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Frequency modulation responses of two-electrode distributed feedback lasers

1989; American Institute of Physics; Volume: 55; Issue: 13 Linguagem: Inglês

10.1063/1.101631

1520-8842

C.Y. Kuo, Y. Twu, Niloy K. Dutta, E. J. Wagner, S. W. Granlund,

Analytical Chemistry and Sensors

Frequency modulation (FM) response of a 1.3 μm two-electrode distributed feedback laser is studied in detail. We found that by adjusting the injection current applied to the modulated section, the FM bandwidth can be increased to a value as high as 900 MHz. However, as the bandwidth increases, the FM sensitivity decreases proportionally. This behavior is described satisfactorily by below-threshold carrier rate equation and shown to be closely related to the injected carrier lifetime.