-Band;
Conference_Titel :
Microwave Symposium (IMS), 2014 IEEE MTT-S International
Conference_Location :
Tampa, FL
DOI :
10.1109/MWSYM.2014.6848529
