The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Foi desenvolvido um transceptor óptico de 40 Gbit/s usando um novo módulo OTDM MUX. O módulo MUX OTDM (Optical-Time-Division-Multiplexing), o componente principal do transmissor, consistia em um divisor óptico, dois moduladores de eletroabsorção (EA) e um combinador em um pequeno pacote selado. À medida que os caminhos ópticos divididos percorrem o "ar" no módulo, uma relação de fase óptica bastante estável entre pulsos intercalados de bits pode ser mantida. Com o módulo OTDM MUX, a seleção entre o formato convencional Return-to-Zero (RZ convencional) e o formato RZ com supressão de portadora (CS-RZ) é realizada alterando ligeiramente o comprimento de onda do diodo laser. Em um receptor, o trem de dados ópticos de 40 Gbit/s é opticamente demultiplexado para o trem óptico de 10 Gbit/s, antes de ser detectado pelo receptor O/E para o formato RZ de 10 Gbit/s. Avaliações consecutivas MUX-DEMUX do transceptor exibiram boas sensibilidades abaixo de -30 dBm medidas na entrada óptica de 40 Gbit/s para atingir a taxa de erro de bit (BER) de 10-9. Outra característica única do sistema transceptor era a capacidade de troca de espectro. A operação estável de multiplexação RZ e CS-RZ foi confirmada no experimento. Uma vez ajustado o sinal óptico de 40 Gbit/s para o formato CS-RZ, o espectro óptico manteria seu formato de espectro CS por um longo tempo, em benefício das características estáveis de transmissão longa. No experimento de loop recirculante empregando o transceptor OTDM MUX, a maior margem de potência foi observada com sucesso com o formato CS-RZ do que com o formato RZ convencional, indicando que a codificação adequada de RZ convencional e CS-RZ foi realizada com este protótipo de transceptor. No caso do formato CS-RZ, o erro livre (BER < 10-9) a transmissão ao longo de 720 km foi alcançada com o longo alcance do amplificador repetidor de 120 km.
Yoshiharu FUJISAKU
Masatoshi KAGAWA
Toshio NAKAMURA
Hitoshi MURAI
Hiromi T. YAMADA
Shigeru TAKASAKI
Kozo FUJII
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Yoshiharu FUJISAKU, Masatoshi KAGAWA, Toshio NAKAMURA, Hitoshi MURAI, Hiromi T. YAMADA, Shigeru TAKASAKI, Kozo FUJII, "Development of 40 Gbit/s Transceiver Using a Novel OTDM MUX Module, and Stable Transmission with Carrier-Suppressed RZ Format" in IEICE TRANSACTIONS on Communications,
vol. E85-B, no. 2, pp. 416-422, February 2002, doi: .
Abstract: 40 Gbit/s optical transceiver using a novel OTDM MUX module has been developed. OTDM (Optical-Time-Division-Multiplexing) MUX module, the core component of the transmitter, consisted of a optical splitter, two electro-absorption (EA) modulators and a combiner in a sealed small package. As the split optical paths run through the "air" in the module, greatly stable optical phase relation between bit-interleaved pulses could be maintained. With the OTDM MUX module, the selection between conventional Return-to-Zero (conventional-RZ) format and carrier-suppressed RZ (CS-RZ) format is performed by slightly changing the wavelength of laser-diode. In a receiver, 40 Gbit/s optical data train is optically demultiplexed to 10 Gbit/s optical train, before detected by the O/E receiver for 10 Gbit/s RZ format. Back-to-back MUX-DEMUX evaluations of the transceiver exhibited good sensitivities of under -30 dBm measured at 40 Gbit/s optical input to achieve the bit-error-rate (BER) of 10-9. Another unique feature of the transceiver system was a spectrum switch capability. The stable RZ and CS-RZ multiplexing operation was confirmed in the experiment. Once we adjust the 40 Gbit/s optical signal to CS-RZ format, the optical spectrum would maintain its CS spectrum shape for a long time to the benefit of the stable long transmission characteristics. In the recirculating loop experiment employing the OTDM MUX transceiver, the larger power margin was successfully observed with CS-RZ format than with conventional-RZ format, indicating that proper encoding of conventional-RZ and CS-RZ was realized with this prototype transceiver. In the case of CS-RZ format, the error free (BER < 10-9) transmission over 720 km was achieved with the long repeater amplifier span of 120 km.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e85-b_2_416/_p
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@ARTICLE{e85-b_2_416,
author={Yoshiharu FUJISAKU, Masatoshi KAGAWA, Toshio NAKAMURA, Hitoshi MURAI, Hiromi T. YAMADA, Shigeru TAKASAKI, Kozo FUJII, },
