Analysis of leakage current in buried heterostructure lasers with semiinsulating blocking layers

Carrier trapping due to Fe/sup 3+//Fe/sup 2+/ in InP

“…The relation between the decay time and the trap concentration is described by Contrary to an earlier assumption by Asada et al ( 5 ) two experimental facts support our result that a;, > o,, very clearly. First, the second term on the right hand side of Eq.…”

“…It is a most direct method to study the carrier trapping since the decay of the luminescence measured at the band gap energy is determined by the carrier transfer from the extended band states to the localized states in the trapping centers. This method alone (4)(5)(6).…”

<title>Two-dimensional simulation of quantum well lasers</title>

“…Then we solve (1-3, and 5), using a coupled Newton method. The new dielectric constant obtained from this is used to update the wave equation through (4) and to maximize the mode gain g with respect to the wavelength. (Here we assume single wavelength operation and ignore other lower g emissions which exist especially below threshold).…”

“…The optical equations needed are the complex scalar wave equation for the optical wave function, W,: v2w + kg(e -132)W = 0 , (4) and the photon rate equation for S, the number of photons in the cavity:…”

20 GHz Bandwidth High Dynamic Range 1.3 μm Buried Heterostructure Laser Modules

“…Improvement in the device resonance frequency and the linearity can be achieved by reducing leakage through the homojunctions, and by increasing the differential gain of the laser. The DC leakage through the current blocking layers of the BH lasers has been theoretically studied [11][12][13][14][15]. Previous work assumed the parasitic diffusion capacitance, generating RF leakage, to be constant with the laser bias current [2,16].…”