spectral width


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spectral width

The amount of the electromagnetic spectrum that a laser beam covers. Thus far, it has been impossible to produce light pulses with zero spectral width. For example, a 1540 nm pulse might actually cover 1539.9 to 1540.1 nm, but not 1540.0 dead on. See optical bands.
References in periodicals archive ?
1 nm and 2 nm to guarantee fully reproducible spectral width measuring gap.
Therefore, due to the phase sensitivity of FWM, while the spectral width of the signal remains unchanged, any spectral broadening of the pump will cause spectral broadening of the idler in respect to the signal.
The data suggests that the maximum mean stress, positive or negative, with respect to irregularity factor appears to be related to the spectral width parameter (Equation 17).
The differentiation of AP-DCDM system with and without Guard Band (GB) in symbol duration has been demonstrated for 40Gbps system in [3], where the design with GB holds the spectral width of 100GHz and the design without GB occupies lesser Spectral width of 80 GHz.
The optical spectrum of a multi-longitudinal laser was measured showing a spectral width [DELTA][lambda] = 12nm, between 1539 nm and 1551 nm; a free spectral range [partial derivative][lambda] = 0.
Dysthe [5] derived a modified, 4th order version of the NLS equation that accounts for finite spectral width and describes the evolution of the spatial distribution of the complex envelope of the narrow-banded wave train in time.
An increasing number of today's signals have modulation present that can increase the spectral width to hundreds of megahertz or even multiple gigahertz.
Chiang, "An improved spectral width Doppler method for estimating Doppler angles in flows with existence of velocity gradients," Ultrasound in Medicine & Biology, pp.
Spectral width of each optical source is identical at the receiver.
AP-DCDM technique reduces the spectral width and it has small spectral width due to this fact has greater spectral efficiency and tolerance towards dispersion [5].
A typical peak wavelength of 905 nm (min at 895 nm, max at 915 nm) with a spectral width of 8 nm.