Q. Alignment accuracy of the order ___________ is obtained using the three glass rod alignment sleeve.

View solution

Q. In case of multiple fusion, splice losses using an electric arc fusion device with multimode graded index fiber range from ____________

View solution

Q. Demountable fiber connectors are more difficult to achieve than optical fiber splices.

View solution

Q. What is the use of an index-matching material in the connector between the two jointed fibers?

View solution

Q. How many categories of fiber connectors exist?

View solution

Q. The basic ferrule connector is also called as _____________

View solution

Q. What is the use of watch jewel in cylindrical ferrule connector?

View solution

Q. The concentricity errors between the fiber core and the outside diameter of the jeweled ferrule are in the range of ___________ with multimode step-index fibers.

View solution

Q. The typical average losses for multimode graded index fiber and single mode fiber with the precision ceramic ferrule connector are _____________ respectively.

View solution

Q. Bi-conical ferrule connectors are less advantageous than cylindrical ferrule connectors.

View solution

Q. In connectors, the fiber ends are separated by some gap. This gap ranges from ____________

View solution

Q. What is the use of interposed optics in expanded beam connectors?

View solution

Q. The expanded beam connectors use ____________ for beam expansion and reduction.

View solution

Q. Lens-coupled expanded beam connectors exhibit average losses of _________ in case of single mode and graded index fibers.

View solution

Q. Sapphire ball lens expanded beam design is successful than spherical lens coupled design.

View solution

Q. The fiber is positioned at the ________ of the lens in order to obtain a collimated beam and to minimize lens-to-lens longitudinal misalignment effects.

View solution

Q. ___________ exhibits a parabolic refractive index profile with a maximum at the axis similar to graded index fiber.

View solution

Q. The GRIN-rod lens can produce a collimated output beam with a divergent angle α of between _____________ from a light source situated on, or near to, the opposite lens face.

View solution

Q. In the given equation, if r is the radial distance, n is the refractive index; what does z stands for?

dr²/dz² = (1/n) (dn/dr)

View solution

Q. The majority of the GRIN-rod lenses have diameters in the range of ____________

View solution