FM and FSK response of tunable two-electrode DFB lasers and their performance with noncoherent detection

Journal Article · Fri Dec 01 00:00:00 EST 1989 · IEEE Photonics Technology Letters (Institute of Electrical and Electronics Engineers); (USA)

DOI:https://doi.org/10.1109/68.46037· OSTI ID:7029892

Willner, A E; Kuznetsov, M; Kaminow, I P; Stone, J; Stulz, L W; Burrus, C A ^[1]

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1. AT and T Bell laboratories, Crawford Hill Lab. Holmdel, NJ (US)

Two-electrode DFB lasers show promise for combining high speed and frequency tunability for FDM-FSK networks. The authors have measured the FM and FSK response of such lasers up to modulation frequencies of {approximately} GHz. Using these lasers in a noncoherent detection system in which a fiber Fabry-Perot tunable optical filter converts an FSK signal into ASK format, the authors demonstrate 10{sup {minus}9} BER up to 1 Gbit/s. Nonuniform FM response and consequent tone broadening of the optical-filtering FSK spectra can lead to system power penalties due to optical-filtering effects. Thus, for a given FM response, they can project the behavior of these lasers in FSK optical systems.

• OSTI ID: 7029892
• Journal Information: IEEE Photonics Technology Letters (Institute of Electrical and Electronics Engineers); (USA), Vol. 1:12; ISSN 1041-1135
• Country of Publication: United States
• Language: English

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