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Influence of Nonlinear Gain Saturation on the Time-Bandwidth Product of Optical Pulse from a Gain-Switched Semiconductor Laser

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Abstract

It is found numerically that the time-bandwidth product (TBP) of optical pulse from a gain-switched semiconductor laser operating under a sufficient gain saturation condition increases monotonously with increasing modulation amplitude. This enhancement of the TBP becomes remarkable for longer-wavelength semiconductor lasers (1.3, 1.55 μm) having large value of the gain compression factor ε (∼ 10−23 m3), making the pulse chirp estimation using the TBP difficult.

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Authors and Affiliations

  1. Faculty of Engineering, Osaka Prefecture University, Department of Physics and Electronics, Gakuen-cho 1-1, Sakai, Osaka, 599-8531, Japan

    Kenji Wada, Tetsuya Matsuyama & Hiromichi Horinaka

  2. Oyokoden Applied Photonics Lab Co., Ltd., 5301, Haga, Okayama, Okayama, 701-1296, Japan

    Yoshio CHO

Authors
  1. Kenji Wada
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  2. Tetsuya Matsuyama
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  3. Hiromichi Horinaka
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  4. Yoshio CHO
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Correspondence to Kenji Wada.

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Wada, K., Matsuyama, T., Horinaka, H. et al. Influence of Nonlinear Gain Saturation on the Time-Bandwidth Product of Optical Pulse from a Gain-Switched Semiconductor Laser. OPT REV 6, 494–496 (1999). https://doi.org/10.1007/s10043-999-0494-5

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  • DOI: https://doi.org/10.1007/s10043-999-0494-5

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