Across
- 2. _________ indexed fibre have uniform core refractive index
- 4. Probability of finding an electron below fermi level at 0K is _____
- 6. Optical fibre works on the principle of _____
- 8. _____level lies between valence band and conduction band
- 12. ________indexed fibre have non uniform core refractive index
- 14. Angle at which light propagates inside the fibre
- 15. ______ is the laser element for Ruby laser
- 16. ________loss occurs when light gets scattered in an optical fibre
- 19. ______material is commonly used for making optical fibres
- 21. _____laser is the cheapest one
- 23. one of the laser property
Down
- 1. _______function provides the probability of finding an electron in a particular energy level
- 3. _______ has to be achieved for laser action to take place
- 5. ______ decides the type of laser
- 7. _____mode fibre allows only one signal to pass through it
- 9. ______mode fibre allows more number of signals to pass through it
- 10. ______ is used as pump source for He-Ne laser
- 11. ______aperture is a number which defines the acceptance of light propagating inside a fibre.
- 13. semiconductor at 0K behaves like a _______
- 17. core refractive index should be _______ than cladding refractive index
- 18. _______loss takes place due to the presence of impurity in the optical fibre
- 20. Probability of finding an electron above fermi level at 0K is _____
- 22. ______ is generated when a current carrying conductor is placed in magnetic field