Consider the following statements:
(a) LASER diode generates monochromatic coherent light which reduces chromatic dispersion
(b) LASER source is useful for high power long-distance optical communication
(c) LASERs have longer lifetime than LEDs
(d) LASER diodes are less temperature-sensitive than LEDs
Which of the above statements are correct?
1
(a) and (b)
2
(a) and (c)
3
(b) and (d)
4
(b) and (c)