Abstract
We have designed and fabricated a high speed 850 nm oxide-confined vertical cavity surface emitting laser with an oxide aperture dimension of ~4 μm and a threshold current ITH = 0.53 mA at room temperature (20 °C). It demonstrates a modulation bandwidth of 21.2 GHz, and achieves a laser relative intensity noise reaching standard quantum limit 2hν/P0 = -154.3 dB/Hz at high bias I/ITH = 10. Furthermore, error-free data transmission at 40 Gb/s is obtained at I = 6.5 mA which corresponds to an energy/data efficiency of 431 fJ/bit.
Original language | English (US) |
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Article number | 6589110 |
Pages (from-to) | 289-292 |
Number of pages | 4 |
Journal | IEEE Photonics Technology Letters |
Volume | 26 |
Issue number | 3 |
DOIs | |
State | Published - Feb 1 2014 |
Keywords
- 40 Gb/s error free data transmission
- VCSEL
- ultralow laser relative intensity noise
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Electrical and Electronic Engineering