Twin-ridge laser amplifier crosspoint switch

Mace, D.A.H.; Adams, M.J.; Singh, Jitendra; Fisher, Michael A.; Henning, I.D.; Duncan, W. J.

doi:10.1049/el:19890660

Cited by 16 publications

(2 citation statements)

References 4 publications

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“…The operating principle of these semiconductor active switches relies on the property of the semiconductors to change both the real and imaginary parts of their complex refractive index depending on either the injected carrier density (electrical control) [10] or the light injection (optical control) [12]. The optical control exploits the gain saturation effect which has been used for the investigation of both the theoretical and experimental TW [12][13][14] and FP [15,16] twin-guide switches with optical gain.…”

Section: Introductionmentioning

confidence: 99%

Accurate model of In_xGa_1−xAs_yP_1−y/InP active waveguides for optimal design of switches

Petruzzelli

2003

Int J Numerical Modelling

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SUMMARYBoth the longitudinal and transverse charge diffusion terms in the rate equations as well as the spreading effect of the injected charge in the active layer are taken into account for a complete model of active twin ridge InGaAsP/InP-waveguides. A dedicated computer code, relying on an optimized beam propagation method (BPM) based on the method of lines (MoL-BPM), is written. The computer code is used for the optimal design of a travelling-wave switch and to simulate the bidirectional propagation for the design of a Fabry-Perot switch. This last switch version is more compact with respect to the travelling wave (TW) version because a reduction of the switch length of about 20% is gained.

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Section: Introductionmentioning

confidence: 99%

Accurate model of In_xGa_1−xAs_yP_1−y/InP active waveguides for optimal design of switches

Petruzzelli

2003

Int J Numerical Modelling

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“…Active optoelectronic devices have also been proposed to effect directional coupling [6][7][8] and beam steering [9] in conjunction with optical amplification within a laser cavity . These devices use multi-stripe contacts and heterostructures to generate multiple cavity modes whose coupling can be controlled either electrically or optically to effect spatial or angular diversity of the output beam .…”

Section: Introductionmentioning

confidence: 99%