MCQOPTIONS
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MCQOPTIONS
This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Optical Communications knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The use of low impedance driving circuit may increase _____________ |
| A. | Noise |
| B. | Width |
| C. | Intensity |
| D. | Switching speed |
| Answer» E. | |
| 2. |
Extinction ratio is denoted by symbol __________ |
| A. | |
| B. | |
| C. | |
| D. | |
| Answer» B. | |
| 3. |
The coherent emission from an injection laser has a line width of ________ |
| A. | 2 nm |
| B. | 3nm |
| C. | 8 nm |
| D. | 1nm |
| Answer» E. | |
| 4. |
The finite spectral width of the optical source causes ___________ |
| A. | Depletion |
| B. | Frequency burst |
| C. | Pulse broadening |
| D. | Efficient reflection |
| Answer» D. Efficient reflection | |
| 5. |
The _________ of the LED is twice that of the effective minority carrier lifetime. |
| A. | Dwell time |
| B. | Reflection scatters |
| C. | Sensitivity |
| D. | Rise time |
| Answer» E. | |
| 6. |
Optical output power from an LED is directly proportional to the device junction temperature. |
| A. | False |
| B. | True |
| Answer» C. | |
| 7. |
Which behaviour may prove as a limitation for injection lasers and LED s? |
| A. | Isotropic |
| B. | Radioactive |
| C. | Thermal |
| D. | Photosensitive |
| Answer» D. Photosensitive | |
| 8. |
LED s display good linearity. |
| A. | True |
| B. | False |
| Answer» B. False | |