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7. The Numerical Aperture, NA, of a waveguide is defined as n sin A where nA is the refractive index of the material from which the light enters the waveguide and is the maximum acceptance angle, as shown in Q3. Apply trigonometry to the figure in Q3 and show that the Numerical Aperture is: NA = n²-n²

7. The Numerical Aperture, NA, of a waveguide is defined as n sin A where nA is the refractive index of the material from which the light enters the waveguide and is the maximum acceptance angle, as shown in Q3. Apply trigonometry to the figure in Q3 and show that the Numerical Aperture is: NA = n²-n²

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7. The Numerical Aperture, NA, of a waveguide is defined as no sin A where nд is the refractive index of the material from which the light enters the waveguide and is the maximum acceptance angle, as shown in Q3. Apply trigonometry to the figure in Q3 and show that the Numerical Aperture is: √√n²-n² NA =
Transcribed Image Text:7. The Numerical Aperture, NA, of a waveguide is defined as no sin A where nд is the refractive index of the material from which the light enters the waveguide and is the maximum acceptance angle, as shown in Q3. Apply trigonometry to the figure in Q3 and show that the Numerical Aperture is: √√n²-n² NA =
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