Optical Transmission Experiments at 400 MB

Takeshi ITO; Susumu MACHIDA

Optical Transmission Experiments at 400 MB

Takeshi ITO, Susumu MACHIDA

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This paper is concerned with an experimental approach to determining the feasibility of an optical PCM system at high bit rates. One necessary development is a high speed modulation technique using a semiconductor injection laser. The other is a high sensitivity receiving technique. First, this paper shows that high speed modulation with less pattern effect and less extinction ratio degradation can be effectively performed by adding the undershoot and overshoot to the driving current pulse in an injection laser. Second, this paper shows that a current feedback amplifier, consisting of an emitter-grounded bipolar transistor, is advantageous in high sensitivity of a high speed optical PCM receiving circuit, and to increase in repeater spacing. Finally, it is shown experimentally that the repeater spacing can be lengthened up to 5 km with a conventional graded index multimode fiber or up to 5.9 km with a single-mode fiber. It is confirmed by experiments that an optical transmission could be applied to a long distance and large capacity transmission system.

Publication: IEICE TRANSACTIONS on transactions Vol.E60-E No.3 pp.123-130

Publication Date: 1977/03/25

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Type of Manuscript: PAPER

Category: Optical and Quantum Electronics

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Takeshi ITO
Susumu MACHIDA

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Takeshi ITO, Susumu MACHIDA, "Optical Transmission Experiments at 400 MB" in IEICE TRANSACTIONS on transactions, vol. E60-E, no. 3, pp. 123-130, March 1977, doi: .
Abstract: This paper is concerned with an experimental approach to determining the feasibility of an optical PCM system at high bit rates. One necessary development is a high speed modulation technique using a semiconductor injection laser. The other is a high sensitivity receiving technique. First, this paper shows that high speed modulation with less pattern effect and less extinction ratio degradation can be effectively performed by adding the undershoot and overshoot to the driving current pulse in an injection laser. Second, this paper shows that a current feedback amplifier, consisting of an emitter-grounded bipolar transistor, is advantageous in high sensitivity of a high speed optical PCM receiving circuit, and to increase in repeater spacing. Finally, it is shown experimentally that the repeater spacing can be lengthened up to 5 km with a conventional graded index multimode fiber or up to 5.9 km with a single-mode fiber. It is confirmed by experiments that an optical transmission could be applied to a long distance and large capacity transmission system.
URL: https://global.ieice.org/en_transactions/transactions/10.1587/e60-e_3_123/_p

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@ARTICLE{e60-e_3_123,
author={Takeshi ITO, Susumu MACHIDA, },
journal={IEICE TRANSACTIONS on transactions},
title={Optical Transmission Experiments at 400 MB},
year={1977},
volume={E60-E},
number={3},
pages={123-130},
abstract={This paper is concerned with an experimental approach to determining the feasibility of an optical PCM system at high bit rates. One necessary development is a high speed modulation technique using a semiconductor injection laser. The other is a high sensitivity receiving technique. First, this paper shows that high speed modulation with less pattern effect and less extinction ratio degradation can be effectively performed by adding the undershoot and overshoot to the driving current pulse in an injection laser. Second, this paper shows that a current feedback amplifier, consisting of an emitter-grounded bipolar transistor, is advantageous in high sensitivity of a high speed optical PCM receiving circuit, and to increase in repeater spacing. Finally, it is shown experimentally that the repeater spacing can be lengthened up to 5 km with a conventional graded index multimode fiber or up to 5.9 km with a single-mode fiber. It is confirmed by experiments that an optical transmission could be applied to a long distance and large capacity transmission system.},
keywords={},
doi={},
ISSN={},
month={March},}

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TY - JOUR
TI - Optical Transmission Experiments at 400 MB
T2 - IEICE TRANSACTIONS on transactions
SP - 123
EP - 130
AU - Takeshi ITO
AU - Susumu MACHIDA
PY - 1977
DO -
JO - IEICE TRANSACTIONS on transactions
SN -
VL - E60-E
IS - 3
JA - IEICE TRANSACTIONS on transactions
Y1 - March 1977
AB - This paper is concerned with an experimental approach to determining the feasibility of an optical PCM system at high bit rates. One necessary development is a high speed modulation technique using a semiconductor injection laser. The other is a high sensitivity receiving technique. First, this paper shows that high speed modulation with less pattern effect and less extinction ratio degradation can be effectively performed by adding the undershoot and overshoot to the driving current pulse in an injection laser. Second, this paper shows that a current feedback amplifier, consisting of an emitter-grounded bipolar transistor, is advantageous in high sensitivity of a high speed optical PCM receiving circuit, and to increase in repeater spacing. Finally, it is shown experimentally that the repeater spacing can be lengthened up to 5 km with a conventional graded index multimode fiber or up to 5.9 km with a single-mode fiber. It is confirmed by experiments that an optical transmission could be applied to a long distance and large capacity transmission system.
ER -