Efficient vertical coupling of photodiodes to InGaAsP rib waveguides
Deri, R. J. ; Doldissen, W. ; Hawkins, R. J. ; Bhat, R. ; Soole, J. B. D. ; Schiavone, L. M. ; Seto, M. ; Andreadakis, N. ; Silberberg, Y. ; Koza, M. A.
Woodbury, NY : American Institute of Physics (AIP)
Published 1991
Woodbury, NY : American Institute of Physics (AIP)
Published 1991
| ISSN: |
1077-3118
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| Source: |
AIP Digital Archive
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| Topics: |
Physics
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| Notes: |
We demonstrate vertical integration of InGaAs mesa photodiodes with InGaAsP rib waveguides employing an intermediate optical impedance matching layer. The diode length necessary for 90% light absorption at 1.52 μm wavelength was 42 μm, a threefold reduction in diode length with respect to previous work employing similar waveguides without a matching layer. The quantum efficiency was observed to be almost independent of the optical wavelength and polarization. The influence of spatial transient intensity redistribution effects on these devices is investigated in detail.
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| Type of Medium: |
Electronic Resource
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| URL: |