公开(公告)号：JPH08118497A

公开(公告)日：1996-05-14

申请号：JP30113094

申请日：1994-12-05

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： TEI SOUTON ,  SOU SHIYAKUKO

IPC: G02B1/04 ,  B29D11/00 ,  C08F2/18 ,  C08F8/36 ,  C08F12/00 ,  C08F212/00 ,  C08F212/02 ,  C08F212/36 ,  C08J7/00 ,  G02B3/00

Abstract: PURPOSE: To easily obtain the optimum refractive-index distribution by enabling the estimation to refractive-index distribution by properly regulating the diffusion time of sulfonic acid by sulfonating a swollen crosslinked polymer using a sulfonic acid soln. CONSTITUTION: A hydrophobic aromatic monomer capable of being sulfonated is mixed with a crosslinking agent and a polymn. initiator to be subjected to suspension polymn. to form a rectangular crosslinked polymer having uniform refractive-index distribution and the formed crosslinked polymer is immersed in a solvent to be swollen. The swollen crosslinked polymer is immersed in sulfonic acid held to a predetermined temp. of about 70-100 deg.C to be sulfonated so as to have refractive-index distribution such that a refractive index is highest at the center part of a rectangle and decreases gradually as going away from the center part. Since the refractive-index distribution is determined by the diffusion of sulfonic acid, the estimation and control to the refractive-index distribution become easy.

公开(公告)号：JPH08136775A

公开(公告)日：1996-05-31

申请号：JP31386294

申请日：1994-12-16

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： SOU SHIYAKUKO ,  TEI SOUTON

IPC: G02B6/42 ,  G02B6/12 ,  G02B6/28 ,  G02B6/43 ,  G06E3/00 ,  H01L27/15

Abstract: PURPOSE: To provide a high function of backboard optical signal coupling system having optical power distribution homogeneity within 1% and an overall distribution rate of 99% by applying the constitution that an input optical signal is distributed from an input optical fiber array to a processor board through a condenser grid connector array laid in an optical waveguide. CONSTITUTION: This module is formed out of a glass substrate 11, an input optical fiber array 12, a photo diode 13, a processor board 14, an optical waveguide 15. and a condenser grid connector array 16. The glass substrate 11 is laid on the upper surface of the optical waveguide 15, so that a signal inputted through the optical fiber array 12 is transmitted to the glass substrate 11 for distributing signals from a condenser grid connector array (FGC1, FGC2 and FGCN) 16. Also, the condenser grid connector is laid on the lower surface of the optical waveguide 15. In other words, constitution is so made that an optical signal inputted from the input optical fiber array 12 is distributed to the processor board 14 via the condenser grid connector array 16 laid in the optical wave guide 15.