Lasers and amplifiers for networks

Author

Mito, I.

Author_Institution

NEC Corp., Kawasaki, Japan

fYear

1990

fDate

25-27 July 1990

Firstpage

23

Abstract

Summary form only given. Recent progress on semiconductor laser diodes (LDs) and optical amplifiers is summarised from the viewpoint of optical network system applications. Manufacturing techniques for InGaAsP/InP have been progressing rapidly. Recent efforts have been focused on high-speed response, narrow spectral linewidth, wavelength tuning, and monolithic integration for optical devices. Larger than 20-GHz bandwidth and 18-Gb/s random pulse modulation have been reported. A tunable range of 100 AA (1.25 THz) has been reported for a three-section distributed Bragg reflector (DBR) LD. Multielectrode distributed feedback (DFB) LDs offer the possibility of very fast switching although the tuning range is limited to about 10 A. Er-doped fiber amplifiers seem to be at a more practical stage than LD amplifiers. However, LD amplifiers have a very wide gain bandwidth, which is suitable for simultaneous amplification of WDM/FDM signals. Multi-quantum-well LD amplifiers with about 20-dBm saturation output have been reported.<>

Keywords

III-V semiconductors; distributed Bragg reflector lasers; distributed feedback lasers; erbium; fibre lasers; gallium arsenide; indium compounds; laser tuning; optical communication equipment; semiconductor junction lasers; 18 Gbit/s; 20 GHz; Er doped fibre amplifiers; III-V semiconductors; InGaAsP-InP; MQW LD amplifiers; WDM/FDM signals; bandwidth; high-speed response; monolithic integration; multielectrode DFB LD; narrow spectral linewidth; optical amplifiers; optical network system applications; random pulse modulation; saturation output; semiconductor laser diodes; switching; three section DBR LD; tunable range; wavelength tuning; Bandwidth; Diode lasers; Distributed Bragg reflectors; High speed optical techniques; Laser tuning; Optical amplifiers; Optical fiber networks; Optical tuning; Semiconductor lasers; Semiconductor optical amplifiers;

fLanguage

English

Publisher

ieee

Conference_Titel

Optical Multiple Access Networks, 1990. Conference Digest. LEOS Summer Topical on

Conference_Location

Monterey, CA, USA

Type

conf

DOI

10.1109/OMAN.1990.205419

Filename

205419