Presentation 1997/5/12
Characteristics of the feedback induced noise in self-sustained pulsation lasers
Y. Ishikawa, A. Kanamori, Y. Aoki, M. Yamada,
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Abstract(in English) Self-sustained pulsation semiconductor lasers which are less influenced by the optical feedback from surface of the optical disc, are under development. However, the feedback induced noise is not reduced when operating the pulsation lasers under some operating conditions. Furthermore, neither fluctuation of the pulsation nor a condition of generating the excess noise by the optical feedback has revealed yet. In this work, we show a generating condition for the feedback induced noise basing on changing the reflecting distance and feedback ratio for four different types of pulsation lasers. We classify the induced noise into 2 or 3 regions in the dependence on the reflecting point. Each region is characterized by fluctuation of the pulsation frequency and spectrum power. The characteristic at each region are explained in terms of the time difference of the feedback pulse from the self-sustained pulse.
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Keyword(in English) semiconductor lasers / self-sustained pulsation lasers / feedback induced noise
Paper # LQE97-1
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Committee LQE
Conference Date 1997/5/12(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) Characteristics of the feedback induced noise in self-sustained pulsation lasers
Sub Title (in English)
Keyword(1) semiconductor lasers
Keyword(2) self-sustained pulsation lasers
Keyword(3) feedback induced noise
1st Author's Name Y. Ishikawa
1st Author's Affiliation Faculty of Engineering, Kanazawa University()
2nd Author's Name A. Kanamori
2nd Author's Affiliation Faculty of Engineering, Kanazawa University
3rd Author's Name Y. Aoki
3rd Author's Affiliation Faculty of Engineering, Kanazawa University
4th Author's Name M. Yamada
4th Author's Affiliation Faculty of Engineering, Kanazawa University
Date 1997/5/12
Paper # LQE97-1
Volume (vol) vol.97
Number (no) 35
Page pp.pp.-
#Pages 6
Date of Issue