distributed Bragg reflector

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• Distributed Bragg reflector — A distributed Bragg reflector (DBR) is a reflector used in waveguides, such as optical fibers. It is a structure formed from multiple layers of alternating materials with varying refractive index, or by periodic variation of some characteristic… …   Wikipedia

• Distributed Bragg reflector — Berechnete Reflektivität eines idealen DBRs Der englischsprachige Begriff distributed Bragg reflector (DBR) bezeichnet einen effizienten Reflektor, der in Lichtleitern oder in optischen Resonatoren eingesetzt wird. Er besteht aus alternierenden,… …   Deutsch Wikipedia

• Distributed Feedback Laser — (englisch, dt. Laser mit verteilter Rückkopplung), im Deutschen meist nur DFB Laser genannt, sind Laserdioden, in denen das aktive Material periodisch strukturiert ist. Die Strukturen wechselnder Brechzahl bilden ein eindimensionales… …   Deutsch Wikipedia

• Bragg diffraction — (also referred to as the Bragg formulation of X ray diffraction) was first proposed by William Lawrence Bragg and William Henry Bragg in 1913 in response to their discovery that crystalline solids produced surprising patterns of reflected X rays… …   Wikipedia

• Bragg's law — In physics, Bragg s law is the result of experiments into the diffraction of X rays or neutrons off crystal surfaces at certain angles, derived by physicist Sir William Lawrence Bragg [ There are some sources, like the Academic American… …   Wikipedia

• 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 adding a periodic variation to the… …   Wikipedia

• DBR — Distributed Bragg Reflector (Academic & Science » Electronics) * Destroyed Beyond Repair (Governmental » Military) * Data Base Requirements (Computing » General) * Data Base Requirements (Governmental » Military) * Dumbo Brooklyn Reproductions… …   Abbreviations dictionary

• DBR — Distributed Bragg Reflector Contributor: CASI …   NASA Acronyms

• Volume hologram — Volume holograms are holograms where the thickness of the recording material is much larger than the light wavelength used for recording. In this case diffraction of light from the hologram is possible only as Bragg diffraction, i.e., the light… …   Wikipedia

• Tunable laser — A tunable laser is a laser whose wavelength of operation can be altered in a controlled manner. While all laser gain media allow small shifts in output wavelength, only a few types of lasers allow continuous tuning over a significant wavelength… …   Wikipedia

• Vertical-cavity surface-emitting laser — The vertical cavity surface emitting laser (VCSEL; [v ɪxl] ) is a type of semiconductor laser diode with laser beam emission perpendicular from the top surface, contrary to conventional edge emitting semiconductor lasers (also in plane lasers)… …   Wikipedia