Fabry Perot (FP) Laser Diode Chip

Description

A Fabry-Perot (FP) laser diode chip is a type of laser diode chip that uses a Fabry-Perot cavity to generate a laser beam. The Fabry-Perot cavity is formed by two parallel mirrors that are positioned on either side of the active region of the laser diode chip.

When a voltage is applied across the p-n junction of the laser diode chip, electrons and holes are injected into the active region, where they recombine and emit photons. The photons travel back and forth between the mirrors of the Fabry-Perot cavity, building up in intensity until they are emitted as a coherent laser beam through one of the mirrors.

FP laser diode chips are widely used in telecommunications and optical data storage because they offer a relatively high output power and a narrow spectral linewidth. However, they are also prone to mode hopping, which can cause fluctuations in the output power and wavelength. To minimize mode hopping, FP laser diode chips are often operated with a stable current source and temperature control to maintain the cavity length and stabilize the emission wavelength.

Fabry-Perot LD chips are available in the wavelength range from visible to infrared. They can be single mode and multi mode and are supplied as bare dice or as chips on submount CoS or chip on carrier CoC.

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