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Effective mode volume information


For an optical fiber, the effective mode volume is the square of the product of the diameter of the near-field pattern and the sine of the radiation angle of the far-field pattern. The diameter of the near-field radiation pattern is defined here as the full width at half maximum and the radiation angle at half maximum radiant intensity. Effective mode volume is proportional to the breadth of the relative distribution of power amongst the modes in a multimode fiber. It is not truly a spatial volume but rather an "optical volume" equal to the product of area and solid angle. The power divided by the effective mode volume is proportional to the radiance of the light emitted by the fiber.

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Effective mode volume

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For an optical fiber, the effective mode volume is the square of the product of the diameter of the near-field pattern and the sine of the radiation angle...

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Mandrel wrapping

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is to slightly modify the effective refractive index in the curved region, which locally reduces the effective mode volume of the fibre. This causes optical...

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The 7 Habits of Highly Effective People

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The 7 Habits of Highly Effective People, first published in 1989, is a business and self-help book written by Stephen R. Covey. Covey defines effectiveness...

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Modes of mechanical ventilation are one of the most important aspects of the usage of mechanical ventilation. The mode refers to the method of inspiratory...

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Nanophotonic resonator

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cavity divided by the effective mode field volume, F = Q / V mode {\displaystyle F=Q/V_{\text{mode}}} . Therefore, reducing the volume of an optical cavity...

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Unreal mode

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In x86 computing, unreal mode, also big real mode, flat real mode, or voodoo mode is a variant of real mode, in which one or more segment descriptors has...

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Protection ring

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not often cost-effective, despite the potential advantages for security and stability. Ultimately, the purpose of distinct operating modes for the CPU is...

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Effective medium approximations

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In materials science, effective medium approximations (EMA) or effective medium theory (EMT) pertain to analytical or theoretical modeling that describes...

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Modic changes

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back pain, are not effective in treating Modic changes. Conversely, long term antibiotic treatment has been shown to be an effective treatment if done...

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Glossary of video game terms

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game mode A distinct configuration that varies game mechanics and affects gameplay, such as a single-player mode vs a multiplayer mode, campaign mode, endless...

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X86 assembly language

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processors support five modes of operation for x86 code, Real Mode, Protected Mode, Long Mode, Virtual 86 Mode, and System Management Mode, in which some instructions...

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Color Graphics Adapter

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composite monitor. Text modes: 40 × 25 with 8 × 8 pixel font (effective resolution of 320 × 200) 80 × 25 with 8 × 8 pixel font (effective resolution of 640 × 200)...

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Aerosol

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Condensation of mass causes the mode of the particle-size distributions of the aerosol to increase; conversely, evaporation causes the mode to decrease. Nucleation...

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Asteroseismology

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Asteroseismology is the study of oscillations in stars. Stars have many resonant modes and frequencies, and the path of sound waves passing through a star depends...

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X86

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in 64-bit mode. Note: The ?IL registers are only available in 64-bit mode. Real Address mode, commonly called Real mode, is an operating mode of 8086 and...

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Hybrid drive

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entirely by the device (self-optimized mode), or through placement "hints" supplied by the operating system (host-hinted mode). There are two main "hybrid" storage...

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DisplayPort

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with a single connection, via a hub or daisy-chaining HBR2 mode with 17.28 Gbit/s of effective video bandwidth allows four simultaneous 1080p60 displays...

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Medical ultrasound

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signal. The dimensions of B-mode images are voltage as a function of angle and two-way time. M-mode: In motion mode, A-mode pulses are emitted in succession...

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Doppler ultrasonography

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components: brightness mode (B-mode) showing anatomy of the organs, and Doppler mode (showing blood flow) superimposed on the B-mode. Meanwhile, spectral...

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Enhanced Graphics Adapter

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ratio of 1:1.2. Text modes: 40 × 25 with 8×8 pixel font (effective resolution of 320 × 200) 80 × 25 with 8×8 pixel font (effective resolution of 640 × 200)...

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X86 memory segmentation

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shown here for clarity. They are usually omitted.) The effective 20-bit address space of real mode limits the addressable memory to 220 bytes, or 1,048...

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MOSFET

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In an enhancement mode MOSFET, voltage applied to the gate terminal increases the conductivity of the device. In depletion mode transistors, voltage...

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VESA BIOS Extensions

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VBE provide only a real mode interface, which cannot be used without a significant performance penalty from within protected mode operating systems. Consequently...

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Direct memory access

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for relatively long periods of time. The mode is also called "Block Transfer Mode". The cycle stealing mode is used in systems in which the CPU should...

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Variable air volume

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Variable air volume (VAV) is a type of heating, ventilating, and/or air-conditioning (HVAC) system. Unlike constant air volume (CAV) systems, which supply...

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Numerical aperture

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determined from the indices of refraction alone. The number of bound modes, the mode volume, is related to the normalized frequency and thus to the numerical...

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Minecraft

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modes include a survival mode (in which players must acquire resources to build in the world and maintain health), creative mode (in which players have...

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