Associate Professor Shien
... multiplexing (WDM) technologies can provide high speed and secure optical links that are immune to EM interference and that can transmit information to long distance without using electronic repeaters. Among them, erbium-doped fiber amplifier (EDFA) is the most commercial product to date. However, i ...
... multiplexing (WDM) technologies can provide high speed and secure optical links that are immune to EM interference and that can transmit information to long distance without using electronic repeaters. Among them, erbium-doped fiber amplifier (EDFA) is the most commercial product to date. However, i ...
Abstract - nanopia 2015
... Wuhan Institute of Technology Wuhan 430205, China Email: [email protected] ...
... Wuhan Institute of Technology Wuhan 430205, China Email: [email protected] ...
Long Haul Fiber Optic Transmission Systems : Modeling and
... • 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 BER. • To develop engineering rules for the design of fiber-optic transmission systems. ...
... • 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 BER. • To develop engineering rules for the design of fiber-optic transmission systems. ...
CS - Classes
... transverse and longitudinal, gain profile Physics of laser gain, gain equation Gaussian beam propagation and optical cavities Transient effects – gain saturation, rate equations, Q-switching, mode-locking Common commercial laser systems: physics, technology, and performance Laboratory expe ...
... transverse and longitudinal, gain profile Physics of laser gain, gain equation Gaussian beam propagation and optical cavities Transient effects – gain saturation, rate equations, Q-switching, mode-locking Common commercial laser systems: physics, technology, and performance Laboratory expe ...
Microsoft Word Format - McMaster University > ECE
... From connection and guidance point of view: larger NA is better. However, larger NA may excite high order modes, hence introduce mode dispersion and reduce the transmission bandwidth. In SMF, larger NA yields more negative dispersion. This can be utilized to cancel the positive material dispersion. ...
... From connection and guidance point of view: larger NA is better. However, larger NA may excite high order modes, hence introduce mode dispersion and reduce the transmission bandwidth. In SMF, larger NA yields more negative dispersion. This can be utilized to cancel the positive material dispersion. ...
EPH7052 Optical Comm Chapter05 Amplifiers
... • able to operate at the 1300nm and 1550nm wavelengths (simultaneously) • wide bandwidth, up to 100nm • can be readily integrated along with other semiconductors and photonic devices into one monolithic chip called an optoelectronic integrated circuit (OEIC) ...
... • able to operate at the 1300nm and 1550nm wavelengths (simultaneously) • wide bandwidth, up to 100nm • can be readily integrated along with other semiconductors and photonic devices into one monolithic chip called an optoelectronic integrated circuit (OEIC) ...
3. The same topics of presentation for different students are
... 2. Ampli…cation of light in semiconductors. Inversion of population. Conditions of ampli…cation. Gain. 3. Semiconductor Laser. Principle of operation. Rate equations. Steady state and small signal regimes. Cavity resonator (Fabry-Perot). 4. Types, design and operation regimes of semiconductor lasers ...
... 2. Ampli…cation of light in semiconductors. Inversion of population. Conditions of ampli…cation. Gain. 3. Semiconductor Laser. Principle of operation. Rate equations. Steady state and small signal regimes. Cavity resonator (Fabry-Perot). 4. Types, design and operation regimes of semiconductor lasers ...
Document
... give up some of its energy (also in the form of light) and return to a lower-energy (more stable) state (“stimulated emission”). The laser diode in the diagram generates a high-powered (between 10 and 200mW) beam of light at a wavelength such that the erbium ions will absorb it and jump to their exc ...
... give up some of its energy (also in the form of light) and return to a lower-energy (more stable) state (“stimulated emission”). The laser diode in the diagram generates a high-powered (between 10 and 200mW) beam of light at a wavelength such that the erbium ions will absorb it and jump to their exc ...
EE 566 - Optical Communications
... principles of photonic devices and their applications in optical communications systems. Topics covered include the waveguide theory, optical fibers, semiconductor lasers and detectors, noise, electrooptic modulation, acoutooptic effect, coupled mode analysis and grating, soliton, wavelength-divison ...
... principles of photonic devices and their applications in optical communications systems. Topics covered include the waveguide theory, optical fibers, semiconductor lasers and detectors, noise, electrooptic modulation, acoutooptic effect, coupled mode analysis and grating, soliton, wavelength-divison ...
Optical amplifier
An optical amplifier is a device that amplifies an optical signal directly, without the need to first convert it to an electrical signal. An optical amplifier may be thought of as a laser without an optical cavity, or one in which feedback from the cavity is suppressed. Optical amplifiers are important in optical communication and laser physics.There are several different physical mechanisms that can be used to amplify a light signal, which correspond to the major types of optical amplifiers. In doped fibre amplifiers and bulk lasers, stimulated emission in the amplifier's gain medium causes amplification of incoming light. In semiconductor optical amplifiers (SOAs), electron-hole recombination occurs. In Raman amplifiers, Raman scattering of incoming light with phonons in the lattice of the gain medium produces photons coherent with the incoming photons. Parametric amplifiers use parametric amplification.