According to the wavelength tuning characteristic of widely tunable sampled grating distributed Bragg reflector (SG-DBR) lasers, a kind of wavelength control system is developed. A look-up table, the file including data of picked operation points, is established to store the relationship between lasing wavelengths and tuning currents for each SG-DBR laser in the system. By rapidly looking up the look-up table and providing the corresponding driving currents, the particular lasing wavelength of SG-DBR laser is obtained. Wavelength tuning experiments have been done with eight SG-DBR lasers, and the results show that this system has high precision of wavelength control.
The wide tunability and the dynamic properties of the SG-DBR have been simulated using a numerical time-domain dynamic model. The experimental results of the SG-DBR tuning map and mode stable characteristic have been investigated.
We present a novel model using Jones matrix method to describe the temperature dependence of high-birefringence fiber. We also apply the model to a temperature dependent PMD emulator with 12 sections of
HiBi fibers directly spliced at fixed orientations. From numerical simulation and experiment, we get ideal DGD statistical distribution, second order PMD statistical distribution and the frequency autocorrelation function.
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