MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 7 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. |
Fiber based lasers provide diffraction-limited power at higher levels than solid-state laser. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
The mechanism which results from a refractive index change in the passive waveguide layer is called as ___________ |
| A. | Absorption |
| B. | Spontaneous emission |
| C. | Monolithic inversion |
| D. | Bragg wavelength control |
| Answer» E. | |
| 3. |
How many techniques can be used to increase the injection cavity length? |
| A. | One |
| B. | Two |
| C. | Three |
| D. | Four |
| Answer» C. Three | |
| 4. |
_________________ laser can be produced when a coupler section is introduced between the amplifier and phase sections of a structure. |
| A. | SG-DBR |
| B. | GCSR |
| C. | Y 4-shifted |
| D. | DSM |
| Answer» C. Y 4-shifted | |
| 5. |
An effective method to reduce the line-width is to make the cavity longer. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 6. |
Laser cavity length can be extended by ___________ |
| A. | Increasing the refractive index |
| B. | Reducing frequency |
| C. | Introduction of external feedback |
| D. | Using GRIN-rod lenses |
| Answer» D. Using GRIN-rod lenses | |
| 7. |
_______________ occurs as a result of the change in lasing frequency with gain. |
| A. | Frequency multiplication |
| B. | Dispersion |
| C. | Attenuation |
| D. | Line-width broadening |
| Answer» E. | |