For which of the following reasons, losses in optical fibers can be caused?
1. Impurities
2. Attenuation in glass
3. Micro bending
4. Stepped index operation
1
1, 2 and 3 only
2
1, 3 and 4 only
3
1, 2 and 4 only
4
2, 3 and 4 only
For which of the following reasons, losses in optical fibers can be caused?
1. Impurities
2. Attenuation in glass
3. Micro bending
4. Stepped index operation