[OPTICAL REVIEW Vol. 1, No. 1 (1994) 8-11]
Optical Information Processing by Synthesis of the Coherence Function-Selective Masking of 2-D Information by Synthesis of Notch-Shaped Coherence Function?
Toru OKUGAWA and Kazuo HOTATE
Research Center for Advanced Science and Technology, The University of Tokyo, 4-6-1, Komaba, Meguro-ku, Tokyo 153, Japan
(Accepted July 1, 1994)
We have proposed an optical information processing system adopting synthesis of the optical coherence function by using direct frequency-modulation of a laser diode.1) Optical coherence function having notch shape is discussed theoretically and experimentally. Applying the notch shaped coherence function to this system, to mask selectively a two-dimensional (2-D) information from a three-dimensional (3-D) object can be carried out. After showing the experimental results on selective masking, the performance deterioration factors are discussed in detail.
Key words : optical information processing, optical coherence function, direct frequency modulation of a laser diode, holography