Intensity dependent thresholding and switching in the bridge mutually pumped phase conjugator
Intensity dependent thresholding and switching in the bridge mutually pumped phase conjugator
The large electro-optic coefficient of photorefractive materials such as BaTiO3 has allowed the observation of several exotic phase conjugators, such as the Self-Pumped Phase Conjugator (SPPC) and, more recently, the Mutually Pumped Phase Conjugator (MPPC), in which two simultaneous phase conjugate (PC) outputs are produced via the interaction of two mutually incoherent beams within a photorefractive material. Several generic configurations of MPPC have been observed, such as the Double Phase Conjugate Mirror (DPCM), the Mutually incoherent beam coupler (MIBC) and the Bridge MPPC.
Wave mixing configurations in photorefractive materials generally show input beam intensity ratio dependent effects (both the MIBC and DPCM have been shown to posses beam ratio dependent reflectivities and thresholds for example), but the only total input intensity dependent effect usually observed is the rise time dependence of the refractive index gratings. Here we report the observation of total intensity dependent PC reflectivity in the Bridge MPPC, which has allowed the investigation of optical thresholding and bistability/hysteresis.
James, S.W.
02f53f34-3244-4898-90df-246ca2b466db
Eason, R.W.
e38684c3-d18c-41b9-a4aa-def67283b020
1991
James, S.W.
02f53f34-3244-4898-90df-246ca2b466db
Eason, R.W.
e38684c3-d18c-41b9-a4aa-def67283b020
James, S.W. and Eason, R.W.
(1991)
Intensity dependent thresholding and switching in the bridge mutually pumped phase conjugator.
3rd European Quantum Electronics Conference (EQEC '91) & 10th National Quantum Electronics Conference (QE10), Edinburgh, United Kingdom.
27 - 30 Aug 1991.
Record type:
Conference or Workshop Item
(Paper)
Abstract
The large electro-optic coefficient of photorefractive materials such as BaTiO3 has allowed the observation of several exotic phase conjugators, such as the Self-Pumped Phase Conjugator (SPPC) and, more recently, the Mutually Pumped Phase Conjugator (MPPC), in which two simultaneous phase conjugate (PC) outputs are produced via the interaction of two mutually incoherent beams within a photorefractive material. Several generic configurations of MPPC have been observed, such as the Double Phase Conjugate Mirror (DPCM), the Mutually incoherent beam coupler (MIBC) and the Bridge MPPC.
Wave mixing configurations in photorefractive materials generally show input beam intensity ratio dependent effects (both the MIBC and DPCM have been shown to posses beam ratio dependent reflectivities and thresholds for example), but the only total input intensity dependent effect usually observed is the rise time dependence of the refractive index gratings. Here we report the observation of total intensity dependent PC reflectivity in the Bridge MPPC, which has allowed the investigation of optical thresholding and bistability/hysteresis.
More information
Published date: 1991
Additional Information:
Paper NDThP5
Venue - Dates:
3rd European Quantum Electronics Conference (EQEC '91) & 10th National Quantum Electronics Conference (QE10), Edinburgh, United Kingdom, 1991-08-27 - 1991-08-30
Organisations:
Optoelectronics Research Centre
Identifiers
Local EPrints ID: 77439
URI: http://eprints.soton.ac.uk/id/eprint/77439
PURE UUID: e79cf940-5b9b-41d1-a6d8-3eed3fe19ccb
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Date deposited: 11 Mar 2010
Last modified: 14 Mar 2024 02:33
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Author:
S.W. James
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