Across
- 2. is lasing medium
- 3. Is a non-coherent light source foe optical communications system
- 6. When a beam of light enters one medium from another, which quantity will not change
- 9. The band of light wavelengths that are too long to be seen by the human eye
- 10. Which of the following is used as an optical receiver in fiber optics communications
- 12. Longitudinal waves do not exhibit
- 14. What is a specific path the light takes in an optical fiber corresponding to a certain angle and number of reflection
- 15. is used to describe unwanted components of an electrical signal
- 17. -----can be a computer,printer,or any other device capable of sending and receiving data generated by other device capable of sending &receiving data generated by other nodes on the network
Down
- 1. spreading of light pulses
- 3. monochromatic coherent source
- 4. Which type of laser is the simplest to modulate directly by changing its excitation
- 5. is a set of devices connected by a communication links
- 7. Which theory states that the light wave behaves as if it consists of many tiny particles
- 8. the core is surrounded by a solid dielectric --------
- 11. optics A dielectric waveguide for the propagation of electromagnetic energy at light frequencies
- 13. The loss in signal power as light travels down a fiber is called
- 16. The inner portion of the fiber cable is called