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Saturable absorption

About: Saturable absorption is a research topic. Over the lifetime, 10222 publications have been published within this topic receiving 185893 citations.


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Proceedings ArticleDOI
01 Oct 2003
TL;DR: In this article, the authors reviewed recent progress in ultrashort pulse generation with mode-locked fiber lasers utilizing semiconductor saturable absorbers to initiate the mode-locking mechanism and to stabilize the laser pulse train.
Abstract: This paper reviews recent progress in ultrashort pulse generation with mode-locked fiber lasers utilizing semiconductor saturable absorbers to initiate the mode-locking mechanism and to stabilize the laser pulse train. The saturable absorbers were monolithically grown by molecular beam epitaxy on top of a Burstein-Moss shift Ga 0.47 In 0.53 As/InP distributed Bragg reflector. The design guidelines and the main features of the semiconductor saturable absorber mirrors are summarized. Synchronization of a harmonically mode-locked pulse train to an external signal and repetition rate stabilization is demonstrated by directly modulating the 980 nm pump diode laser used both to provide gain and to optically modulate a semiconductor saturable absorber mirror.
Proceedings ArticleDOI
25 Jun 2017
TL;DR: In this article, a nonlinear polarization evolution (NPE) mode-locker implementation based on Polarization Maintaining (PM) fibers has been developed using an artificial saturable absorber (SA).
Abstract: Nonlinear Polarization Evolution (NPE) — a passive mode-locking technique — is successfully used in many all-fiber ultrafast oscillators. It is based on a temporal filtration of the pulse polarization state affected by a self-action due to the instantaneous Kerr nonlinearity. To work properly, most of NPE based architectures of fiber lasers contain pieces of standard optical fibers or bulk optical elements, which makes them susceptible to temperature changes and mechanical perturbations. We present a novel NPE mode-locker implementation based on Polarization Maintaining (PM) fibers resolving this problem. The all-PM-fiber all-normal-dispersion femtosecond oscillator has been developed using such an artificial saturable absorber (SA).
01 Jan 2020
TL;DR: In this paper, the authors demonstrate the generation of Q-switching pulse train in Erbium-doped fiber laser (EDFL) by using a saturable absorber (SA), which is obtained by embedding cadmium selenide (CdSe) into a poly-methyl methacrylate (PMMA) microfiber.
Abstract: We demonstrate the generation of Q-switching pulse train in Erbium-doped fiber laser (EDFL) by using a saturable absorber (SA), which is obtained by embedding cadmium selenide (CdSe) into a poly-methyl methacrylate (PMMA) microfiber. The CdSe microfiber is placed between two cutting microfiber tips which are connected to an EDFL cavity. The Q-switched laser operates at 1533 nm with repetition rate obtained are within 37 kHz to 64 kHz as the pump power is varied from 34 mW to 74 mW. The corresponding pulse width reduces from 7 µs to 4 µs and the maximum pulse energy of 11. 58 nJ is obtained at the pump power of 74 mW. This work may be the first demonstration of Q-switched fiber laser using a microfiber quantum dots CdSe based SA.
Journal ArticleDOI
TL;DR: In this paper, a high-peak-power, short-pulse-width LD end-pumped doubly Q-switched Nd:YAG 946 nm laser is reported.
Abstract: We report a high-peak-power, short-pulse-width LD end-pumped doubly Q-switched Nd:YAG 946 nm laser. Using an acousto-optically Q-switch and a Cr4+:YAG saturable absorber, doubly Q-switched operation in 946 nm laser is conducted at 3 kHz. Maximum peak power of 17.8 kW is achieved with a pulse width of 15.5 ns in doubly Q-switched 946 nm laser operation.
Proceedings ArticleDOI
31 May 2009
TL;DR: In this article, a dynamical approach was employed to study the slow saturable absorber mode-locking with noise, and the condition of pulse existence and continuum stability, the pulse power and the minimal pulse width were derived.
Abstract: We employ a novel dynamical approach to study the slow saturable absorber mode-locking with noise. We obtain explicit expressions for the condition of pulse existence and continuum stability, the pulse power and the minimal pulse width, and present the guidelines for optimal system configuration.

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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
2023196
2022540
2021467
2020573
2019724
2018679