Across
- 2. dose not exhibit catastrophic degradation
- 4. higher external power efficiency than the planar LED
- 7. impurity give up an electron to the conduction band
- 10. cavity has mirror at both ends
- 12. onter- shell electrons
- 13. source that compatible with SMF
- 14. region where radiative recombination takes place
Down
- 1. on which depletion width increases
- 3. invasion population of upper energy level is greater than population of cower energy level
- 5. geometry which provides optical confinement in vertical direction
- 6. perfect material containing no impurities
- 8. Fermi level closer to conduction band
- 9. distortion drawback of LED
- 11. desirable spectral width for optical source
- 15. heterojunction- structure