| 单词 | Fabry-Perot laser |
| 释义 | Fabry-Perot laser A general purpose laser light source with a relatively narrow spectral width in the range of 3–6 nm. As a Fabry-Perot laser oscillates at several wavelengths, it emits a narrow range of less intense wavelengths around the center wavelength in which the power is concentrated. For example, a Fabry-Perot laser operating at a nominal wavelength of 1310 nm might also emit weaker signals at wavelengths ranging from 1307–1313 nm. This spectral width causes some amount of chromatic dispersion, which limits bandwidth in single-mode fiber (SMF) systems due to pulse spreading, which limits the bit rate. Fabry-Perot lasers Perot lasers are more precise than LEDs, are moderately fast at 1 Gbps or less, and are moderately priced. The Fabry-Perot laser is named for Charles Fabry and Alfred Pérot, who together invented the Fabry-Perot interferometer, or etalon, which formed the basis for this type of laser. See also DFB laser, etalon, laser, LED, and wavelength. |
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