couplers combine the different wavelength optical signal onto the fiber or separate the different wavelength optical signal output from the fiber.

Related MCQs

• Optical fiber couplers are also called as
• How many types of multiport optical fiber couplers are available at present?
• In pulse dispersion measurements, the 3dB pulse broadening for the fiber is 10.5 ns/km and the length of the fiber is 1.2 km. Calculate the optical bandwidth for the fiber.
• How many fabrication techniques are used for 3 port fiber couplers?
• How many manufacturing methods are used for producing multimode fiber star couplers?
• A single mode fiber has refractive indices n1=1.50, n2 = 2.23, core diameter of 8μm, wavelength = 1.5μm cutoff wavelength = 1.214μm. Find the radius of curvature?
• The optical source used in a fiber is an injection laser with a relative spectral width σλ/λ of 0.0011 at a wavelength of 0.70μm. Estimate the RMS spectral width.
• An optical fiber has a core radius 2μm and a numerical aperture of 0.1. Will this fiber operate at single mode at 600 nm?
• A                            coupler comprises a number of cascaded stages, each incorporating three or four-port FBT couplers to obtain a multiport output.
• A multiplexing technique which does not involve the application of several message signals onto a single fiber is called as