Estimate optical power coupled into fiber of DH SLED having emission a – McqOptions

MCQOPTIONS

1.	Estimate optical power coupled into fiber of DH SLED having emission area of 1.96*10^-5, radiance of 40 W/rcm², numerical aperture of 0.2 and Fresnel reflection coefficient of 0.03 at index matched fiber surface.
A.	5.459*10<sup>-5</sup>
B.	1.784*10<sup>-3</sup>
C.	3.478*10<sup>2</sup>
D.	9.551*10<sup>-5</sup>
Answer» E.

Discussion

No Comment Found

Related MCQs

The active layer of E-LED is heavily doped with ____________
The InGaAsP is emitting LEDs are realized in terms of restricted are ____________
Mesa structured SLEDs are used ____________
The overall power conversion efficiency of electrical lens coupled LED is 0.8% and power applied 0.0375 V. Determine optical power launched into fiber.
Determine the overall power conversion efficiency of lens coupled SLED having forward current of 20 mA and forward voltage of 2 V with 170 Wof optical power launched into multimode step index fiber.
In a multimode fiber, much of light coupled in the fiber from an LED is ____________
Estimate optical power coupled into fiber of DH SLED having emission area of 1.96*10<sup>-5</sup>, radiance of 40 W/rcm<sup>2</sup>, numerical aperture of 0.2 and Fresnel reflection coefficient of 0.03 at index matched fiber surface.
A DH surface emitter LED has an emission area diameter of 60 m. Determine emission area of source.
DH surface emitter generally give ____________
Internal absorption in DH surface emitter Burros type LEDs is ____________