公开(公告)号：JPH08166607A

公开(公告)日：1996-06-25

申请号：JP30931294

申请日：1994-12-13

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： TEI SHIYOUJIYUTSU ,  KAKU SHIYOUKUN ,  RI KAZUTSUNE

IPC: G02F1/03 ,  G02F1/01 ,  G02F1/35 ,  G02F3/00

Abstract: PURPOSE: To provide a wavelength-division reverse multiplexing element expectable as giving high polarization rotating efficiency under the reduction of an energy loss, and capable of narrowing the peak line width of a reflected beam. CONSTITUTION: This reverse multiplexing element is structured to include the first mirror layer 20 used as a lower mirror layer formed on a substrate, with a medium having a small refraction factor and a medium having a large refraction factor alternately stacked, the second mirror layer 40 used as an upper mirror layer, with a medium having a large refraction factor and a medium having a small refraction factor alternately stacked, and an intermediate layer 30 made of a Kerr medium formed between the first mirror layer 20 and the second mirror layer 40. Also, the first mirror layer 20 is formed to have a relatively large refraction factor for the second mirror layer 40.