journal={IEICE TRANSACTIONS on Communications},
title={Development of 40 Gbit/s Transceiver Using a Novel OTDM MUX Module, and Stable Transmission with Carrier-Suppressed RZ Format},
year={2002},
volume={E85-B},
number={2},
pages={416-422},
abstract={40 Gbit/s optical transceiver using a novel OTDM MUX module has been developed. OTDM (Optical-Time-Division-Multiplexing) MUX module, the core component of the transmitter, consisted of a optical splitter, two electro-absorption (EA) modulators and a combiner in a sealed small package. As the split optical paths run through the "air" in the module, greatly stable optical phase relation between bit-interleaved pulses could be maintained. With the OTDM MUX module, the selection between conventional Return-to-Zero (conventional-RZ) format and carrier-suppressed RZ (CS-RZ) format is performed by slightly changing the wavelength of laser-diode. In a receiver, 40 Gbit/s optical data train is optically demultiplexed to 10 Gbit/s optical train, before detected by the O/E receiver for 10 Gbit/s RZ format. Back-to-back MUX-DEMUX evaluations of the transceiver exhibited good sensitivities of under -30 dBm measured at 40 Gbit/s optical input to achieve the bit-error-rate (BER) of 10-9. Another unique feature of the transceiver system was a spectrum switch capability. The stable RZ and CS-RZ multiplexing operation was confirmed in the experiment. Once we adjust the 40 Gbit/s optical signal to CS-RZ format, the optical spectrum would maintain its CS spectrum shape for a long time to the benefit of the stable long transmission characteristics. In the recirculating loop experiment employing the OTDM MUX transceiver, the larger power margin was successfully observed with CS-RZ format than with conventional-RZ format, indicating that proper encoding of conventional-RZ and CS-RZ was realized with this prototype transceiver. In the case of CS-RZ format, the error free (BER < 10-9) transmission over 720 km was achieved with the long repeater amplifier span of 120 km.},
keywords={},
doi={},
ISSN={},
month={February},}
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TY - JOUR
TI - Development of 40 Gbit/s Transceiver Using a Novel OTDM MUX Module, and Stable Transmission with Carrier-Suppressed RZ Format
T2 - IEICE TRANSACTIONS on Communications
SP - 416
EP - 422
AU - Yoshiharu FUJISAKU
AU - Masatoshi KAGAWA
AU - Toshio NAKAMURA
AU - Hitoshi MURAI
AU - Hiromi T. YAMADA
AU - Shigeru TAKASAKI
AU - Kozo FUJII
PY - 2002
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E85-B
IS - 2
JA - IEICE TRANSACTIONS on Communications
Y1 - February 2002
AB - 40 Gbit/s optical transceiver using a novel OTDM MUX module has been developed. OTDM (Optical-Time-Division-Multiplexing) MUX module, the core component of the transmitter, consisted of a optical splitter, two electro-absorption (EA) modulators and a combiner in a sealed small package. As the split optical paths run through the "air" in the module, greatly stable optical phase relation between bit-interleaved pulses could be maintained. With the OTDM MUX module, the selection between conventional Return-to-Zero (conventional-RZ) format and carrier-suppressed RZ (CS-RZ) format is performed by slightly changing the wavelength of laser-diode. In a receiver, 40 Gbit/s optical data train is optically demultiplexed to 10 Gbit/s optical train, before detected by the O/E receiver for 10 Gbit/s RZ format. Back-to-back MUX-DEMUX evaluations of the transceiver exhibited good sensitivities of under -30 dBm measured at 40 Gbit/s optical input to achieve the bit-error-rate (BER) of 10-9. Another unique feature of the transceiver system was a spectrum switch capability. The stable RZ and CS-RZ multiplexing operation was confirmed in the experiment. Once we adjust the 40 Gbit/s optical signal to CS-RZ format, the optical spectrum would maintain its CS spectrum shape for a long time to the benefit of the stable long transmission characteristics. In the recirculating loop experiment employing the OTDM MUX transceiver, the larger power margin was successfully observed with CS-RZ format than with conventional-RZ format, indicating that proper encoding of conventional-RZ and CS-RZ was realized with this prototype transceiver. In the case of CS-RZ format, the error free (BER < 10-9) transmission over 720 km was achieved with the long repeater amplifier span of 120 km.
ER -