Two-dimensional optical signal-processing beamformer using multilayer polymeric optical waveguide arrays

Optically controlled beamforming techniques are very effective for phased-array antenna control. We have developed a two-dimensional (2-D) Fourier transform optical signal-processing (OSP) beamformer. In the OSP beamformer, we use multilayer polymeric optical waveguide arrays to generate and control a 2-D specific phase-front and sample 2-D distributed light beams. These multilayer optical waveguide arrays consist of three layers and 13 waveguides; each layer has four, five, and four waveguides, respectively. We experimentally demonstrate 2-D beam steering in the X-band, and show the feasibility of the 2-D OSP beamformer.

[1]  Yoshio Karasawa,et al.  Receive mode of optical signal processing multibeam array antennas , 1998 .

[2]  Keizo Inagaki,et al.  MULTIBEAM OPTICAL SIGNAL PROCESSING ARRAY ANTENNA USING OPTICAL WAVEGUIDE ARRAYS AND LENS , 2000 .

[3]  Yoshio Karasawa,et al.  Frequency Characteristics of a Beamforming Network of an Optically Controlled Array Antenna and Its Radiation Pattern Measurements (Special Issue on Optomicrowave Techniques and Their Applications) , 1996 .

[4]  R. Miura,et al.  Optical processor for multibeam microwave array antennas , 1996 .

[7]  Koji Enbutsu,et al.  Polymeric optical waveguide films for short-distance optical interconnects , 1999 .

[8]  M. Saruwatari,et al.  Semiconductor laser to single-mode fiber coupler. , 1979, Applied optics.

[9]  D. C. D. Chang,et al.  Antenna Beamforming Using Optical Processing , 1988, Photonics West - Lasers and Applications in Science and Engineering.

[10]  Gerhard A. Koepf,et al.  Optical Processor For Phased-Array Antenna Beam Formation , 1984, Other Conferences.

[11]  A. Kumar,et al.  Antenna design with fiber optics , 1996 .

[12]  P. J. Matthews,et al.  Practical photonic beamforming , 1999, International Topical Meeting on Microwave Photonics. MWP'99. Technical Digest (Cat. No.99EX301).

[13]  Wataru Chujo,et al.  Beam scanning characteristics of an optically controlled array antenna fed by a fiber optic array , 1996 .

[14]  Keizo Inagaki,et al.  Beam-steering and multibeam formation of Ku-band phased array antenna using optical signal processing beam-forming network , 1999, International Topical Meeting on Microwave Photonics. MWP'99. Technical Digest (Cat. No.99EX301).

[15]  Yasuhiro Ando,et al.  Basic Evaluation of Polymeric Optical Waveguide Films Applied to Optical Interconnections , 1998 .