485-146 - Wseas.us
... devices. In the device presented in this report an average refractive index discontinuity in the Bragg grating was produced and electrically controlled by choosing a proper spatial distribution of the applied external electric field. In this case the electrooptical nature of reconfiguration provides ...
... devices. In the device presented in this report an average refractive index discontinuity in the Bragg grating was produced and electrically controlled by choosing a proper spatial distribution of the applied external electric field. In this case the electrooptical nature of reconfiguration provides ...
Microwaves and Fiber Optics Summer 2013
... information regarding conduct in courses, labs, and in the general use of facilities. Cheating, plagiarism and other forms of academic fraud are taken very seriously by both the University and the Department. You should consult http://web.uvic.ca/calendar2012/FACS/UnIn/UARe/PoAcI.html for the UVic p ...
... information regarding conduct in courses, labs, and in the general use of facilities. Cheating, plagiarism and other forms of academic fraud are taken very seriously by both the University and the Department. You should consult http://web.uvic.ca/calendar2012/FACS/UnIn/UARe/PoAcI.html for the UVic p ...
Unit-3
... amplifier, voltage amplifier and a decision making circuit to get the exact information signal back. High impedance amplifier and Trans impedance amplifier are the two popular configurations of front end amplifier, the design of which is very critical for sensible performance of the receiver. The tw ...
... amplifier, voltage amplifier and a decision making circuit to get the exact information signal back. High impedance amplifier and Trans impedance amplifier are the two popular configurations of front end amplifier, the design of which is very critical for sensible performance of the receiver. The tw ...
Syllabus
... • Optical Fiber Communications, Gerd Keiser, 3rd Edition, McGraw-Hill, 2000 • Fiber-Optic Communication Systems, 3rd Ed., G. P. Agrawal, John Wiley & Sons, 2002. • Optical Sources, Detectors, and Systems, Robert H. Kingston, Academic Press, 1995. • Optical Communication Systems, 2nd edition, John Go ...
... • Optical Fiber Communications, Gerd Keiser, 3rd Edition, McGraw-Hill, 2000 • Fiber-Optic Communication Systems, 3rd Ed., G. P. Agrawal, John Wiley & Sons, 2002. • Optical Sources, Detectors, and Systems, Robert H. Kingston, Academic Press, 1995. • Optical Communication Systems, 2nd edition, John Go ...
Interferometer design for writing Bragg gratings in optical fibers
... The phase mask is most often a 12.5 X 25.4 mm rectangle. A phase mask holder allows for an adjustment θ z using a fine screw and a flexure. This is a critical adjustment but it need only be made when a phase mask has been replaced. The x and y positions are not critical. The z of focus motion is con ...
... The phase mask is most often a 12.5 X 25.4 mm rectangle. A phase mask holder allows for an adjustment θ z using a fine screw and a flexure. This is a critical adjustment but it need only be made when a phase mask has been replaced. The x and y positions are not critical. The z of focus motion is con ...
Get PDF - OSA Publishing
... the supported modes and the effective refractive indices for each wavelength than the Beam Propagation Method [11]. Because of complexity of grating structures especially in the case of superimposed gratings and sample gratings, even small diversions in the initial parameters are crucial for the fin ...
... the supported modes and the effective refractive indices for each wavelength than the Beam Propagation Method [11]. Because of complexity of grating structures especially in the case of superimposed gratings and sample gratings, even small diversions in the initial parameters are crucial for the fin ...
may10-94 as a Word 6.0 doc - Lyle School of Engineering
... 2) Some of the multiple choice questions may have more than one correct answer listed. If so, circle all of the correct responses for the question. 3) Please print your name at the bottom of the remaining pages. 4) The last three pages of this exam contain supplementary figures and information that ...
... 2) Some of the multiple choice questions may have more than one correct answer listed. If so, circle all of the correct responses for the question. 3) Please print your name at the bottom of the remaining pages. 4) The last three pages of this exam contain supplementary figures and information that ...
Fast Optical Communication Components
... The Numerical Aperture of the fiber is the sine of the maximum angle of an incident beam that can be guided in the core ...
... The Numerical Aperture of the fiber is the sine of the maximum angle of an incident beam that can be guided in the core ...
EL Series Optical Fiber Patch Cords
... switch the optical signal being routed through the back of the video jack to the front connectors. ...
... switch the optical signal being routed through the back of the video jack to the front connectors. ...
Experiment 11 THE DIFFRACTION GRATING Light, when passed
... 3. Set the grating in its holder, making sure that you don't touch the lines of the grating. 4. Set the holder on the meter stick. Also set the scale on the meter-stick some distance away from the grating. This distance will be "L" and you can change it as it becomes convenient to do so in the expe ...
... 3. Set the grating in its holder, making sure that you don't touch the lines of the grating. 4. Set the holder on the meter stick. Also set the scale on the meter-stick some distance away from the grating. This distance will be "L" and you can change it as it becomes convenient to do so in the expe ...
Introduction to Fiber Optics
... travels in straight lines, so it is no problem. What if the hallway has a bend in it? You could place a mirror at the bend to reflect the light beam around the corner. What if the hallway is very winding with multiple bends? You might line the walls with mirrors and angle the beam so that it bounces ...
... travels in straight lines, so it is no problem. What if the hallway has a bend in it? You could place a mirror at the bend to reflect the light beam around the corner. What if the hallway is very winding with multiple bends? You might line the walls with mirrors and angle the beam so that it bounces ...
Long Haul Fiber Optic Transmission Systems : Modeling and
... systems and networks. • To simulate the various photonic components and also to do system level simulations. • To study different noise processes in photonic circuits and understand their impact on Q-factor or ...
