OPTICS Flashcards
Founded the wave theory of light
Christian Huygens
Proposed the use of clad glass fiber as a dielectric waveguide
Bockham and Kao
Developed the first laser
Theodore Maiman
The band of light wavelengths that are too long to be seen by the human eye
Infrared
the different angle of entry of light into an optical fiber when the diameter of the core is many times the wavelength of the light transmitted.
Modes
The loss in signal power as light travels down a fiber is called
Attenuation
bandwidth of optical fiber
900 THz
When a beam of light enters one medium from another, which quantity will not change?
Frequency
An object farther from a converging lens than its focal point always has a/an _____ image.
Inverted
An object nearer to a converging lens than its focal point always has a/an ______ image.
Virtual
laser emits light in the visible range 400 to 700 nm?
Argon-ion
1 Angstrom
10^-10 meter
Scientist who coined the term Fiber Optics
Narinder Singh Kapany
Component of Fiber Communication system that converts electrical energy to Light Energy
Optical Transmitter
Component of Fiber Communication system that converts Light Energy to Electrical energy
Optical Receiver
what is 2 requirements of Total Internal Reflection
More dense to Less dense, Angle of incidence is greater than to critical angle
Total internal reflection takes place if the light ray strikes the interface at an angle with what relationship to the critical angle?
Greater than
The operation of the fiber-optic cable is based on the principle of
Reflection
1 meter = ______ ft
3.28
1 meter = _________ inches
39.37
The ratio of speed of light in air to the speed of light in another substance is called the
Refraction Index
In fiber optics, PCS stands for
Plastic-Clad-Silica
What parameter of the light detector determines the range or system length that can be achieved for a given wavelength?
pectral response
What is the unit of responsitivity?
Ampere/watt
