Presentation 1998/7/3
Limit of optical short pulse generation by actively-medelocked external-cavity semiconductor lasers
Masazumi MARUTANI, Kazuro KIKUCHI,
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Abstract(in English) Actively-modelocked external-cavity semiconductor lasers are good candidates for optical pulse sources used in optical communication systems because of their compactness. However, the pulse quality of such lasers is known to be strongly influenced by the carrier dynamics in the active layer. Since the carrier lifetime in semiconductor lasers is in the sub-ns region, the carrier density fluctuates in response to the pulse waveform. The carrier density fluctuation, in turn, causes the variation of the gain and the refractive index. We find a new mechanism originating from carrier density fluctuation which makes pulse trains unstable, and derive operation conditions for stable pulse generation.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) actively-modelocking / external-cavity semiconductor lasers / limit of optical short pulse generation / carrier density fluctuation / gain dynamics / carrier dynamics
Paper # OPE98-37,LQE98-21
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Committee LQE
Conference Date 1998/7/3(1days)
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Registration To Lasers and Quantum Electronics (LQE)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Limit of optical short pulse generation by actively-medelocked external-cavity semiconductor lasers
Sub Title (in English)
Keyword(1) actively-modelocking
Keyword(2) external-cavity semiconductor lasers
Keyword(3) limit of optical short pulse generation
Keyword(4) carrier density fluctuation
Keyword(5) gain dynamics
Keyword(6) carrier dynamics
1st Author's Name Masazumi MARUTANI
1st Author's Affiliation Resarch Center for Advanced Science and Technology, University of Tokyo()
2nd Author's Name Kazuro KIKUCHI
2nd Author's Affiliation Resarch Center for Advanced Science and Technology, University of Tokyo
Date 1998/7/3
Paper # OPE98-37,LQE98-21
Volume (vol) vol.98
Number (no) 167
Page pp.pp.-
#Pages 6
Date of Issue