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Twin core non-linear couplers with gain and loss

Twin core non-linear couplers with gain and loss
Twin core non-linear couplers with gain and loss
Twin core nonlinear couplers that include gain and loss are examined. Of various structures (ranging from couplers composed of two active cores and two lossy cores to those composed of one active or lossy core and one conventional core) considered, the most interesting case is the coupler composed of' one core with a certain amount of gain and the other core with an equal amount of loss where ideal low power switching is possible in a comparatively short coupler. The presence of gain in one core is found to be responsible for reduction in switching power and/or shortening in the device length, while the introduction of the loss in the other core plays a role of idealizing switching. A physical model is also presented to explain the demonstrated merits based on the operation of linear couplers with gain and loss.
0018-9197
239-245
Chen, Y.
aa3aa967-2aa4-499c-9265-8e6a7e7fb9e5
Snyder, A.W.
ebb30a9a-6fd2-4d96-8196-19b01f145115
Payne, D.N.
4f592b24-707f-456e-b2c6-8a6f750e296d
Chen, Y.
aa3aa967-2aa4-499c-9265-8e6a7e7fb9e5
Snyder, A.W.
ebb30a9a-6fd2-4d96-8196-19b01f145115
Payne, D.N.
4f592b24-707f-456e-b2c6-8a6f750e296d

Chen, Y., Snyder, A.W. and Payne, D.N. (1992) Twin core non-linear couplers with gain and loss. IEEE Journal of Quantum Electronics, 28 (1), 239-245. (doi:10.1109/3.119519).

Record type: Article

Abstract

Twin core nonlinear couplers that include gain and loss are examined. Of various structures (ranging from couplers composed of two active cores and two lossy cores to those composed of one active or lossy core and one conventional core) considered, the most interesting case is the coupler composed of' one core with a certain amount of gain and the other core with an equal amount of loss where ideal low power switching is possible in a comparatively short coupler. The presence of gain in one core is found to be responsible for reduction in switching power and/or shortening in the device length, while the introduction of the loss in the other core plays a role of idealizing switching. A physical model is also presented to explain the demonstrated merits based on the operation of linear couplers with gain and loss.

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Published date: 1992

Identifiers

Local EPrints ID: 78336
URI: https://eprints.soton.ac.uk/id/eprint/78336
ISSN: 0018-9197
PURE UUID: d1a926a1-283e-4c3e-b816-7ca1f217c5b3

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Date deposited: 11 Mar 2010
Last modified: 18 Jul 2017 23:25

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