Quadrant detector based on InGaAsP heterostructures

Valerian Dorogan; Vladimir I. Brynzari; Tatiana Vieru; V. Kosyak

doi:10.1117/12.312709

2 July 1998 Quadrant detector based on InGaAsP heterostructures

Valerian Dorogan, Vladimir I. Brynzari, Tatiana Vieru, V. Kosyak

Proceedings Volume 3405, ROMOPTO '97: Fifth Conference on Optics; (1998) https://doi.org/10.1117/12.312709
Event: ROMOPTO '97: Fifth Conference on Optics, 1997, Bucharest, Romania

Abstract

A new device called selective quadrant-detector, realized on the basis of InGaAsP heterostructures, is presented in the paper. It consists of a circular photodiode-quadrant with protective peripheric ring, having selective sensibility optimized for (lambda) equals 1.06 micrometers , in the center of which a photodetector integrated in the same crystal is formed. The photodetector has own capacity C equals 1 - 5 pF and can be used for receiving the high frequency (f > 1 GHz) optic signals and the small duration (t <EQ 1 ns) unitary signals. The presence of central photodetector decreases the coordinate characteristic abruptness (K equals 8(DOT)10³ V(DOT)W^-1(DOT)mm^-1(and photocurrent intensity with 8 - 10%. Absolute spectral sensibility is S_(lambda equals1.06) equals 0.57 A/W and photosensibility spectrum semiwidth is (Delta) (lambda) <EQ 100 nm.

Citation Download Citation

Valerian Dorogan, Vladimir I. Brynzari, Tatiana Vieru, and V. Kosyak "Quadrant detector based on InGaAsP heterostructures", Proc. SPIE 3405, ROMOPTO '97: Fifth Conference on Optics, (2 July 1998); https://doi.org/10.1117/12.312709

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