公开(公告)号：WO2009022361A1

公开(公告)日：2009-02-19

申请号：PCT/IT2007000587

申请日：2007-08-14

Applicant: SELEX SISTEMI INTEGRATI SPA ,  DISPENZA MASSIMILIANO ,  FIORELLO ANNA MARIA ,  VARASI MAURO

Inventor： DISPENZA MASSIMILIANO ,  FIORELLO ANNA MARIA ,  VARASI MAURO

IPC: G02F1/225 ,  G02F2/02

CPC classification number: G02F1/225 ,  G02F1/0316 ,  G02F2/02 ,  G02F2202/07 ,  Y10T29/49117

Abstract: Disclosed herein is an optical frequency shifter (1) provided with: an electro-optical substrate (3) having a main surface (3a); an optical waveguide structure (2) formed in the substrate (3) and having two waveguide portions (7), which are spaced apart by a distance (S) such as to ensure mutual optical coupling therebetween; and an electrode structure (10) arranged above the main surface (3a) of the substrate (3) and having at least a first electrode (11). The substrate (3) has a Z-cut crystalline structure with Z crystal axis orthogonal to the main surface (3a) and comprises two oppositely poled portions (20, 21) having opposite orientations of the Z crystal axis; the two waveguide portions (7) are arranged underneath the first electrode (11), each in a respective one of the two oppositely poled portions (20, 21).

Abstract translation: 本文公开了一种光学移频器（1），其具有：具有主表面（3a）的电光基板（3）; 形成在所述基板（3）中并且具有两个间隔开距离（S）的两个波导部分（7）的光波导结构（2），以确保它们之间的相互光耦合; 以及布置在所述基板（3）的主表面（3a）上方并且具有至少第一电极（11）的电极结构（10）。 所述基板（3）具有与所述主表面（3a）正交的Z晶轴的Z切割晶体结构，并且包括具有与所述Z晶轴相反取向的两个相对极化部分（20,21）。 两个波导部分（7）被布置在第一电极（11）的下方，每个在两个相对极化部分（20,21）中的相应一个中。

公开(公告)号：WO2009022361A8

公开(公告)日：2009-02-19

申请号：PCT/IT2007/000587

申请日：2007-08-14

Applicant: SELEX SISTEMI INTEGRATI S.P.A. ,  DISPENZA, Massimiliano ,  FIORELLO, Anna Maria ,  VARASI, Mauro

Inventor： DISPENZA, Massimiliano ,  FIORELLO, Anna Maria ,  VARASI, Mauro

IPC: G02F1/225 ,  G02F2/02

Abstract: Disclosed herein is an optical frequency shifter (1) provided with: an electro-optical substrate (3) having a main surface (3a); an optical waveguide structure (2) formed in the substrate (3) and having two waveguide portions (7), which are spaced apart by a distance (S) such as to ensure mutual optical coupling therebetween; and an electrode structure (10) arranged above the main surface (3a) of the substrate (3) and having at least a first electrode (11). The substrate (3) has a Z-cut crystalline structure with Z crystal axis orthogonal to the main surface (3a) and comprises two oppositely poled portions (20, 21) having opposite orientations of the Z crystal axis; the two waveguide portions (7) are arranged underneath the first electrode (11), each in a respective one of the two oppositely poled portions (20, 21).