The two peaks characteristic of yellow and blue light in the spectrum of Oven Control Knob dual-wavelength white light emitting diodes (LEDs) introduce distinctive features to the interference signal of white light scanning interferometry (WLSI).The distinctive features are defined as discontinuities, so that the fringe contrast function cannot be
Improvement on Direct Modulation Responses and Stability by Partially Corrugated Gratings Based DFB Lasers With Passive Feedback
DFB lasers with ultrashort cavities or integrated DFB lasers with passive waveguide reflectors are frequently proposed to realize directly modulated lasers (DMLs) for carrying ultrahigh data rate signals.The former suffers from poor heatsink and laser cleavage yield, while the single-mode stability of the latter scheme is seldom addressed.The mode
Solving the Axisymmetric Inverse Heat Conduction Problem by a Wavelet Dual Least Squares Method
We consider an axisymmetric inverse heat conduction Spoon problem of determining the surface temperature from a fixed location inside a cylinder.This problem is ill-posed; the solution (if it exists) does not depend continuously on the data.A special project method—dual least squares method generated by the SHINE HAIR SPRAY family of Shannon