A device which is made of isolators and follows a closed loop path is called as a ____________

Related MCQs

• A combination of a FBG and optical isolators can be used to produce non-blocking optical wavelength division add/draw multiplexers. State whether the given statement is true or false.
• Magneto-optic devices can be used to function as isolators. State whether the given statement is true or false.
• How many implementation methods are available for optical isolators?
• When a constant d.c. drive current is applied to device, the optical o/p power is 320 μm. Determine optical o/p power when device is modulated at frequency 30 MHz with minority carrier recombination lifetime of LED i.e. 5ns.
• A device which converts electrical energy in the form of a current into optical energy is called as
• It is a passive device which allows the flow of optical signal power in only one direction and preventing reflections in the backward direction.
• A GaAs injection laser has a threshold current density of 2.5*103Acm-2and length and width of the cavity is 240μmand 110μm respectively. Find the threshold current for the device.
• Buried hetero-junction (BH) device is a type of _____________ laser where the active volume is buried in a material of wider band-gap and lower refractive index.
• Determine the internal quantum efficiency generated within a device when it has a radiative recombination lifetime of 80 ns and total carrier recombination lifetime of 40 ns.
• The techniques by Burros and Dawson in reference to ho*mo structure device is to use an etched well in GaAs structure. Determine the given statement is True or false.