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    • 6. 发明授权
    • Multi-section electro-optical monolithic component
    • 多段电光单片组件
    • US06208794B1
    • 2001-03-27
    • US09411981
    • 1999-10-04
    • Franck MallecotChristine ChaumontArnaud LeroyAntonina PlaisHisao Nakajima
    • Franck MallecotChristine ChaumontArnaud LeroyAntonina PlaisHisao Nakajima
    • G02B610
    • G02B6/4246G02B6/12004G02B2006/12121G02B2006/12123H01S5/0262
    • A semiconductor electro-optical monolithic component includes at least first and second sections (20, 30) each having respectively a first wave guide (21) and a second wave guide (31) transmitting light, the wave guides being etched in the form of strips and confined between an upper cladding layer (11) doped with carriers of a first type and a lower layer (10A, 10B) doped with carriers of a second type, a third section (40) being disposed between the first and second sections (20, 30) and having a third guide not transmitting light, the third guide being disposed so as to couple the first guide (21) to the said second guide (31). An absorbent layer (70), having a photoluminescence wavelength at least equal to the smallest wavelength of the waves propagating in the first and second wave guides (21, 31), is placed in the said lower layer (10A, 10B) doped with carriers of the second type; the said lower layer (10A, 10B) having an index lower than that of the absorbent layer (70) and that of the said second and third guides (31).
    • 半导体电光单片部件至少包括分别具有第一波导(21)和第二波导(31)的第一和第二部分(20,30),所述第一波导(21)和第二波导(31)透射光,所述波导以带状 并且限制在掺杂有第一类型的载流子的上覆层(11)和掺杂有第二类型载体的下层(10A,10B)之间,第三部分(40)设置在第一和第二部分(20)之间 ,30)并且具有不透光的第三引导件,所述第三引导件设置成将所述第一引导件(21)联接到所述第二引导件(31)。 具有至少等于在第一和第二波导(21,31)中传播的波的最小波长的光致发光波长的吸收层(70)放置在掺杂载体的所述下层(10A,10B)中 的第二种类型 所述下层(10A,10B)的折射率低于吸收层(70)和所述第二和第三导向件(31)的折射率。