Monolithic integrated coherent receiver on InP substrate

Author

Takeuchi, H. ; Kasaya, K. ; Kondo, Y. ; Yasaka, H. ; Oe, K. ; Imamura, Y.

Author_Institution

NTT Opto-Electron. Lab., Kanagawa, Japan

Volume

1

Issue

11

fYear

1989

Firstpage

398

Lastpage

400

Abstract

The fabrication of a monolithic integrated coherent receiver with a wavelength-tunable DFB laser as local oscillator, a 3-dB waveguide directional coupler for mixing, and p-i-n photodiodes for detection is discussed. Optical heterodyne detection with a clear beat signal was experimentally observed using this monolithic integrated coherent receiver. Since an n-type substrate was used in this device, the two p-i-n photodiodes were not implemented in a balanced mixer configuration. Balanced mixing might be possible if the same structure were fabricated on a semi-insulating substrate. The results obtained suggest the possibility of applying this type of monolithic integrated coherent receiver to optical communication systems.<>

Keywords

directional couplers; distributed feedback lasers; indium compounds; infrared detectors; integrated optoelectronics; optical communication equipment; optical couplers; p-i-n diodes; photodiodes; receivers; semiconductor junction lasers; III-V semiconductor; InP; InP substrate; balanced mixer configuration; clear beat signal; local oscillator; mixing; monolithic integrated coherent receiver; n-type substrate; optical communication systems; optical heterodyne detection; p-i-n photodiodes; waveguide directional coupler; wavelength-tunable DFB laser; Directional couplers; Indium phosphide; Integrated optics; Local oscillators; Optical device fabrication; Optical mixing; Optical receivers; Optical waveguides; PIN photodiodes; Waveguide lasers;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.43392

Filename

43392