Title :
Continuous-fiber modulator with high-bandwidth coplanar strip electrodes
Author :
Creaney, S. ; Johnstone, W. ; McCallion, K.
Author_Institution :
Div. of Optoelectron., Strathclyde Univ., Glasgow, UK
fDate :
3/1/1996 12:00:00 AM
Abstract :
Operation of a continuous-fiber modulator based on coupling from a fiber side-polished beyond cut-off to a multimode planar waveguide has been demonstrated for the first time at gigahertz frequencies. The bandwidth of the modulator electrode structure was /spl sim/4 GHz while the optical insertion loss was measured at <0.5 dB. The device was used to produce mode-locked pulse trains in an erbium fiber laser at repetition rates of /spl sim/3 GHz.
Keywords :
coplanar waveguides; electro-optical modulation; electrodes; optical couplers; optical fibre couplers; optical losses; optical planar waveguides; polishing; 4 GHz; continuous-fiber modulator; erbium fiber laser; gigahertz frequencies; high-bandwidth coplanar strip electrodes; mode-locked pulse trains; modulator electrode structure; multimode planar waveguide; optical fibre couplers; optical insertion loss; optical planar waveguide couplers; repetition rates; side-polished optical fiber; Bandwidth; Cutoff frequency; Electrodes; Optical fiber devices; Optical losses; Optical modulation; Optical planar waveguides; Optical waveguides; Planar waveguides; Strips;
Journal_Title :
Photonics Technology Letters, IEEE
