layer; and reduce the band discontinuity by changing the SEL material. CONCLUSIONThe measured frequency bandwidth of InGaAs OEMs with SELs is less than that of corresponding detectors. M eff decreases as LO frequency increases and increases as IF frequency increases. As optical power decreases, M eff also decreases. We present a circuit model of the OEM that explains the experimental results. ACKNOWLEDGMENTThe work in UF is supported by an ARO grant

The authors demonstrate a compact system for the detection of the peak wavelength value emitted by a light source. The system is composed of only two components, a graded-wavelength guided-mode resonance filter placed before a charge-coupled device sensor array. The filter provides a spatially resolved transmission minimum, the position of which is controlled by the wavelength of the incoming light. The sensor array collects the spatially resolved transmitted intensity and the wavelength is determined by recording the position of the transmission minimum along its length. Using this technique, wavelength changes as small as 0.011nm can be detected.

No abstract