Patent ID: 6504042
Filing Date: 2003-01-07
Classification: G02F

Abstract:
The non-linearly optical structural element, selected from the group consisting of opto-optical couplers, Mach-Zehnder interferometers, mode selective couplers and prism couplers, which comprises an optical waveguide comprising a spiro compound of the formula (I) in which &psgr; is C, Si, Ge or Sn, and K1 and K2 independently of one another are conjugated systems or a conjugated polymer, comprising repeating units of the formula (VI), in which the symbols and indices have the following meanings:m and n are 0, 1, 2, or 3; &psgr; is Sn, Ge, Si or C; D, E, F and G are identical or different and are â€”CR1R2â€”, â€”Oâ€”, â€”Sâ€”, â€”NR3â€” or a chemical bond; in which R1, R2 and R3 are C1-C20-alkyl or H, and in which R1 and R2 together can form an optionally substituted cycloalkyl ring; U is â€”CR4&boxH;CR5â€” or a chemical bond; V has the meaning of U or is â€”CR1R2â€”, â€”Oâ€”, â€”Sâ€”, â€”NR3â€”, â€”SiR1R2â€”, â€”SO2â€”, â€”SOâ€” or â€”COâ€”, in which R1, R2 and R3 have the above-mentioned meaning and R4 and R5 have the meaning of R1, R2 and R3 or are fluorine or CF3; A is hydrogen, C1-C20â€”, alkyl, which can also contain heteroatoms; R6 and R7 are hydrogen or a C1-C20-hydrocarbon radical, which can be aliphatic, aromatic, linear, branched or alicyclic, in which R6 together with R7 can form a ring, T is â€”Oâ€”, â€”Sâ€”, â€”NR3â€”, â€”CR1R2â€”, â€”CH&boxH;Nâ€”, â€”CA&boxH;CAâ€”, â€”CH&boxH;CAâ€”, â€”CH&boxH;CFâ€” or â€”CF&boxH;CFâ€”, in which R1, R2, R3 and A have the above-mentioned meaning, K, L, M and Q are identical or different hydrocarbon radicals which contain conjugated electron systems and can contain heteroatoms, where K, L, M and Q, with the particular groups A in the ortho-position, can also be closed together to form a ring, which is saturated, partly unsaturated or unsaturated to the maximum degree, L, M can also be H, a non-conjugated hydrocarbon radical, preferably containing 1 to 20 carbon atoms, which can contain hetero atoms, halogen, CN, NO2, an amino, alkylamino or dialkylamino group.