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Proceedings Paper

ASK transmitter for high-bit-rate systems
Author(s): Gert Schiellerup; Rune J. S. Pedersen
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Paper Abstract

A narrow spectrum transmitter based on a directly modulated DFB laser and FM to AM conversion in a common path interferometer has been investigated theoretically and experimentally. The DFB-LD is locked to the interferometer with a new pattern independent locking scheme in order to give a high extinction ratio of the ASK signal. Experimentally a -20 dB spectral width of 7. 5 GHz 0. 06 nm for a 2. 5 Gbitls ASK signal was obtained using an interferometer with an extinction ratio in excess of 25 dB. The transmitter performance was tested in a direct detection system giving a receiver sensitivity of -28 dBm. I.

Paper Details

Date Published: 1 January 1991
PDF: 12 pages
Proc. SPIE 1372, Coherent Lightwave Communications: Fifth in a Series, (1 January 1991); doi: 10.1117/12.24906
Show Author Affiliations
Gert Schiellerup, Technical Univ. of Denmark (Denmark)
Rune J. S. Pedersen, Technical Univ. of Denmark (Denmark)


Published in SPIE Proceedings Vol. 1372:
Coherent Lightwave Communications: Fifth in a Series
Harish R. Sunak; Roger C. Steele, Editor(s)

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