A Spectral Adaptive Peak Search Method for Semiconductor Lasers
A peak search and laser technology, applied in the fields of instruments, special data processing applications, electrical digital data processing, etc., can solve the problems that the method cannot be self-adapted, the computational time overhead is large, and the robustness is poor, so as to facilitate rapid analysis and The effect of calculation, calculation time overhead is small, and calculation is simple and easy to implement
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[0053] The basic idea of the present invention is: at first studied the feature of the search object---the measured data of FP-LD and DFB-LD spectrum; Analyze and test method effects. specific,
[0054] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:
[0055] (1) Characteristics of measured data of FP-LD and DFB-LD spectra
[0056] The measured data of the spectra of the two light sources studied in the present invention have different characteristics. The FP-LD has a multi-longitudinal mode characteristic, and the DFB-LD has a single longitudinal mode characteristic in its spectrum due to the wavelength selection feedback mechanism.
[0057] At the same time, since the grating spectrometer changes the slit illuminated by polychromatic light into several monochromatic slit images through the grating spectroscopic system, the actual measured spectrum will have different spectral line broadening acc...
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