| Project/Area Number |
13650036
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Applied optics/Quantum optical engineering
|
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| Research Institution | GUNMA UNIVERSITY |
|---|
Principal Investigator |
TAKAHASHI Yoshitaka Gunma University, Faculty of Engineering, Associate Professor, 工学部, 助教授 (30216767)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
YOKOTA Masayuki Gunma University, Faculty of Engineering, Assistant, 工学部, 助手 (80323335)
|
|---|
| Project Period (FY) |
2001 – 2002
|
| Project Status |
Completed (Fiscal Year 2002)
|
| Budget Amount *help |
¥3,400,000 (Direct Cost: ¥3,400,000)
Fiscal Year 2002: ¥1,300,000 (Direct Cost: ¥1,300,000)
Fiscal Year 2001: ¥2,100,000 (Direct Cost: ¥2,100,000)
|
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| Keywords | Fiber Laser / Ring Laser / Semiconductor Optical Amplifier / Optical Sensing |
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| Research Abstract |
A new type of a fiber ring laser with a SOA (semiconductor optical amplifier) has been developed which is applicable to a novel fiber sensor. The laser contains a SOA as the optical gain medium which also acts as polarizer, fiber collimators, and Faraday rotators. Introducing a birefringent medium in the laser cavity results in a frequency difference between the counter-propagating oscillations in proportion to the birefringence. When a fused quartz cell was introduced as a sensing medium, in proportion to applied pressure a shift in the frequency difference was observed, which suggests that this laser is a promising frequency-domain fiber sensor.
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