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32 Gbit/s multimode fibre transmission using high-speed, low current density 850 nm VCSEL

32 Gbit/s multimode fibre transmission using high-speed, low current density 850 nm VCSEL

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Error free transmission over multimode fibre at data rates up to 32 Gbit/s at 25°C and 25 Gbit/s at 85°C using an oxide confined 850 nm VCSEL biased at a current density of 11–14 kA/cm2 is demonstrated. The VCSEL is optimised for high-speed by reducing capacitance and self-heating and by using strained InGaAs quantum wells for high differential gain.

References

    1. 1)
      • Anan, T., Suzuki, N., Yashiki, K., Fukatsu, K., Hatakeyama, H., Akagawa, T., Tokutome, K., Tsuji, M.: `High-speed 1.1-µm range InGaAs VCSELs', Proc. Optical Fiber Communication Conf., 2008, San Diego, CA, USA, paper OThS5.
    2. 2)
    3. 3)
      • Johnson, R.H., Kuchta, D.M.: `30 Gb/s directly modulated 850 nm datacom VCSELs', Proc. Conf. Lasers and Electro-Optics, 2008, San Jose, CA, USA, post-deadline paper CPDB2.
    4. 4)
http://iet.metastore.ingenta.com/content/journals/10.1049/el.2009.0201
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