Fiber Cut off Wavelength Measurements

What is the tool used to measure the cut off wavelength of a fiber?

• Optical Spectrum Analyzer (OSA)

• Optical Time Domain Reflectometer (OTDR)

• Fiber Optic Tester

• Light Source Meter

Is the cut off wavelength measurement important in fiber optics?

• Maybe

• No

• Yes

• Not sure

Can you name one application of knowing the cut off wavelength of a fiber?

• Building construction

• Car maintenance

• Cooking recipes

• Designing optical filters and sensors

What happens if the wavelength of light is below the cut off wavelength of a fiber?

• The light will change color as it passes through the fiber

• The light will propagate faster through the fiber

• The light will not propagate through the fiber.

• The fiber will become more transparent to the light

What happens if the wavelength of light is above the cut off wavelength of a fiber?

• The light will not be able to propagate through the fiber.

• The light will propagate faster through the fiber

• The light will change color as it passes through the fiber

• The fiber will become more transparent to the light