Optically coupled cavities for wavelength switching

An optical bistable device which presents hysteresis behavior is proposed and experimentally demonstrated. The system finds applications in wavelength switching, pulse reshaping and optical bistability. It is based on two optically coupled cavities named master and slave. Each cavity includes a semi...

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Detalles Bibliográficos
Autores principales: Costanzo Caso, Pablo Alejandro, Granieri, Sergio, Siahmakoun, Azad
Formato: Articulo
Lenguaje:Español
Publicado: 2011
Materias:
Ciencias Exactas
Física
hysteresis behavior
fiber Bragg gratings
semiconductor optical amplifier
variable optical coupler
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/127317
https://iopscience.iop.org/article/10.1088/1742-6596/274/1/012022
Aporte de:SEDICI (UNLP) de Universidad Nacional de La Plata Ver origen
id I19-R120-10915-127317
record_format dspace
spelling I19-R120-10915-1273172021-10-26T20:07:05Z http://sedici.unlp.edu.ar/handle/10915/127317 https://iopscience.iop.org/article/10.1088/1742-6596/274/1/012022 issn:1742-6596 Optically coupled cavities for wavelength switching Costanzo Caso, Pablo Alejandro Granieri, Sergio Siahmakoun, Azad 2011-01-01 2021-10-26T18:10:18Z es Ciencias Exactas Física hysteresis behavior fiber Bragg gratings semiconductor optical amplifier variable optical coupler An optical bistable device which presents hysteresis behavior is proposed and experimentally demonstrated. The system finds applications in wavelength switching, pulse reshaping and optical bistability. It is based on two optically coupled cavities named master and slave. Each cavity includes a semiconductor optical amplifier (SOA), acting as the gain medium of the laser, and two pair of fiber Bragg gratings (FBG) which define the lasing wavelength (being different in each cavity). Finally, a variable optical coupler (VOC) is employed to couple both cavities. Experimental characterization of the system performance is made analyzing the effects of the coupling coefficient between the two cavities and the driving current in each SOA. The properties of the hysteretic bistable curve and switching can be controlled by adjusting these parameters and the loss in the cavities. By selecting the output wavelength (λ<sub>1</sub> or λ<sub>2</sub>) with an external filter it is possible to choose either the invert or non-invert switched signal. Experiments were developed employing both optical discrete components and a photonic integrated circuit. They show that for 8 m-long cavities the maximum switching frequency is about 500 KHz, and for 4 m-long cavities a minimum rise-time about 21 ns was measured. The switching time can be reduced by shortening the cavity lengths and using photonic integrated circuits. Centro de Investigaciones Ópticas Articulo Articulo http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International (CC BY 4.0) application/pdf
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Español
topic Ciencias Exactas
Física
hysteresis behavior
fiber Bragg gratings
semiconductor optical amplifier
variable optical coupler
spellingShingle Ciencias Exactas
Física
hysteresis behavior
fiber Bragg gratings
semiconductor optical amplifier
variable optical coupler
Costanzo Caso, Pablo Alejandro
Granieri, Sergio
Siahmakoun, Azad
Optically coupled cavities for wavelength switching
topic_facet Ciencias Exactas
Física
hysteresis behavior
fiber Bragg gratings
semiconductor optical amplifier
variable optical coupler
description An optical bistable device which presents hysteresis behavior is proposed and experimentally demonstrated. The system finds applications in wavelength switching, pulse reshaping and optical bistability. It is based on two optically coupled cavities named master and slave. Each cavity includes a semiconductor optical amplifier (SOA), acting as the gain medium of the laser, and two pair of fiber Bragg gratings (FBG) which define the lasing wavelength (being different in each cavity). Finally, a variable optical coupler (VOC) is employed to couple both cavities. Experimental characterization of the system performance is made analyzing the effects of the coupling coefficient between the two cavities and the driving current in each SOA. The properties of the hysteretic bistable curve and switching can be controlled by adjusting these parameters and the loss in the cavities. By selecting the output wavelength (λ<sub>1</sub> or λ<sub>2</sub>) with an external filter it is possible to choose either the invert or non-invert switched signal. Experiments were developed employing both optical discrete components and a photonic integrated circuit. They show that for 8 m-long cavities the maximum switching frequency is about 500 KHz, and for 4 m-long cavities a minimum rise-time about 21 ns was measured. The switching time can be reduced by shortening the cavity lengths and using photonic integrated circuits.
format Articulo
Articulo
author Costanzo Caso, Pablo Alejandro
Granieri, Sergio
Siahmakoun, Azad
author_facet Costanzo Caso, Pablo Alejandro
Granieri, Sergio
Siahmakoun, Azad
author_sort Costanzo Caso, Pablo Alejandro
title Optically coupled cavities for wavelength switching
title_short Optically coupled cavities for wavelength switching
title_full Optically coupled cavities for wavelength switching
title_fullStr Optically coupled cavities for wavelength switching
title_full_unstemmed Optically coupled cavities for wavelength switching
title_sort optically coupled cavities for wavelength switching
publishDate 2011
url http://sedici.unlp.edu.ar/handle/10915/127317
https://iopscience.iop.org/article/10.1088/1742-6596/274/1/012022
work_keys_str_mv AT costanzocasopabloalejandro opticallycoupledcavitiesforwavelengthswitching
AT granierisergio opticallycoupledcavitiesforwavelengthswitching
AT siahmakounazad opticallycoupledcavitiesforwavelengthswitching
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