Almost                    of the transmitter power is wasted in the use of external modulators.

Related MCQs

•                      compensates for distortion of the signal due to the combined transmitter, medium and receiver characteristics.
•                      limits the maximum distance between the optical fiber transmitter and receiver.
• As compared to planar LED structure, Dome LEDs have                              External power efficiency                        effective emission area and                            radiance.
•                  does not require an external modulator.
• External modulation for                   modulation format allows the most sensitive coherent detection mechanism.
• 0375 V. Determine optical power launched into fiber.
• Determine the Responsivity of optical power of 0.4μW and photocurrent of 0.294 μA.
• In case of field measurements, the equipment must have                        power consumption keeping in mind the battery operation.
• The handheld optical power meter has a measurement accuracy of                  
• When considering source-to-fiber coupling efficiencies, the                  is an important parameter than total output power.