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3dB optical bandwidth is always ___________ the 3dB electrical bandwidth.
The 2018 Nobel Prize in Physics has been awarded in laser physics for the optical tweezers and their applications to biological systems for the method of generating high-intensity, ultra-short optical pulses. Which of the following verifies the given statement? I:  The 2018 Nobel Prize in Physics has been awarded in laser physics for the optical tweezers. II: The 2018 Nobel Prize in Physics has been awarded for applications of the optical tweezers to biological systems. III: The 2018 Nobel Prize in Physics has been awarded for the method of generating high-intensity, ultra-short optical pulses using the optical tweezers.
The 3 dB electrical bandwidth B is 42 MHz. Determine 3dB optical bandwidth Bopt.
A single-mode optical fiber has an attenuation of 0.3dB/km when operating at wavelength of 1.1μm. The fiber core diameter is 4μm and bandwidth is 500 MHz. Find threshold optical power for stimulated Brillouin scattering.
Match the following Device Conversion of Energy (a) Windmill (i) Chemical Energy to electrical energy (b) Bulb (ii) Kinetic Energy to Electrical Energy (c) Electrical Cell (iii) Sound Energy to Electrical energy (d) Microphone (iv) Electrical Energy to Light Energy
cascading two identical amplifier stages, each having a low-pass STC frequency response with a 3dB frequency f1, results in an overall amplifier with a 3dB frequency given by
In pulse dispersion measurements, the 3dB pulse broadening for the fiber is 10.5 ns/km and the length of the fiber is 1.2 km. Calculate the optical bandwidth for the fiber.
Some of the physical and functional advantages of optical fiber communication are mentioned here. Select the option which tells about the functional advantages of optical fiber communication. I. The transmission bandwidth of the fiber optic cables is higher than the metal cables. II. Since these cables are di-electric, no spark hazards are present. III. Fibre optic cables last longer than copper cables. IV. The amount of data transmission is higher in fiber optic cables. V. Fibre optic cables are immune to electromagnetic interference. VI. These are not affected by electrical noise.
The optical bandwidth is _____________ the electrical bandwidth.
Determine the 3 dB electrical bandwidth at 3 dB optical bandwidth Bopt of 56.2 MHz.