1988 Fiscal Year Final Research Report Summary
Study on Ultra-high Frequency-Stabilization Techniques of Tunable Dye Lasers
| Project/Area Number |
63043024
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| Research Category |
Grant-in-Aid for Overseas Scientific Research
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| Allocation Type | Single-year Grants |
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| Section | Field Research |
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| Research Institution | The University of Electro-Communications |
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Principal Investigator |
TAKUMA Hiroshi The University of Electro-Communications, 新形レーザー研究センター, 教授 (70012200)
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| Co-Investigator(Kenkyū-buntansha) |
J.L. Hall 米国NBS, JILA, フェロー
SHIMIZU Kazuko The University of Electro-Communications, 電気通信学部, 講師 (30017446)
SHIMIZU Fujio University of Tokyo, 工学部, 教授 (00011156)
HALL J.L. JILA, NBS
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| Project Period (FY) |
1987 – 1988
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| Keywords | Dye Laser / Frequency Stabilization / RF Sideband Technique |
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| Research Abstract |
In 1987, techniqus of frequency stabilization were studied in the laboratory of Dr. J.L.Hall, It has become clear that the external stabilization of commercial dye laser with external phase modulator and acousto-optical modulator is adequate to obtain the stabilization of order of KHz. The rf sideband technique is powerful to obtain a low noise error signal. For further stabilization an intracavity AD^*P phase modulatoris required. In 1988, an external stabilization system was as-sembled in our laboratory using existing optical cavity. With this preliminary ex-perimenal setup, the frequency fluctuation of commercial dye laser was reduced to 170KHz. A Fabry Perot resonator for reference cavity was designed. We invited Dr.J.L.Hall to our laboratory. He gave us many advices about our system and we dis-cussed the possibility to improve the resolution of cross correration spectroscopy which had been developed in his laboratory using the technique of subnatural linewidth spectroscopy.
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