Q. ___________ waveguides are plagued by high losses.

View solution

Q. The planar waveguides may be fabricated from glasses and other isotropic materials such as ___________ and ______________

View solution

Q. Which of the following devices are less widely used in the field of optical fibre communications?

View solution

Q. Which of the following materials have refractive index near two?

View solution

Q. Passive devices are fabricated by __________ technique.

View solution

Q. Strip pattern in waveguide structures is obtained through ____________

View solution

Q. Propagation losses in slab and strip waveguides are smaller than the single mode fibre losses.

View solution

Q. A passive Y-junction beam splitter is fabricated from __________

View solution

Q. A passive Y-junction beam splitter is also used as a switch.

View solution

Q. The linear variation of refractive index with the electric field is known as the ________

View solution

Q. Planar waveguides are used to produce _______ coupler.

View solution

Q. Monolithic integration for optical sources are confined to the use of __________ semiconductors.

View solution

Q. Circuits fabricated from GaAs or AlGaAs operate in wavelength region of __________

View solution

Q. The OEICs realization __________ as compared to the other developments in IO.

View solution

Q. Compositional and structural differences between photonic and electronic devices __________

View solution

Q. To avoid large chip __________ devices are used.

View solution

Q. Devices operating at transmission rates greater than 40 Gb/s are _________

View solution

Q. HEMT based __________ have a spot-size convertor with a photodiode.

View solution

Q. P-I-N photoreceiver based on HEMT is integrated with _________ guiding layers.

View solution

Q. An optical power splitter integrated with optical waveguide amplifier is more useful.

View solution