A broadband filter is an electronic or electromagnetic device designed to pass a range of frequencies or signals within a specified bandwidth while attenuating or rejecting signals outside of that bandwidth. In essence, it allows a wide range of...

Rare earth dopants refer to elements from the lanthanide series, also known as rare earth elements, that are intentionally...

Harmonic generation refers to a nonlinear optical process in which incoming photons interact with a material and produce new...

Gallium nitride (GaN) is a compound made up of gallium (Ga) and nitrogen (N). It is a wide-bandgap semiconductor material...

The Kerr effect, named after the physicist John Kerr who first observed it in 1875, is a nonlinear optical phenomenon where...

A CMOS camera refers to an imaging device that employs a complementary metal-oxide-semiconductor (CMOS) image sensor to...

Optical switching refers to the process of controlling the routing or transmission of optical signals within a network using...

Optoelectronics is a branch of electronics that focuses on the study and application of devices and systems that use light...

In a series of amplifiers, amplification by each of the preceding output.

A lock-in amplifier is a specialized electronic instrument used to extract and measure small signals embedded in noise or...

Oscillation in rod and disc amplifiers that critically limits the achievable energy storage.

A device that enlarges and strengthens a signal's output without significantly distorting its original waveshape. There are...

Optical noise refers to undesirable fluctuations or disturbances in an optical signal that can affect the quality or...

Any noise or current fluctuation that prevents precise measurement of the signal current. Both dark current and signal...

Double-clad fiber (DCF) is a specialized optical fiber that features two concentric cladding layers surrounding a core. The...

In semiconductor physics and materials science, the term "III-V materials" refers to compounds composed of elements from...

Phase distortion refers to a change in the phase relationships between different frequency components of a signal. In the...

A fiber laser is a type of laser in which the active gain medium is an optical fiber doped with rare-earth ions such as...

A dispersion-shifted fiber (DSF) refers to a type of optical fiber designed to minimize the effects of chromatic dispersion,...