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Creators/Authors contains: "Ghaedi_Vanani, Fatemeh"

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  1. ; ; ; (, IEEE)
    We designed and fabricated a CMOS-compatible polarization beam splitter and rotator purely in Si 3 N 4 , achieving experimentally an insertion loss of ~1.5dB and a polarization extinction ratio greater than 15dB from 1280 to 1320nm. 
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    Accepted Manuscript Full Text Available
  2. ; ; ; (, Optics Letters)
    We present a few-mode frequency-modulated receiver for light detection and ranging (LiDAR). We show that using a few-mode local oscillator (LO) with spatial modes at different frequencies at the receiver can significantly improve the performance of the LiDAR detection range. A preferred receiver architecture features LO modes with unequal frequency separations based on optical orthogonal codes (OOC) to allow range detection via cross correlation. The required signal-to-noise ratio (SNR) for the frequency-modulated continuous wave (FMCW) LiDAR decreases with the number of LO modes. This receiver can have a potential impact in the area of automotive LiDARs. 
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