High-sensitivity semiconductor optically preamplified Q-PPM receiver

Author

Helm, P.J.S. ; Dagenais, Mario ; Krainak, Michael A. ; Leavitt, Rich

Author_Institution

Dept. of Electr. Eng., Maryland Univ., College Park, MD, USA

Volume

9

Issue

10

fYear

1997

Firstpage

1394

Lastpage

1396

Abstract

An optically preamplified receiver for 980-nm laser intersatellite communications is reported. A record sensitivity of 330 photons/bit for a semiconductor optically preamplified receiver is obtained at 50 Mb/s with quaternary pulse-position-modulation (Q-PPM). The experimental results are shown to be in excellent agreement with a novel exact calculation of the optically preamplified receiver Q-PPM bit-error rate (BER). Calculated performance based on these results shows that with an improved optical transmitter the receiver attains 1.5 dB higher sensitivity than previously achieved at this wavelength.

Keywords

high-speed optical techniques; optical receivers; pulse position modulation; quantum well lasers; satellite communication; sensitivity; 41 dB; 50 Mbit/s; 980 nm; 993 nm; InGaAs-GaAs; InGaAs-GaAs SQW SCH laser; bit-error rate; high-sensitivity; laser intersatellite communications; performance calculation; quaternary pulse-position-modulation; semiconductor optically preamplified Q-PPM receiver; Optical filters; Optical noise; Optical receivers; Optical recording; Optical saturation; Optical sensors; Optical transmitters; Preamplifiers; Semiconductor optical amplifiers; Stimulated emission;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.623274

Filename

623274