Main Page | See live article | Alphabetical index In telecommunication, mode volume is the number of bound modes that an optical fiber is capable of supporting. Note: The mode volume M is approximately given by V 2/2 and (V 2/2)[g /(g +2)] respectively for step-index and power-law profile fibers, where g is the profile parameter, and V is the normalized frequency greater than 5. Source: from Federal Standard 1037C and from MIL-STD-188 This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.