Source: MDPI Gaussian Pulses Gaussian Pulses Overview Gaussian pulses are a common temporal shape of ultrashort pulses generated by mode-locked lasers. They are often described by a Gaussian function, with a peak power related to the pulse energy and duration. Characteristics of Gaussian Pulses Gaussian pulses typically have a symmetric shape with a bell curve […]
Source: Nature Understanding Pulse Propagation in Mode-Locked Lasers Understanding Pulse Propagation in Mode-Locked Lasers Introduction Mode-locked lasers are important tools in various fields due to their ability to generate ultrashort pulses of light. In this blog post, we will delve into the numerical simulation of pulse propagation in mode-locked lasers, focusing on a simple example
Passive Mode Locking Of A Laser: Comparison With Kuizenga–Siegman Theory Read More »
Source: ResearchGate Blog Post: Numerical Simulation of Pulse Propagation Numerical Simulation of Pulse Propagation Understanding Active Mode Locking In active mode-locking, a laser resonator setup is used where a gain medium, a modulator, and an output coupler (OC) are employed. The gain medium amplifies light, the modulator controls the round-trip losses, and the OC allows
Active Mode Locking Of A Laser Read More »
Source: Wikipedia The Duration of Light Pulses Light pulses, also known as pulse width or pulse length, can vary significantly in duration depending on the method of generation: – Modulating a continuous-wave light source can produce pulses ranging from tens of picoseconds to high values. – Gain switching of laser diodes can lead to pulses
Source: MDPI The Fascinating World of Ultrashort Pulses in Photonics Understanding Ultrashort Pulses Ultrashort pulses are incredibly brief light pulses generated in mode-locked lasers, typically ranging from a few tens of picoseconds to femtoseconds in duration. These pulses, sometimes referred to as “ultrafast,” have short rise and fall times, enabling the study of ultrafast processes
Source: ResearchGate Understanding Gain Narrowing in Lasers and Amplifiers Gain Narrowing in Lasers and Amplifiers Introduction Gain narrowing is a phenomenon that occurs when light with a certain optical bandwidth is amplified in an optical amplifier medium with a limited gain bandwidth. This leads to a reduction in the optical bandwidth, resulting in a narrower
Source: Femto Easy Understanding Optical Autocorrelators Introduction Optical autocorrelators are essential tools used for analyzing light, particularly for measuring the duration of ultrashort pulses in the picosecond or femtosecond range. These devices operate based on the principle of checking the correlation of the temporal pulse trace with itself. Autocorrelators come in different types, such as
Source: Signal Processing Stack Exchange Understanding Time–Bandwidth Product in Light Pulses Understanding Time–Bandwidth Product in Light Pulses What is the Time–Bandwidth Product? The time–bandwidth product of a light pulse is the product of its temporal duration and spectral width. In simpler terms, it is a measure of how spread out a pulse is in both
Time–Bandwidth Product Read More »
Source: Nature The Kuizenga–Siegman Theory in Laser Physics The Kuizenga–Siegman theory is a theoretical framework used to calculate the pulse duration of an actively mode-locked laser. In this theory, two main mechanisms influence the duration of the circulating pulse: the modulator, which attenuates the pulse wings, reducing the pulse duration, and the gain medium, which
Kuizenga–Siegman Theory Read More »
Source: ResearchGate Understanding Parabolic Pulses in Fiber Optics Understanding Parabolic Pulses in Fiber Optics What are Parabolic Pulses? A parabolic pulse is a type of light pulse, typically an ultrashort pulse, with a temporal intensity profile that follows a parabolic shape. This unique profile extends from the pulse center to the edges where the intensity
