Chip-size wavelength detectors
Chip-size wavelength detectors will be described that are capable of resolving the spectrum of the incident light with high accuracy over a broad spectral range. These devices can be configured either as compact spectrometers or precise wavelength shift detectors. Applications that are anticipated to benefit from the spectrometers include reagentless optical detection for class identification of biomolecules and chemicals in fluidic and aerosol samples. The wavelength shift detectors are applicable for any optical sensor in which a stimulus (e.g., temperature, strain, PH-value, etc.) results in a wavelength shift of an optical output signal, such as the interrogation system for Fiber Bragg Grating sensors, photonic crystal sensors, Fabry-Perot type sensors, and sensors in which an analyte influences a laser cavity and thereby its emission wavelength.
Schmidt, O. ; Kiesel, P. ; Bassler, M. ; Johnson, N. M. Chip-size wavelength detectors. International Journal of High Speed Electronics and Systems. 2007 December; 17 (4): 661-670.