Module 14 Measuring Bandwidth

What does the optical bandwidth of a fiber represent?

• The total optical power transmitted through the fiber

• The frequency range a fiber can transmit without significant signal degradation

• The maximum transmission distance of a fiber without amplifiers

• The number of wavelengths supported in WDM systems

In a digital fiber optic link, why is the rise time budget important?

• It ensures low attenuation over long distances

• It estimates and manages system bandwidth by accounting for pulse spreading

• It measures optical power in dBm at the receiver

• It calculates the minimum BER achievable in a system

Which factor is a primary limitation of system bandwidth in both SMF and MMF?

• Connector return loss

• Fiber dispersion (chromatic or modal)

• Wavelength stability of the transmitter

• Cost of multiplexing techniques

Which of the following is a method of optical dispersion compensation?

• Using OTDR traces to measure slope

• Employing Dispersion Compensating Fiber (DCF) or chirped Fiber Bragg Gratings (FBG)

• Reducing splice loss below 0.1 dB

• Adding patch panels for signal reconfiguration

Which technology allows detection of both intensity and phase of the optical signal, enabling higher-order modulation formats?

• All-Optical Signal Processing (AOSP)

• Coherent optics with DSP

• VCSEL-based transmitters

• Rise-time budgeting