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Showing 1 to 20 of 58 for “"Fiber laser"”.
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Fiber Laser Based Nonlinear Spectroscopy
… laboratory settings. Over recent years, optical-fiber lasers that are highly reliable, simple to operate and relatively inexpensive have become commercially available, removing one of the major obstacles to widespread utilization of nonlinear optical measurement in biochemistry. However, fiber …
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Stable multiwavelength erbium-doped random fiber laser
Multiwavelength fiber lasers which consist of equally-spaced frequency components have found many applications and that includes as light sources for optical communication systems. One of the techniques available to generate such multiple wavelengths is random fiber lasers. Despite simplicity in …
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Generation of pulsed dual wavelength erbium doped fiber laser
Single and dual wavelength fiber lasers and pulsed fiber lasers are well-known to be used for various applications. In the generation of dual wavelength fiber lasers and pulsed fiber lasers, the researchers found the mode competition among the dual wavelength is caused by the cross-gain saturation …
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Passive thermal management in high-power fiber laser systems
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2022-11-11 without embargo terms
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3 GHz Yb-fiber laser based femtosecond sources and frequency comb
Many applications require femtosecond lasers of high repetition rate. In the time domain, a higher repetition rate means more pulses in a fixed time period. For nonlinear bio-optical imaging in which photo-induced damage is caused by pulse energy rather than average power, increasing pulse …
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Remote temperature sensing with low-threshold-power using erbium-doped fiber laser
… appropriate action can be taken quickly. Optical fiber laser temperature sensor is one of technologies that can be used for the implementation of remote temperature sensing. Few developments have been reported regarding the use of fiber laser for remote temperature sensing. However, in general …
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The development of high power, pulsed fiber laser systems and their applications
Due to the recent renewal in interest in fiber laser technology, continuous wave (c.w.) laser technology using rare-earth doped silica fibers has developed rapidly in the past few years. In the late 80s, Erbium Doped Fiber Amplifiers were commercialised and became widely used in the …
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The development of high power, pulsed fiber laser systems and their applications
Rare-earth doped silica fibers have been used for many years to create continuous-wave lasers, and Er-doped fiber amplifiers are now widely used in telecommunications. In addition, cladding pumped fiber allows the efficient conversion of multimode radiation from high power, low cost, broad-stripe …
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Development of optical fiber laser array method for assessing quality of chip packages
… focuses on the development of an improved laser ultrasonic inspection system for quality evaluation of microelectronic packages of all sizes. This new system uses an optical fiber array consisting of two optical fiber probes, instead of the single fiber probe used in the original inspection …
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New techniques for multiple wavelength fiber laser generation based on edfa and tdfa
Multiple wavelength fiber laser (MWFL) can be a potential source for microwave generation as the conventional microwave generator have several issues in generating high frequency. In order to be such source, the MWFL must have the following criterion; a great number of comb lines, a compact design, …
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Real-time characterization of transient dynamics in thulium-doped mode-locked fiber laser
… rely on the stability of mode-locked lasers (MLLs) which provide extreme precision, yet, the complex dynamics of such highly nonlinear systems result in unstable events which could hinder the normal operation of a MLL. MLL as a nonlinear system inherently exists a wide variety of …
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The quasi mode-locked regime: glassy disorder and turbulent dynamics in fiber laser
… (QML) regime in a Yb-doped mode-locked fiber laser, a new and largely unexplored operating phase where intensity fluctuations reveal complex collective behavior. Although this regime may be familiar to experimentalists working with mode-locked lasers, the QML has not been systematically …
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HIGH POWER PULSED FIBER LASER SOURCES AND THEIR USE IN TERAHERTZ GENERATION
… I report the development of high power pulsed fiber laser systems. These systems utilize phosphate glass fiber for active elements, instead of the industry-standard silica fiber. Because the phosphate glass allows for much higher doping of rare-earth ions than silica fibers, much shorter …
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Stabilization of an FM active harmonic mode-locked fiber laser at high repetition rates
… for stabilizing a harmonic active mode-locked fiber laser at 40GHz. A computer tunes the modulation frequency in a 500kHz band near 40GHz to follow variations in the optical cavity length. A second approach based on a Proportional-Integral ( PI) controller and a piezo fiber stretcher was also …
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High energy femtosecond fiber laser at 1018 nm and high power Cherenkov radiation generation
Two novel laser systems for ultrafast applications have been designed and built. For the seeding of a high energy cryogenically cooled Yb:YLF laser, a novel 1018 nm fiber laser system is demonstrated. It produces >35 nJ pulse energy and 5 nm spectral bandwidth. A double-cladd amplifier and an …
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Generation of tunable q-switched erbium-doped fiber laser based on graphite flakes saturable absorber
Pulsed fiber laser has tremendous application in laser processing and laser sensor. The key element to produce a passively Q-switched fiber laser is by using a saturable absorber (SA). Passively Q-switched fiber laser is the most desirable pulse in laser technology due to its ability to generate …
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The impact of brillouin pump pre-amplification on multiwavelength brillouin-erbium fiber laser in linear cavity
Multiwavelength Brillouin Erbium Fiber Lasers (BEFLs) gain interest in recent decades due to their inherent characteristics such as narrow linewidth, high optical power and single frequency. Generation of multiple wavelengths is realizable through combination of Brillouin and Erbium-Doped Fiber …
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Tools for quantum optics : pulsed polarization-maintaining Er-doped fiber laser and spatial mode manipulation in spontaneous parametric downconversion
… one project, a pulsed, mode-locked erbium-doped fiber laser, designed to be used as a seed laser for a 390 nm source, was built using polarization-maintaining components to address polarization drift. The fiber laser operated at a center wavelength of 1560.0 nm with an output power of 1 to 2.5 …
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Photosensitivity and Photodarkening of UV-induced Phosphate Glass Fiber Bragg Gratings and Application in Short Fiber Lasers
Phosphate glass fiber is an ideal choice for building compact high gain fiber lasers, as the fiber can host high concentrations of rare earth ions. However, the low photosensitivity of phosphate glass fibers prevents the integration of UV-written intra-core fiber Bragg gratings (FBGs) into the …
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