Title :
40-GHz polymer electrooptic phase modulators
Author :
Wenshen Wang ; Datong Chen ; Fetterman, H.R. ; Yongqiang Shi ; Steier, W.H. ; Dalton, L.R.
Author_Institution :
Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA
fDate :
6/1/1995 12:00:00 AM
Abstract :
A broad-band high-frequency traveling wave electrooptic phase modulator made from stable nonlinear optical polymers has been tested. Using a 1.319-μm light source, single-mode operation was achieved with high-input optical power, resulting in improved modulation depths and signal-to-noise ratios. The high-frequency optical modulation was observed up to 40 GHz using external microwave mixers. Direct optical-heterodyne detection of electrooptic phase modulation has also been demonstrated with high sensitivity at 40 GHz. The devices were tested with 105 W/cm2 power density for 21 hours, and have showed no observable decay in nonlinearity.
Keywords :
electro-optical modulation; light sources; optical polymers; phase modulation; 1.319 mum; 24 h; 40 GHz; broad-band high-frequency traveling wave electrooptic phase modulator; direct optical-heterodyne detection; electrooptic phase modulation; external microwave mixers; high-frequency optical modulation; high-input optical power; light source; modulation depths; nonlinearity; power density; signal-to-noise ratios; single-mode operation; stable nonlinear optical polymers; Light sources; Microwave devices; Nonlinear optical devices; Nonlinear optics; Optical modulation; Optical polymers; Optical sensors; Phase modulation; Signal to noise ratio; Testing;
Journal_Title :
Photonics Technology Letters, IEEE
