Photorefractive Two-Beam Coupling Device Using Polymeric Materials

TAKAFUMI SASSA, TAKASHI FUJIHARA, YOSUKE TAKEDA, TSUYOSHI MUTO, SHINSUKE UMEGAKI, and TATSUO WADA

Two-beam coupling devices with two input ports for a signal beam were fabricated using photorefractive polymeric materials. By switching the input port, two-mode operation of a signal was demonstrated, i.e. the passive control with a fanning beam and the active control with a pump beam.