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Optical Beacon Wavelength Measurement The three wavelength sources 470 nm, and 400 nm and Laser) have been measured with a high res calibrated spectrometer.

Published byKerry Underwood Modified over 9 years ago

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Presentation on theme: "Optical Beacon Wavelength Measurement The three wavelength sources 470 nm, and 400 nm and Laser) have been measured with a high res calibrated spectrometer."— Presentation transcript:

1 Optical Beacon Wavelength Measurement The three wavelength sources (LED @ 470 nm, and 400 nm and Laser) have been measured with a high res calibrated spectrometer from Ocean Optics HR4000CG-UV-NIR Measurements:  A sample of 20 cleaved blue LEDs (Agilent HLMP-CB15)  Usual standard LED of LOB Beacons  Nominal wavelength: 472 nm (35 nm FWHM)  A sample of 15 cleaved HUVL 400-520 B  LED used in L12F2 and L11F2  Nominal wavelength: 400 nm (20 nm FWHM) Spectrometer checked with the Green Nd-YAG Laser (532 nm) (D. Real, F Urbano, A Sánchez, J Ruiz-Rivas)

2 Optical Beacon Wavelength Measurement Blue LEDs @ 472 nm LED #MeanSigmaFwhm 1466.713.932.7 2468.214.433.9 3466.314.834.9 4466.814.133.3 5467.814.233.5 6469.914.734.5 7468.614.935.1 8467.314.534.1 9468.014.333.6 10467.714.734.6 11467.914.634.3 12468.314.834.7 13469.915.035.3 14470.314.834.9 15468.314.434.0 16469.914.133.3 17469.813.932.8 18470.114.233.5 19469.514.534.1 20468.714.033.0 Mean valueSigma FWHM 468.514.434 Mean Value distribution

3 Optical Beacon Wavelength Measurement Blue LEDs @ 400 nm Mean valueSigma FWHM 403.16.916.2 LED #MeanSigmaFWHM 1402.56.816.1 2404.47.116.8 3403.67.317.1 4403.86.815.9 5403.46.515.2 6403.26.515.4 7402.67.016.5 8403.47.216.9 9402.17.116.6 10403.06.615.7 11402.57.016.5 12402.66.816.1 13402.97.016.5 14403.06.816.1 15403.56.816.0 Mean Value distribution

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