Title :
Terahertz-bandwidth characterization of coplanar waveguide via time-domain electro-optic sampling
Author :
Cheng, H. ; Whitaker, J.F. ; Weller, T.M. ; Katehi, L.P.B.
Author_Institution :
NSF Center for Ultrafast Optical Sci., Michigan Univ., MI, USA
Abstract :
The propagation of terahertz-bandwidth electrical pulses with low distortion has been demonstrated using an ultra-broadband coplanar waveguide fabricated on durable 1.4-/spl mu/m-thick membrane substrates. This CPW was characterized using an in situ test-signal pulse generator and an electro-optic sampling technique, which also individually resolved the propagation of even and odd mode waveforms in the time domain. The attenuation and mode-propagation characteristics for this CPW and a CPW on a GaAs substrate are compared.<>
Keywords :
electro-optical effects; membranes; time-domain analysis; waveguides; 1.4 micron; GaAs; GaAs substrate; attenuation characteristics; dielectric membrane substrates; distortion; even mode waveforms; in situ test-signal pulse generator; mode-propagation; odd mode waveforms; terahertz-bandwidth electrical pulses; time-domain electro-optic sampling; ultra-broadband coplanar waveguide; Attenuation; Biomembranes; Character generation; Coplanar waveguides; Gallium arsenide; Pulse generation; Sampling methods; Submillimeter wave propagation; Testing;
Conference_Titel :
Microwave Symposium Digest, 1994., IEEE MTT-S International
Conference_Location :
San Diego, CA, USA
Print_ISBN :
0-7803-1778-5
DOI :
10.1109/MWSYM.1994.335437
