MCQOPTIONS
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MCQOPTIONS
This section includes 13 Mcqs, each offering curated multiple-choice questions to sharpen your Optical Communication knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The difference between the modes’ refractive indices is called as ___________ |
| A. | Polarization |
| B. | Cutoff |
| C. | Fiber birefringence |
| D. | Fiber splicing |
| Answer» D. Fiber splicing | |
| 2. |
A single mode fiber has mode field diameter 10.2μm and V=2.20. What is the core diameter of this fiber? |
| A. | 11.1μm |
| B. | 13.2μm |
| C. | 7.6μm |
| D. | 10.1μm |
| Answer» E. | |
| 3. |
An optical fiber has a core radius 2μm and a numerical aperture of 0.1. Will this fiber operate at single mode at 600 nm? |
| A. | Yes |
| B. | No |
| Answer» B. No | |
| 4. |
NUMERICAL_APERTURE_IS_CONSTANT_IN_CASE_OF_STEP_INDEX_FIBER._STATE_WHETHER_THE_STATEMENT_IS_TRUE_OR_FALSE.?$ |
| A. | True |
| B. | False |
| Answer» B. False | |
| 5. |
Plastic_fibers_are_less_widely_used_than_glass_fibers._State_whether_the_statement_is_true_or_false.$ |
| A. | True |
| B. | False |
| Answer» B. False | |
| 6. |
How many propagation modes are present in single mode fibers? |
| A. | One |
| B. | Two |
| C. | Three |
| D. | Five |
| Answer» C. Three | |
| 7. |
A single mode fiber has a beat length of 4cm at 1200nm. What is birefringence? |
| A. | 2*10<sup>-5</sup> |
| B. | 1.2*10<sup>-5</sup> |
| C. | 3*10<sup>-5</sup> |
| D. | 2 |
| Answer» D. 2 | |
| 8. |
The difference between the modes’ refractive indices is called as$ |
| A. | Polarization |
| B. | Cutoff |
| C. | Fiber birefringence |
| D. | Fiber splicing |
| Answer» D. Fiber splicing | |
| 9. |
A single mode fiber has mode field diameter 10.2μmand V=2.20. What is the core diameter of this fiber?$ |
| A. | 11.1μm |
| B. | 13.2μm |
| C. | 7.6μm |
| D. | 10.1μm |
| Answer» E. | |
| 10. |
Which equation is used to calculate MFD? |
| A. | Maxwell’s equations |
| B. | Peterman equations |
| C. | Allen Cahn equations |
| D. | Boltzmann’s equations |
| Answer» C. Allen Cahn equations | |
| 11. |
What is needed to predict the performance characteristicsics of single mode fibers? |
| A. | The intermodal delay effect |
| B. | Geometric distribution of light in a propagating mode |
| C. | Fractional power flow in the cladding of fiber |
| D. | Normalized frequency |
| Answer» C. Fractional power flow in the cladding of fiber | |
| 12. |
An optical fiber has a core radius 2μmand a numerical aperture of 0.1. Will this fiber operate at single mode at 600 nm?$ |
| A. | Yes |
| B. | No |
| Answer» B. No | |
| 13. |
An optical fiber has core-index of 1.480 and a cladding index of 1.478. What should be the core size for single mode operation at 1310nm? |
| A. | 7.31μm |
| B. | 8.71μm |
| C. | 5.26μm |
| D. | 6.50μm |
| Answer» E. | |