Publications [#280465] of David J. Brady
Papers Published
- Potuluri, P; Gehm, M; Sullivan, M; Brady, D, Measurement-efficient optical wavemeters.,
Optics Express, vol. 12 no. 25
(December, 2004),
pp. 6219-6229 [19488267], [doi]
(last updated on 2023/06/01)Abstract:
We describe a method for efficiently determining the wavelength of a monochromatic source and provide an experimental proof-of-concept. The photomeasurement efficiency for a wavemeter can be written as eta(N,q) = (1 + logqN)/m, where N is the number of spectral channels, q is the number of distinguishable output levels per photodetector, and m is the actual number of photomeasurements made. An implementation is developed that achieves a theoretical efficiency of eta(N,q) = 1. The proof-of-concept experiment achieves efficiencies eta = O(1), where the deviation from theory is attributable to well-known optical effects and should be correctable in future versions.Keywords:
Optical systems;Spectrometers;Photodetectors;Monochromators;Semiconducting gallium arsenide;Infrared radiation;Interferometers;Dense wavelength division multiplexing;Communication systems;Fourier transforms;