A Stable 2-W Supply Optical Powering System
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- Yasui Takako
- NTT Photonics Laboratories
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- Ohwaki Junichi
- NTT Telecommunications Energy Laboratories
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- Mino Masato
- NTT Telecommunications Energy Laboratories
Bibliographic Information
- Other Title
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- Stable 2 W Supply Optical Powering System
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Abstract
A 2-W supply optical powering system that maintains electrical isolation is described. The output power of this system is stable and higher than that of conventional systems, and is not affected by environmental stresses, such as bends in the optical fiber or increased PV cell temperature, owing to its feedback control function. The system mainly consists of laser diodes, optical fibers, photovoltaic (PV) cells, and a feedback control circuit, and can deliver 2 W of electrical power. In the feedback control circuit, the PV cell output current is compared to the target current, and the laser output is controlled to equalize them. The system also has a safety function that shuts down the laser if an optical fiber is cut. The system was tested under a high-voltage condition, and the results indicate that it will be useful for driving sensors and measurement equipment used in high-voltage environments.
Journal
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- IEEJ Transactions on Electronics, Information and Systems
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IEEJ Transactions on Electronics, Information and Systems 122 (7), 1089-1093, 2002
The Institute of Electrical Engineers of Japan
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Details 詳細情報について
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- CRID
- 1390001204609815808
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- NII Article ID
- 130006845120
- 10008844198
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- NII Book ID
- AN10065950
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- ISSN
- 13488155
- 03854221
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- NDL BIB ID
- 6204499
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed