ABSTRACT We describe a linear laser with micro loops as end mirrors. FDTD simulation is used to design the mirror and laser cavity. The initial fabrication results with a lasing threshold of ∼0.4 mA is presented.
[show abstract][hide abstract] ABSTRACT: An explicit finite-difference time-domain (FDTD) scheme for wave
propagation in certain kinds of nonlinear media such as saturable
absorbers and gain layers in lasers is proposed here. This scheme is an
extension of the auxiliary differential equation FDTD approach and
incorporates rate equations that govern the time-domain dynamics of the
atomic populations in the medium. For small signal intensities and
slowly varying pulses, this method gives the same results as
frequency-domain methods using the linear susceptibility function.
Population dynamics for large signal intensities and the transient
response for rapidly varying pulses in two-level (absorber) and
four-level (gain) atomic media are calculated to demonstrate the
advantages of this approach
IEEE Transactions on Antennas and Propagation 04/1998; · 2.33 Impact Factor
Data provided are for informational purposes only. Although carefully collected, accuracy cannot be guaranteed. The impact factor represents a rough estimation of the journal's impact factor and does not reflect the actual current impact factor. Publisher conditions are provided by RoMEO. Differing provisions from the publisher's actual policy or licence agreement may be applicable.