Time Delay Multiplexing of Optical Spectra with a Fiber Optic Array
Citation
Whitten, W. B. Time Delay Multiplexing of Optical Spectra with a Fiber Optic Array. Analytical Chemistry, [Volume and Issue Number Not Found], [Page Numbers Not Found], 1980.
Keywords
- Time delay multiplexing
- Optical spectra
- Fiber optic array
- Spectrometer
- Grating monochromator
- Single photomultiplier
- Time-correlated photon counting
- Transit time delay
- Wavelength components
- Absorption spectrometer
- Polychromatic light pulse
- Wavelength to time converter
- Incremental time delay
- Spectral resolution
- Modal dispersion
- Photon distribution
Brief
The article describes a novel 30-channel absorption spectrometer that uses fiber optic delay lines of varying lengths to sequentially measure different wavelength components of a light pulse with a single photomultiplier by utilizing time-correlated photon counting techniques.
Summary
This article describes the development of a 30-channel absorption spectrometer that uses an array of optical fibers with different lengths to create time delays for different wavelengths of light dispersed by a grating monochromator. This allows a single photomultiplier and time-correlated photon counting to sequentially detect the different wavelength components, effectively measuring the absorption spectrum as a function of time. While the prototype requires a low counting rate, it demonstrates the potential for single pulse spectral measurements.
Origin: https://sci.bban.top/pdf/10.1021/ac50064a027.pdf#