Journal
Scientific and technical journal of information technologies, mechanics and optics
UDK535.3
Issue:3 (85)
COHERENCE TIME CALCULATION OF FEMTOSECOND SPECTRAL SUPERCONTINUUM IN QUARTZ OPTICAL FIBER
Annotation
It is shown that in the case of femtosecond spectral supercontinuum generation in quartz fiber in the areas of normal, abnormal and zero group velocity dispersion, with an increase of the central wavelength of the femtosecond laser pulse at the input, the coherence radiation time with ultra-wide spectrum is significantly reduced. However, in the region of zero group dispersion of quartz fiber there is a "leap" of coherence time. For example, for the initial pulse duration of 40 fs at 800 nm at spectral supercontinuum generation in quartz fiber, the coherence time is 22 fs. With the increase of wavelength, the coherence time is reduced to 4 fs at a wavelength of 1180 nm. In the area of zero group dispersion, the coherence time is increased dramatically to 20 fs, after which it is reduced, reaching a minimum of 4 fs at a wavelength of 1560 nm.
Keywords
Постоянный URL
Articles in current issue
- MODERN STATE AND DEVELOPMENT PERSPECTIVES OF FOREIGN INFRARED IMAGERS
- CORRECTION METHOD OF FIELD CURVATURE IN WIDE-ANGLE OBJECTIVE LENS
- METHOD OF ANGULAR SELECTIVE REGULATION FOR DIRECTIONAL LIGHT
- CONTINUOUS SPECTRA RESTORATION BY AN ADAPTIVE WAY OF COMPUTING EXPERIMENTS WITH REGULARIZATION
- SOLUTION METHOD OF DYNAMIC ROUTING AND WAVE LENGTH ASSIGNMENT PROBLEM FOR WDM NETWORKS WITH TAKING INTO ACCOUNT FOUR-WAVE MIXING EFFECT
- IMAGE QUALITY FORECASTING FOR SPACE OBJECTS
- COLLIMATION AND FOCUSING OF PARAXIAL WAVE PACKET OBTAINED BY DIFFRACTION IN THE FAR AREA OF INITIAL SINGLE-CYCLE WAVE
- ROBUST SUBOPTIMAL CONTROL OF AIRCRAFT LATERAL MOVEMENT AT LANDING CONDITIONS
- PROCESS OSCILLATIVITY STUDY IN APERIODIC CONTINUOUS SYSTEMS, GENERATED BY EIGENVALUES MULTIPLICATION FACTOR
- DESIGN AND ENGINEERING BACKGROUND FOR STATION NETWORKS OF VERTICAL IONOSPHERE SOUNDING
- RELIABILITY OF REDUNDANT COMPUTING COMPLEX WITH RECOVERY LIMITATIONS
- EFFICIENCY ANALYSIS OF HASHING METHODS FOR FILE SYSTEMS IN USER MODE
- QUERIES DISTRIBUTION OPTIMIZATION BETWEEN CLUSTERS OF FAULT-TOLERANT COMPUTING SYSTEM
- THE ALGORITHM AND PROGRAM OF M-MATRICES SEARCH AND STUDY
- AGENT-BASED APPROACH TO BUSINESS PROCESSES SIMULATION IN eEPC NOTATION
- PLANNING MODEL OF TIME-FREQUENCY RESOURCE IN THE DOWNLINK OF LTE TECHNOLOGY
- RADIATION CHARACTERISTICS RESEARCH OF THE Q-SWITCHED ER:YLF LASER UNDER CONDITIONS OF THE GAIN SPATIAL INHOMOGENEITY
- NUMERICAL SIMULATION OF Q-SWITCHED Nd: YAG LASER WITH UNSTABLE RESONATOR AND OUTPUT VARIABLE REFLECTIVITY MIRROR
- TERAHERTZ REFLECTANCE SPECTRA OF SKIN DERMATITIS AND MORPHOLOGICAL CHANGES
- COMPUTATIONAL MODELING OF AIRFLOW IN NONREGULAR SHAPED CHANNELS
- THE METHOD FOR MEASUREMENT AND CALCULATION OF BREATH CHARACTERISTICS
- BREATH PARAMETERS MEASUREMENT BY AIR FLOW SENSOR
- IDENTIFICATION OF LUMINESCENT CENTRES IN GLASS WITH COPPER AND CHLORINE IONS
- MODIFICATION OF SILICON ABSORPTIVITY UNDER FEMTOSECOND LASER PULSE
- MICROSTRUCTURING MECHANISM OF SiO2/Si SYSTEM UNDER IRRADIATION BY A SCANNING PULSED FIBER LASER BEAM
- AL2O3 NANOSTRUCTURED FILMS CREATION BY METHOD OF ELECTROCHEMICAL ANODIZING
- EFFECT OF SURFACE ROUGHNESS ON THE STRENGTH OF PRESS CONNECTIONS
- ANALYSIS METHOD OF INFORMATION SECURITY SYSTEMS ARCHITECTURE BASED ON STANDARD ELEMENTS
- AUTOMATED PREPARING OF MATHEMATICAL TASKS BY THE PARAMETER VARIATION METHOD
- PHOTO DESTRUCTION OF SILVER NANOPARTICLES IN PHOTO-THERMO-REFRACTIVE GLASS
- OPTICAL-ELECTRONIC SYSTEM FOR EXPRESS ANALYSIS OF ORE DRESSABILITY FOR MINERAL RAW MATERIALS BY OPTICAL METHOD
- ORGANIZATION OF LIBRARIES IN ALTIUM DESIGNER
- HYPER-LISTS APPLYING TO WEB-PORTAL DEVELOPMENT