Modal dispersion phase matching over 7 mm length in overdamped polymeric channel waveguides

Abstract

First-order quasi-phase matched LiNbO 3 waveguide periodically poled by applying an external field for efficient blue second-harmonic generation Applied Physics Letters 62, 435 (1993);

Proposal and analysis of a silica fiber with large and thermodynamically stable second order nonlinearity

“…͑6͒, we assume the following. ͑1͒ Phase matching is satisfied ͑this can be accomplished through modal dispersion matching, 13 by controlling the dimension and the index profile of the nonlinear fiber͒; ͑2͒ the polarization selection rule, i.e., Eq. ͑5͒, is satisfied; ͑3͒ the nonlinear fiber possesses a length of L and an effective modal area of a 2 ; ͑4͒ undepleted pump; ͑5͒ the loss in the nonlinear material can be neglected; ͑6͒ the nonlinear coating possesses a thickness of ␦ and its ͑2͒ tensor is dominated by the rrr ͑2͒ component; ͑7͒ the optical field intensity within the nonlinear coating can be approximated by the average field intensity within the silica core.…”

<title>Quasi-phase-matched NLO waveguides using periodically corona-poled liquid crystalline polymers</title>

“…2,0 The authors acknowledge the support of the Bundesministerium für Bildung und Forschung, grant # 13N7023. We also thank Prof. K. Petermann (Fachgebiet Hochfrequenztechnik, TU-Berlin) for using the clean room, RIE-and wet etching facilities and Dr. Rübner (Inst.…”

Third Order Mode Optically Pumped Semiconductor Laser for an Integrated Twin Photon Source in Quantum Optics

“…However, 111-V semiconductors are not birefringent and alternative phase matching schemes have to be used [5]. Among the different phase matching schemes, modal dispersion phase matching (MDPM) [6,7] is attractive because it is well suited for materials grown by molecular beam epitaxy (MBE) due to the control of the layer thickness homogeneity up to the atomic level. In this method phase matching is obtained by a careful design of a multilayer waveguide in which the effective indices neff of three different guided modes i, j and k satisfy the MDPM condition: neffi The purpose of this study is to show that a QW emitter can be used inside this waveguide as a source at ow,, leading to lasing action on the third order mode, thus well suited for phase matched PF inside the laser cavity.…”