Monolithic integration of an InP based polarization diversity heterodyne photoreceiver with electrooptic adjustability

Author

Ghirardi, F. ; Bruno, A. ; Mersali, B. ; Brandon, J. ; Giraudet, L. ; Scavennec, A. ; Carenco, A.

Author_Institution

Lab. de Bagneux, CNET, Bagneux, France

Volume

13

Issue

7

fYear

1995

fDate

7/1/1995 12:00:00 AM

Firstpage

1536

Lastpage

1549

Abstract

In this paper we describe the monolithic integration, in the InP/InGaAsP material system, of a polarization diversity optical heterodyne receiver. The study concerns different components which are part of the device: polarization splitters, adjustable 3 dB TE and TM directional couplers, waveguide integration with PIN photodiodes, modal tapers, and JFET´s. All these devices are developed in a compatible integration approach, as building blocks of the overall device. Eventfully, two circuit demonstrators-a polarization-diversity optical circuit integrated with two balanced-PIN pairs and a coupler integrated with a balanced-PIN pair and JFET amplifier-are presented. These two circuits show very good characteristics in terms of internal loss, rejection ratio, electrical bandwidth, and input noise, similar to hybrid circuits. This work paves the way for the use of complex integrated photoreceivers for system application

Keywords

III-V semiconductors; JFET integrated circuits; demodulation; electro-optical modulation; gallium arsenide; gallium compounds; indium compounds; integrated optoelectronics; light polarisation; optical directional couplers; optical losses; optical noise; optical receivers; p-i-n photodiodes; InP based polarization diversity heterodyne photoreceiver; InP-InGaAsP; InP/InGaAsP material system; JFET amplifier; PIN photodiodes; balanced-PIN pairs; circuit demonstrators; complex integrated photoreceivers; directional couplers; electrical bandwidth; electrooptic adjustability; hybrid circuits; input noise; internal loss; modal tapers; monolithic integration; polarization diversity optical heterodyne receiver; polarization splitters; polarization-diversity optical circuit; rejection ratio; system application; waveguide integration; Directional couplers; Indium phosphide; Integrated optics; Monolithic integrated circuits; Optical materials; Optical mixing; Optical noise; Optical polarization; Optical receivers; Tellurium;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.400722

Filename

400722