Theoretical Study of Noise Reduction Effects by Superimposed Pulse Modulation
Summary :
Intensity noise reduction effects by superimposed pulse modulation are theoretically analyzed for LD inherent noise, feedback light noise, and modal noise. It is shown that noise spectrum spreading effects due to LD mode partition noise are very effective to reduce mode hopping noise and modal noise, that a short pulse width completely suppress beat noise and mode hopping noise based on submode structures constructed by feedback light, and that modal noise is effectively reduced by LD longitudinal mode linewidth broadening effect as long as a fiber bandwidth is sufficiently narrow compared with the broadened LD linewidth. It is also shown that LD quantum intensity noise increases for LD multimode operation, and that feedback light noise based on injection locking effect can not be suppressed without system parameter adjustment.
- Publication
- IEICE TRANSACTIONS on transactions Vol.E68-E No.3 pp.180-187
- Publication Date
- 1985/03/25
- Publicized
- Online ISSN
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- Type of Manuscript
- PAPER
- Category
- Transmission Systems
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Tetsuya KANADA, "Theoretical Study of Noise Reduction Effects by Superimposed Pulse Modulation" in IEICE TRANSACTIONS on transactions,
vol. E68-E, no. 3, pp. 180-187, March 1985, doi: .
Abstract: Intensity noise reduction effects by superimposed pulse modulation are theoretically analyzed for LD inherent noise, feedback light noise, and modal noise. It is shown that noise spectrum spreading effects due to LD mode partition noise are very effective to reduce mode hopping noise and modal noise, that a short pulse width completely suppress beat noise and mode hopping noise based on submode structures constructed by feedback light, and that modal noise is effectively reduced by LD longitudinal mode linewidth broadening effect as long as a fiber bandwidth is sufficiently narrow compared with the broadened LD linewidth. It is also shown that LD quantum intensity noise increases for LD multimode operation, and that feedback light noise based on injection locking effect can not be suppressed without system parameter adjustment.
URL: https://global.ieice.org/en_transactions/transactions/10.1587/e68-e_3_180/_p
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@ARTICLE{e68-e_3_180,
author={Tetsuya KANADA, },
journal={IEICE TRANSACTIONS on transactions},
title={Theoretical Study of Noise Reduction Effects by Superimposed Pulse Modulation},
year={1985},
volume={E68-E},
number={3},
pages={180-187},
abstract={Intensity noise reduction effects by superimposed pulse modulation are theoretically analyzed for LD inherent noise, feedback light noise, and modal noise. It is shown that noise spectrum spreading effects due to LD mode partition noise are very effective to reduce mode hopping noise and modal noise, that a short pulse width completely suppress beat noise and mode hopping noise based on submode structures constructed by feedback light, and that modal noise is effectively reduced by LD longitudinal mode linewidth broadening effect as long as a fiber bandwidth is sufficiently narrow compared with the broadened LD linewidth. It is also shown that LD quantum intensity noise increases for LD multimode operation, and that feedback light noise based on injection locking effect can not be suppressed without system parameter adjustment.},
keywords={},
doi={},
ISSN={},
month={March},}
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TY - JOUR
TI - Theoretical Study of Noise Reduction Effects by Superimposed Pulse Modulation
T2 - IEICE TRANSACTIONS on transactions
SP - 180
EP - 187
AU - Tetsuya KANADA
PY - 1985
DO -
JO - IEICE TRANSACTIONS on transactions
SN -
VL - E68-E
IS - 3
JA - IEICE TRANSACTIONS on transactions
Y1 - March 1985
AB - Intensity noise reduction effects by superimposed pulse modulation are theoretically analyzed for LD inherent noise, feedback light noise, and modal noise. It is shown that noise spectrum spreading effects due to LD mode partition noise are very effective to reduce mode hopping noise and modal noise, that a short pulse width completely suppress beat noise and mode hopping noise based on submode structures constructed by feedback light, and that modal noise is effectively reduced by LD longitudinal mode linewidth broadening effect as long as a fiber bandwidth is sufficiently narrow compared with the broadened LD linewidth. It is also shown that LD quantum intensity noise increases for LD multimode operation, and that feedback light noise based on injection locking effect can not be suppressed without system parameter adjustment.
ER -
English
