2013 Fiscal Year Final Research Report
GHz mode-locked pulse laser with simultaneously stabilized optical frequency and repetition rate and its applications
| Project/Area Number |
21226002
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| Research Category |
Grant-in-Aid for Scientific Research (S)
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| Allocation Type | Single-year Grants |
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| Research Field |
Applied optics/Quantum optical engineering
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| Research Institution | Tohoku University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
YOSHIDA Masato 東北大学, 電気通信研究所, 准教授 (10333890)
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| Project Period (FY) |
2009-05-11 – 2014-03-31
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| Keywords | レーザー / 光標準・計測 / コヒーレント伝送 |
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| Research Abstract |
We have demonstrated for the first time a mode-locked pulse laser with simultaneo-usly stabilized optical frequency and repetition rate by using a Cs atomic resonance and an acetylene mol-ecular absorption line, respectively. We also successfully demonstrated a 440 fs short pulse generation byemploying a saturable absorber in the laser cavity for narrowing the pulse width. Furthermore,we applied apulse source based on a frequency stabilized CW laser to coherent optical pulse transmission, and we have successfully demonstrated for the first time a 1.92 Tbit/s single channel transmission with 64 QAM signal.
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