Abstract: A mobile electronic device that is configured to display travel-related information is disclosed. In one or more implementations, the electronic device includes a touch-sensitive display, the touch-sensitive display configured to receive one or more inputs, a memory operable to store one or more modules, and a processor communicatively coupled to the touch-sensitive display and to the memory. The processor is operable to execute the one or more modules to cause display of one or more graphical representations of travel-related data at the touch-sensitive display. The processor is also operable to cause display of a telephonic communication graphical interface and to cause a telephonic communication link to be established with a travel representative of a travel management company in response to an input received over the telephonic communication graphical interface.

Abstract: In a method and apparatus for measuring length of an optical fiber, a light source of a selected wavelength transmitted along the fiber is modulated by both a first and a second light modulation signal, which light modulation signals each differ in frequency from a first modulation frequency by a fixed amount. A time detector responds, alternately during a period, to the light signal as modulated by of each of the first and second light modulation signals by using each of the light signal modulation frequencies as a reference. Consequently, the output of the time detector has a phase responsive to the effective length of the fiber. A phase sensitive detector receives as a signal input an output of the time detector means. A second modulation frequency defines the period of alternation of response and provides a reference input to the phase sensitive detector.