A Volume Bragg Grating (VBG) laser diode is a type of laser diode that uses Bragg grating to achieve high spectral purity and wavelength stabilization. Volume Bragg Grating is a transparent medium that exhibits a periodic variation in its refractive index and provides narrow linewidth for laser diodes. It is used for pumping some solid-state lasers in which the laser crystal exhibits efficien...read more

The Fabry-Perot (FP) laser diode is a type of laser diode that utilizes a Fabry-Perot resonant cavity to control the modes of operation and achieve wavelength stability. FP laser cavity functions as a Fabry-Perot interferometer, which is based on the fundamental principle of multiple beam interference. It is an edge-emitting laser diode that produce highly monochromatic laser output. This laser di...read more

Gain switching is a method to generate short optical pulses in the order of picoseconds (10-12) in a laser by modulating the pump power or laser gain. An electrical or optical pumping can be provided for gain-switching. In this method, the optical cavity gain changes rapidly from a low value to a high value. When a high pump power is given, it takes time for the laser emission to happen since...read more

A Quantum Dot Technology Laser Diode is a specialized semiconductor laser device where the active medium, responsible for generating coherent laser light, consists of quantum dots integrated into its structure. Quantum dots are nanoscale semiconductor particles with unique optical properties. These tiny structures typically have dimensions spanning from 2 to 10 nanometers. Quantum dot technology l...read more