Fast all-optical flip-flop memory exploiting the electric field nonlinearity of coherent laser amplifiers
The coherent nonlinear feedback in an integrated optical flip-flop is studied in order to demonstrate device applications of laser amplifiers operated above the laser threshold. The nonlinear feedback is provided by the stabilizing fields of the laser amplifiers, interfering with coherent optical re...
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| Veröffentlicht in: | IEEE journal of quantum electronics 2006-05, Vol.42 (5), p.509-516 |
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| container_end_page | 516 |
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| container_title | IEEE journal of quantum electronics |
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| creator | Oksanen, J. Tulkki, J. |
| description | The coherent nonlinear feedback in an integrated optical flip-flop is studied in order to demonstrate device applications of laser amplifiers operated above the laser threshold. The nonlinear feedback is provided by the stabilizing fields of the laser amplifiers, interfering with coherent optical reference fields. In both stable states of the flip-flop, the nonlinear feedback allows the laser amplifiers to maintain an ever present photon population in the laser modes and to have an approximately constant carrier population. This enables faster response (switching times below 25 ps are reached in this work)than in conventional active optical flip-flop structures. The operation of the flip-flop is studied using a rate equation model accounting for the carrier densities and the complex electric fields in the different cavity modes of the laser amplifiers. |
| doi_str_mv | 10.1109/JQE.2006.874004 |
| format | Article |
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The nonlinear feedback is provided by the stabilizing fields of the laser amplifiers, interfering with coherent optical reference fields. In both stable states of the flip-flop, the nonlinear feedback allows the laser amplifiers to maintain an ever present photon population in the laser modes and to have an approximately constant carrier population. This enables faster response (switching times below 25 ps are reached in this work)than in conventional active optical flip-flop structures. The operation of the flip-flop is studied using a rate equation model accounting for the carrier densities and the complex electric fields in the different cavity modes of the laser amplifiers.</description><identifier>ISSN: 0018-9197</identifier><identifier>EISSN: 1558-1713</identifier><identifier>DOI: 10.1109/JQE.2006.874004</identifier><identifier>CODEN: IEJQA7</identifier><language>eng</language><publisher>New York, NY: IEEE</publisher><subject>Amplifiers ; Carrier density ; Coherence ; Electric fields ; Exact sciences and technology ; Flip-flops ; Fundamental areas of phenomenology (including applications) ; Laser amplifiers ; Laser feedback ; Laser modes ; Laser optical systems: design and operation ; Laser stability ; Lasers ; Nonlinear feedback ; Nonlinear optical devices ; Nonlinear optics ; Optical amplifiers ; optical bistability ; Optical bistability, multistability and switching, including local field effects ; Optical feedback ; optical memory ; Optics ; Physics ; Resonators, cavities, amplifiers, arrays, and rings ; Semiconductor optical amplifiers ; Stimulated emission</subject><ispartof>IEEE journal of quantum electronics, 2006-05, Vol.42 (5), p.509-516</ispartof><rights>2006 INIST-CNRS</rights><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. 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The nonlinear feedback is provided by the stabilizing fields of the laser amplifiers, interfering with coherent optical reference fields. In both stable states of the flip-flop, the nonlinear feedback allows the laser amplifiers to maintain an ever present photon population in the laser modes and to have an approximately constant carrier population. This enables faster response (switching times below 25 ps are reached in this work)than in conventional active optical flip-flop structures. The operation of the flip-flop is studied using a rate equation model accounting for the carrier densities and the complex electric fields in the different cavity modes of the laser amplifiers.</description><subject>Amplifiers</subject><subject>Carrier density</subject><subject>Coherence</subject><subject>Electric fields</subject><subject>Exact sciences and technology</subject><subject>Flip-flops</subject><subject>Fundamental areas of phenomenology (including applications)</subject><subject>Laser amplifiers</subject><subject>Laser feedback</subject><subject>Laser modes</subject><subject>Laser optical systems: design and operation</subject><subject>Laser stability</subject><subject>Lasers</subject><subject>Nonlinear feedback</subject><subject>Nonlinear optical devices</subject><subject>Nonlinear optics</subject><subject>Optical amplifiers</subject><subject>optical bistability</subject><subject>Optical bistability, multistability and switching, including local field effects</subject><subject>Optical feedback</subject><subject>optical memory</subject><subject>Optics</subject><subject>Physics</subject><subject>Resonators, cavities, amplifiers, arrays, and rings</subject><subject>Semiconductor optical amplifiers</subject><subject>Stimulated emission</subject><issn>0018-9197</issn><issn>1558-1713</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNp90c9rFTEQB_AgCj6rZw9egmA97evk125ylNLWSkEK9bzkZSc2JbtZkzzw_femvELBQ08hyWcGZr6EfGSwZQzM2Y_biy0H6Ld6kADyFdkwpXTHBiZekw0A051hZnhL3pXy0K5SatiQcGlLpTbGLq01OBupj2HtfEwrnXFO-UDx7xpTqGH5Tes9Uozoag6O-oBxoktaYljQ5lAPNHnq0j1mXCqNtmCmdl5jaDKX9-SNt7Hgh6fzhPy6vLg7_97d_Ly6Pv920zmhWe3cNAA4MRiBvVMSrObtXQ3GcovSwG5gnEsQvTI7LzkTsGN6mrhh3Fs2GXFCvh77rjn92WOp4xyKwxjtgmlfRm16zoVQssnTFyXXbWkgoMHP_8GHtM9Lm2LUvVI9cDY0dHZELqdSMvpxzWG2-TAyGB8TGltC42NC4zGhVvHlqa0tbfM-28WF8lw2GKUV65v7dHQBEZ-_ey4lM-IfzteYmg</recordid><startdate>20060501</startdate><enddate>20060501</enddate><creator>Oksanen, J.</creator><creator>Tulkki, J.</creator><general>IEEE</general><general>Institute of Electrical and Electronics Engineers</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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| identifier | ISSN: 0018-9197 |
| ispartof | IEEE journal of quantum electronics, 2006-05, Vol.42 (5), p.509-516 |
| issn | 0018-9197 1558-1713 |
| language | eng |
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| source | IEEE Electronic Library (IEL) |
| subjects | Amplifiers Carrier density Coherence Electric fields Exact sciences and technology Flip-flops Fundamental areas of phenomenology (including applications) Laser amplifiers Laser feedback Laser modes Laser optical systems: design and operation Laser stability Lasers Nonlinear feedback Nonlinear optical devices Nonlinear optics Optical amplifiers optical bistability Optical bistability, multistability and switching, including local field effects Optical feedback optical memory Optics Physics Resonators, cavities, amplifiers, arrays, and rings Semiconductor optical amplifiers Stimulated emission |
| title | Fast all-optical flip-flop memory exploiting the electric field nonlinearity of coherent laser amplifiers |
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