High-power 1310 nm DFB lasers for AM video transmission

Author

Blauvelt, Henry ; Chen, P.C. ; Bar-chaim, Nadav ; Jiang, Paul ; Lii, C.J. ; Ury, Israel

Author_Institution

Ortel Corp., Alhambra, CA, USA

Volume

10

Issue

11

fYear

1992

fDate

11/1/1992 12:00:00 AM

Firstpage

1766

Lastpage

1772

Abstract

Increasing the output power of linear DFB lasers is an effective method for increasing the optical loss budget of AM fiber-optic links. For systems using 1310-nm zero dispersion fiber, 1310-nm lasers are preferred to avoid distortion resulting from the combination of dispersion and laser chirp. Increased optical budgets can be used to increase span lengths or to use optical splitting. Results are presented for an 18-mW linear laser. Using 62-channel loading, a C/N of 59.5 dB was achieved for a 20-km link with 9-dB optical loss. For 20-dB optical loss, a C/N of 50.5 dB was achieved. The current status of high-power lasers and the fundamental and practical limits for further increases in power are discussed. Optoelectronic repeaters using high-power lasers are shown to be an effective alternative to optical amplifiers for broadcast AM video distribution

Keywords

amplitude modulation; distributed feedback lasers; optical communication equipment; optical links; optical losses; optical modulation; semiconductor lasers; video signals; 1310 nm; 18 mW; 20 dB; 20 km; 62-channel loading; 9 dB; AM fiber-optic links; AM video transmission; IR; broadcast AM video distribution; high power laser diodes; laser chirp; linear DFB lasers; optical amplifiers; optical dispersion; optical loss; optical loss budget; optical splitting; optoelectronic repeaters; output power; span lengths; zero dispersion fiber; Chirp; Fiber lasers; Laser noise; Optical distortion; Optical fiber losses; Optical losses; Power generation; Power lasers; Repeaters; Stimulated emission;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.184922

Filename

184922