... systems and networks. • To simulate the various photonic components and also to do system level simulations. • To study different noise processes in photonic circuits and understand their impact on Q-factor or ...
Measurement of the Wavelength by Diffraction Gratings
... Moreover the fringes are formed far apart from one another. For this purpose Fraunhofer made the first grating. An ideal diffraction grating consists of a large number of fine equidistant parallel grooves ruled on a plate of glass. The region between two grooves is transparent and allows the light t ...
... Moreover the fringes are formed far apart from one another. For this purpose Fraunhofer made the first grating. An ideal diffraction grating consists of a large number of fine equidistant parallel grooves ruled on a plate of glass. The region between two grooves is transparent and allows the light t ...
Main presentation title goes here.
... Dopants can added with other halide gases Layers of silica are deposited on the silicon using Flame Hydrolysis Deposition (FHD) Central layer doped with germanium to produce photosensitivity to UV light. ...
... Dopants can added with other halide gases Layers of silica are deposited on the silicon using Flame Hydrolysis Deposition (FHD) Central layer doped with germanium to produce photosensitivity to UV light. ...
el-1
... In the amplifier, Erbium atoms are pumped by a separate pump semiconductor laser (PSCL). Once in the excited state, these atoms will undergo stimulated emission when the signal pulses arrive at the EDFA. In this way, energy from the EDFA is added to the signal pulses, leading to their amplification. ...
... In the amplifier, Erbium atoms are pumped by a separate pump semiconductor laser (PSCL). Once in the excited state, these atoms will undergo stimulated emission when the signal pulses arrive at the EDFA. In this way, energy from the EDFA is added to the signal pulses, leading to their amplification. ...
James Powenski - Optical Computing
... substrate to make Thin film waveguides. n Mirrors can be simulated by using diffraction grating. ...
... substrate to make Thin film waveguides. n Mirrors can be simulated by using diffraction grating. ...
Diffraction grating has periodic structure that splits and diffracts light
... compressing devices, and many other optical instruments. A photographic slide with a fine pattern of purple lines forms a complex grating. For practical applications, gratings generally have ridges or rulings on their surface rather than dark lines. Such gratings can be either transmissive or reflec ...
... compressing devices, and many other optical instruments. A photographic slide with a fine pattern of purple lines forms a complex grating. For practical applications, gratings generally have ridges or rulings on their surface rather than dark lines. Such gratings can be either transmissive or reflec ...
Practice Problems_sources
... 4. (a)A GaAlAs laser diode has a 500 micron cavity length which has an effective absorption coefficient of 10 cm-1 . For uncoated facets the reflectivities are0.32 at each end. What is the optical gain at the lasing threshold? (Ans. 32.78 cm-1 ) (b) If one end of the lasers is coated with a dielectr ...
... 4. (a)A GaAlAs laser diode has a 500 micron cavity length which has an effective absorption coefficient of 10 cm-1 . For uncoated facets the reflectivities are0.32 at each end. What is the optical gain at the lasing threshold? (Ans. 32.78 cm-1 ) (b) If one end of the lasers is coated with a dielectr ...
fiberoptics project - Deveney-BSU
... Gaussian Beam profile with a much higher degree of precision. If time permits we would also like to program an interface and microcontroller in order to modulate the power of our laser so that we may be able to send and receive a viable communications signal. Due to the difficulty of coupling the fr ...
... Gaussian Beam profile with a much higher degree of precision. If time permits we would also like to program an interface and microcontroller in order to modulate the power of our laser so that we may be able to send and receive a viable communications signal. Due to the difficulty of coupling the fr ...
FIBERTech RoMack New Fiber Optic Switch
... environmental trace analysis. Our fiber optic switches are based on a patented micromechanical / micro‐optical design. This guarantees exceptional properties, significant flexibility and maximum long‐term stability for many applications. The switches are available for wide wavelengt ...
... environmental trace analysis. Our fiber optic switches are based on a patented micromechanical / micro‐optical design. This guarantees exceptional properties, significant flexibility and maximum long‐term stability for many applications. The switches are available for wide wavelengt ...
PowerPoint - ECSE - Rensselaer Polytechnic Institute
... Raman amplification uses a non-linear phenomenon called SRS. Multimode fibers have core diameters of 8-10 um Single mode means that exactly one wavelength passes through the fiber The single mode energy is present in both the core and cladding (latter known as evanescent wave) Th ...
... Raman amplification uses a non-linear phenomenon called SRS. Multimode fibers have core diameters of 8-10 um Single mode means that exactly one wavelength passes through the fiber The single mode energy is present in both the core and cladding (latter known as evanescent wave) Th ...
Ultrafast and High Resolution Crack Detection Using Fully
... with different applied strains. Temporal interference waveforms with different RF frequencies are generated. Spectrograms of two recorded waveforms are calculated using short-time Fourier transform (STFT) analysis and shown in Fig. 2 for uniform strain values of 180 and 625 µ , respectively. It is v ...
... with different applied strains. Temporal interference waveforms with different RF frequencies are generated. Spectrograms of two recorded waveforms are calculated using short-time Fourier transform (STFT) analysis and shown in Fig. 2 for uniform strain values of 180 and 625 µ , respectively. It is v ...
Fiber Bragg grating
A fiber Bragg grating (FBG) is a type of distributed Bragg reflector constructed in a short segment of optical fiber that reflects particular wavelengths of light and transmits all others. This is achieved by creating a periodic variation in the refractive index of the fiber core, which generates a wavelength-specific dielectric mirror. A fiber Bragg grating can therefore be used as an inline optical filter to block certain wavelengths, or as a wavelength-specific reflector.