Measurement of laser parameters for simulation of high-speed fiberoptic systems

Precise measurement of semiconductor laser chirp using effect of propagation in dispersive fiber and application to simulation of transmission through fiber gratings

“…A more convenient method, however, is to introduce some optical filtering to convert part of the frequency modulation (FM) to intensity modulation (IM) so that it can be photodetected. Propagation through dispersive optical fiber can be used to produce this filtering [10]- [14].…”

“…Recently, it has been demonstrated that the frequency modulation to intensity modulation (FM-to-IM) conversion effect due to propagation in dispersive optical fiber can be used to measure conveniently the linewidth enhancement factor and crossover frequency of the laser [10]- [14]. In careful examination of data we have obtained with this technique, however, we have found that although a good fit to theory (and hence a small variance for the parameters) can be obtained when fitting results for a single length of fiber, for some lasers a large variation of the parameters can occur for results obtained with different lengths of fiber.…”

Transmission of Light Intensity Modulation Signals in Analog Fiber-Optic Links

“…On the other hand, if there were no frequency chirp, the amplitude of the phase modulation M (7), and hence, U n (16) (25) where l =1, 2, 3..., are not subjected to the harmonic distortions (in the first order in the depth of modulation m). The modulus of transfer function for these signals is equal to unity, that is the power of signals at the input and at the output of the fiber are equal to each other (without attenuation in the fiber).…”

Optical and Electrical Spectrum Analysis of Optoelectronic Devices

“…When a single-mode laser is modulated at ω m , the electrical field can be written as (Henery et al, 1989;Bjerkan et al, 1996) …”