Title :
Demonstration of a photonically controlled RF phase shifter
Author :
Lee, Sang-Shin ; Udupa, Anand H. ; Erlig, Hernan ; Zhang, Hua ; Yian Chang ; Zhang, Cheng ; Chang, Yian ; Bhattacharya, Daipayan ; Tsap, Boris ; Steier, William H. ; Dalton, Larry R. ; Fetterman, Harold R.
Author_Institution :
LG Corp. Inst. of Technol., Seoul, South Korea
fDate :
9/1/1999 12:00:00 AM
Abstract :
Integrated photonic radio frequency (RF) phase shifters with dc voltage control have been realized using a nested dual Mach-Zehnder modulator configuration in a new nonlinear optical polymer, CLD2-ISX. These modulators have a Vπ of 10.8 V and exhibit excellent frequency performance measured up to 20 GHz. A near linear phase shift exceeding 108° was obtained for a 16-GHz microwave signal by tuning the dc control voltage over a 7.8-V range. It is expected that these integrated polymer phase shifters will find widespread applications in new types of lightweight optically controlled phased array systems
Keywords :
electro-optical modulation; integrated optics; microwave phase shifters; microwave photonics; optical control; optical polymers; 10.8 V; 16 to 20 GHz; CLD2-ISX; DC voltage control; RF phase shifter; integrated device; microwave signal; nested dual Mach-Zehnder modulator; nonlinear optical polymer; photonic control; Frequency measurement; Integrated optics; Optical arrays; Optical control; Optical polymers; Optical tuning; Phase shifters; Phased arrays; Radio frequency; Voltage control;
Journal_Title :
Microwave and Guided Wave Letters, IEEE
