Accession Number : ADP008107

Title :   Vectorial Simulation of Passive Mode Converter Devices on InP,

Corporate Author : HEINRICH-HERTZ-INST FUER NACHRICHTENTECHNIK BERLIN G M B H (GERMANY F R)

Personal Author(s) : Weinert, C. M. ; Heidrich, H.

Report Date : APR 1992

Pagination or Media Count : 2

Abstract : First passive TE/TM-mode converters on InP have been published recently using InP/GaInAsP(lambda sub Q = 1.3 micrometer) rib waveguides periodically and asymmetrically loaded with a lambda sub Q = 1.3 micrometers-layer on top of the waveguide (MC1) or on top and at one side of the waveguide (MC2). An alternative approach is to use a stepped waveguide layer (MC3). The waveguide cross sections of the mode converter designs MC1, MC2, and MC3 are schematically shown. Common to all structures are periodically arranged waveguide sections of length Lambda/2 which alternatively have a perturbed geometry on the left and right hand side. Lambda is the TE/TM best length of the structure. The change in geometry enables the coupling to the orthogonal polarization at the junction of two sections.

Descriptors :   *PHOTONICS, *INDIUM PHOSPHIDES, *VECTOR ANALYSIS, *PHOTONICS, *SYMPOSIA, GERMANY, WAVEGUIDES, POLARIZATION, SIMULATION, EIGENVALUES, WAVE EQUATIONS.

Subject Categories : Fiber Optics and Integrated Optics
      Inorganic Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE