Title :
Low drive voltage, broad-band LiNbO3 modulators with and without etched ridges
Author :
Burns, W.K. ; Howerton, M.M. ; Moeller, R.P. ; Krähenbühl, R. ; McElhanon, R.W. ; Greenblatt, A.S.
Author_Institution :
Naval Res. Lab., Washington, DC, USA
fDate :
12/1/1999 12:00:00 AM
Abstract :
Frequency dependent drive voltage is reported in velocity matched, packaged, Mach-Zehnder interferometers, made on Z-cut, Y-propagating LiNbO3, with and without etched ridges. Drive voltages of ~7 V at 40 GHz are demonstrated, with the etched ridge device showing a 1/2-1 V advantage. Microwave modeling allowed the extraction of the effects of dispersion in material properties, occurring near the acoustic resonance, on bandwidth and drive voltage
Keywords :
Mach-Zehnder interferometers; electro-optical modulation; integrated optics; lithium compounds; microwave photonics; packaging; LiNbO3; Mach-Zehnder interferometers; Z-cut Y-propagating LiNbO3; acoustic resonance; broad-band LiNbO3 modulators; drive voltage; drive voltages; etched ridge device; etched ridges; frequency dependent drive voltage; low drive voltage; microwave modeling; packaged; velocity matched; Acoustic devices; Bandwidth; Dispersion; Etching; Frequency dependence; Low voltage; Material properties; Microwave devices; Packaging; Resonance;
Journal_Title :
Lightwave Technology, Journal of
