On approximate analytical solutions of rate equations for studying transient spectra of injection lasers

Marcuse, D.; Lee, Tien-Pei

doi:10.1109/jqe.1983.1072051

Cited by 82 publications

(15 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In order to avoid lengthy numerical integrations, approximate, but rather accurate, analytical modal expressions were obtained for similar semiconductor laser models [21]. Here, instead, we are interested in understanding the physical origin of the slow dynamics and its practical implications in modeling and numerical accuracy.…”

Section: Threshold Crossingmentioning

confidence: 99%

“…The latter remark can be particularly problematic when one tries to obtain information about the time-resolved spectral content. Indeed, on the one hand, it is known that for long semiconductor lasers the time necessary to attain the asymptotic spectrum is long compared to the total intensity transient [21]. On the other hand, the great variations (a factor of 2) in the time necessary to reach spectral equilibrium depending on the simulation choices should make one wonder about the meaningfulness of the predictions.…”

Section: Even Versus Odd Number Of Modesmentioning

confidence: 99%

See 1 more Smart Citation

Slow dynamics in semiconductor multi-longitudinal-mode laser transients governed by a master mode

Dokhane¹,

Puccioni²,

Lippi³

2012

Phys. Rev. A

View full text Add to dashboard Cite

We examine the response to the sudden switch of the pump parameter in a multimode semiconductor laser with intensity coupling on a model whose validity has been successfully compared to experimental results. We find the existence of a very slow modal evolution governed by a master mode, which reaches its steady state on a time scale that is a couple of orders of magnitude longer than that of the total intensity. The practical consequences for applications are examined, such as the temporal evolution of the spectral width of the laser emission and the time at which its steady state is attained. Issues related to modeling choices, such as the number of modes and their placement with respect to line center, are discussed.

show abstract

Section: Threshold Crossingmentioning

confidence: 99%

Section: Even Versus Odd Number Of Modesmentioning

confidence: 99%

Slow dynamics in semiconductor multi-longitudinal-mode laser transients governed by a master mode

Dokhane¹,

Puccioni²,

Lippi³

2012

Phys. Rev. A

View full text Add to dashboard Cite

show abstract

“…Figure 3.2 shows the example of calculated relaxation oscillations for a step input for the injection current. The actual laser oscillates at multimode lines close to the threshold but it recovers single mode oscillation well above the threshold (Marcuse and Lee 1983). We discuss single mode semiconductor lasers in this chapter, but the model used in Fig.…”

Section: Relaxation Oscillationmentioning

confidence: 99%

Semiconductor Lasers and Theory

Ohtsubo

2012

Springer Series in Optical Sciences

View full text Add to dashboard Cite

In this chapter, we discuss the oscillation conditions for semiconductor lasers and, then, derive the rate equations, which are the starting points of the study of chaotic dynamics in semiconductor lasers. The semiconductor laser described here is a Fabry-Perot type with a mono-layer of the active region, however other narrow-stripe edge-emitting lasers such as multi-quantum well (MQW) lasers and distributed feedback (DFB) lasers can be theoretically treated in the same manner as Fabry-Perot lasers. Therefore, the macroscopic features of these lasers show the same behaviors from the viewpoint of chaotic dynamics, although the detailed characteristics strongly depend on the laser structure and the particular values of the device parameters. The relaxation oscillation frequency, which is calculated from the rate equations plays an important role for the dynamics of semiconductor lasers. The Langevin terms, which are stochastic noise effects, are introduced in the rate equations. Some other fundamental characteristics of semiconductor lasers are also discussed.

show abstract

“…The SMSR reduction is caused by extremely large fluctuations in the electron density under gain-switching conditions, which results in the laser side modes being strongly excited [13]. This problem can clearly be seen from the optical spectrum of the output pulses from the gain-switched DFB laser, Fig.…”

Section: ) Electrical Clock Recoverymentioning

confidence: 99%

A high-speed optical star network using TDMA and all-optical demultiplexing techniques

Barry¹,

Guignard

Debeau

et al. 1996

IEEE J. Select. Areas Commun.

View full text Add to dashboard Cite

Abstract-The authors demonstrate the use of time-division multiplexing (TDM) to realize a high capacity optical star network. The fundamental element of the demonstration network is a 10 ps, wavelength tunable, low jitter, pulse source. Electrical data is encoded onto three optical pulse trains, and the resultant low duty cycle optical data channels are multiplexed together using 25 ps fiber delay lines. This gives an overall network capacity of 40 Gb/s. A nonlinear optical loop mirror (NOLM) is used to carry out the demultiplexing at the station receiver. The channel to be switched out can be selected by adjusting the phase of the electrical signal used to generate the control pulses for the NOLM. By using external injection into a gainswitched distributed feedsack (DFB) laser we are able to obtain very low jitter control pulses of 4-ps duration (rms jitter < 1 ps) after compression of the highly chirped gain switched pulses in normal dispersive fiber. This enables us to achieve excellent eye openings for the three demultiplexed channels. The difficulty in obtaining complete switching of the signal pulses is presented. This is shown to be due to deformation of the control pulse in the NOLM (caused by the soliton effect compression).The use of optical time-division multiplexing (OTDM) with alloptical switching devices is shown to be an excellent method to allow us to exploit as efficiently as possible the available fiber bandwidth, and to achieve very high bit-rate optical networks.

show abstract

On approximate analytical solutions of rate equations for studying transient spectra of injection lasers

Cited by 82 publications

References 8 publications

Slow dynamics in semiconductor multi-longitudinal-mode laser transients governed by a master mode

Slow dynamics in semiconductor multi-longitudinal-mode laser transients governed by a master mode

Semiconductor Lasers and Theory

A high-speed optical star network using TDMA and all-optical demultiplexing techniques

Contact Info

Product

Resources

About