| 21. |
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| 22. |
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| 23. |
- Westbergh, Petter, 1981, et al.
(författare)
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32 Gb/s transmission experiments using high speed 850 nm VCSELs
- 2009
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Ingår i: Conference on Lasers and Electro-Optics (CLEO). - 2162-2701. - 9781557528698 ; , s. 1-2
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Konferensbidrag (refereegranskat)abstract
- We demonstrate error free transmission at bit rates up to 32 Gb/s at room temperature and 25 Gb/s at 85degC using a 9 mum oxide aperture 850 nm VCSEL. The VCSEL design is optimized for high speed operation by minimizing parasitics, reducing self-heating, and using strained InGaAs quantum wells to improve differential gain.
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| 24. |
- Westbergh, Petter, 1981, et al.
(författare)
-
32 Gbit/s multimode fibre transmission using high-speed, low current density 850 nm VCSEL
- 2009
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Ingår i: Electronics Letters. - : Institution of Engineering and Technology (IET). - 1350-911X .- 0013-5194. ; 45:7, s. 366 - 368
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Tidskriftsartikel (refereegranskat)abstract
- Error free transmission over multimode fibre at data rates up to 32 Gbit/s at 25C and 25 Gbit/s at 85C 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.
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| 25. |
- Westbergh, Petter, 1981, et al.
(författare)
-
A high-speed laser for future data-communication links
- 2009
-
Ingår i: SPIE Newsroom. - : SPIE-Intl Soc Optical Eng. - 1818-2259.
-
Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- Optimized designs significantly improve the transmission rate of standard short-wavelength light sources.
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| 26. |
- Westbergh, Petter, 1981, et al.
(författare)
-
High speed large aperture 850 nm VCSELs
- 2009
-
Ingår i: International Nano-Optoelectronics Workshop (iNOW).
-
Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- Error-free transmission over 50 m of OM3 fiber at 32 Gbit/s is demonstrated at a bias current density of 11 kA/cm2 using a large aperture 850 nm oxide-confined VCSEL optimized for high speed operation.
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| 27. |
- Westbergh, Petter, 1981, et al.
(författare)
-
High speed, low current density 850 nm VCSELs
- 2009
-
Ingår i: IEEE Journal of Selected Topics in Quantum Electronics. - 1558-4542 .- 1077-260X. ; 15:3, s. 694-703
-
Tidskriftsartikel (refereegranskat)abstract
- We report on the design, fabrication, and evaluation of large-aperture, oxide-confined 850 nm vertical cavity surface emitting lasers (VCSELs) with high modulation bandwidth at low current densities. We also compare the use of InGaAs and GaAs quantum wells (QWs) in the active region. Both VCSELs reach an output power of 9 mW at room temperature, with a thermal resistance of 1.9deg C/mW. The use of InGaAs QWs improves the high-speed performance and enables a small-signal modulation bandwidth of 20 GHz at 25degC and 15 GHz at 85degC. At a constant bias current density of only 11 kA/cm2, we generate open eyes under large-signal modulation at bit rates up to 25 Gbit/s at 85degC and 30 Gbit/s at 55degC.
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| 28. |
- Westbergh, Petter, 1981, et al.
(författare)
-
Large aperture 850 nm VCSEL operating at 28 Gbit/s
- 2008
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Ingår i: Semiconductor Laser Conference, 2008. ISLC 2008. IEEE 21st International. - 9781424417827 ; , s. 7-8
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Konferensbidrag (refereegranskat)abstract
- We report on large aperture, oxide-confined VCSELs at 850 nm with modulation bandwidths in excess of 20 GHz and demonstrate large-signal modulation up to 28 Gbit/s at a bias current density of only 10 kA/cm2.
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| 29. |
- Westbergh, Petter, 1981, et al.
(författare)
-
Large aperture 850 nm VCSELs operating at bit rates up to 25 Gbit/s
- 2008
-
Ingår i: Electronics Letters. - 1350-911X .- 0013-5194. ; 44:15, s. 907-908
-
Tidskriftsartikel (refereegranskat)abstract
- Small signal modulation bandwidths in excess of 20 GHz are demonstrated for a 9 μm oxide aperture VCSEL emitting at 850 nm. Open eye diagrams are obtained under large signal modulation at bit rates up to 25 Gbit/s with a bias current density of only 10 kA/cm2.
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| 30. |
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