Title :
Broad-band reflection traveling-wave LiNbO3 modulator
Author :
Burns, W.K. ; Howerton, M.M. ; Moeller, R.P. ; Greenblatt, A.S. ; McElhanon, R.W.
Author_Institution :
Naval Res. Lab., Washington, DC, USA
fDate :
6/1/1998 12:00:00 AM
Abstract :
A velocity matched traveling-wave Mach-Zehnder interferometer (MZI) in LiNbO/sub 3/ operating in reflection, is reported and drive voltages are compared to those for single-pass devices of the same length. The device achieves double-pass operation by simultaneously reflecting the optical and RF waves, Broad-band operation to 20 GHz with drive voltages from 0.5 to 1 V (<0.5 GHz) to /spl sim/4.5 V (at 20 GHz) is observed with the reflection device. This performance is superior to that of the single-pass device, which has drive voltages of 2.1 V (dc) to /spl sim/4.5 V (at 20 GHz).
Keywords :
Mach-Zehnder interferometers; electro-optical modulation; integrated optics; lithium compounds; reflectivity; 0.5 to 1 V; 2.1 V; 4.5 V; LiNbO/sub 3/; RF wave reflection; broad-band operation; broad-band reflection traveling-wave LiNbO/sub 3/ modulator; double-pass operation; drive voltages; optical wave reflection; reflection; reflection device; simultaneously reflecting; single-pass devices; velocity matched traveling-wave Mach-Zehnder interferometer; Electrodes; Interferometers; Optical buffering; Optical devices; Optical interferometry; Optical modulation; Optical reflection; Optical waveguides; Radio frequency; Voltage;
Journal_Title :
Photonics Technology Letters, IEEE
