SwePub
Sök i SwePub databas

  Utökad sökning

Träfflista för sökning "WFRF:(Gustavsson Johan 1974 ) ;pers:(Andrekson Peter 1960);mspu:(conferencepaper)"

Sökning: WFRF:(Gustavsson Johan 1974 ) > Andrekson Peter 1960 > Konferensbidrag

  • Resultat 1-8 av 8
Sortera/gruppera träfflistan
   
NumreringReferensOmslagsbildHitta
1.
  • Castro, Jose Manuel, et al. (författare)
  • 50 Gb/s 4-PAM over 200 m of High Bandwidth MMF using a 850 nm VCSEL
  • 2015
  • Ingår i: Optical Fiber Communication Conference 2015, Los Angeles, California, United States, 22–26 March 2015. - 9781557529374
  • Konferensbidrag (refereegranskat)abstract
    • Experiments for transmission of 50Gb/s, 4-PAM using direct modulated VCSEL over 100m and 200m of MMF with partial dispersion compensation properties are presented.
  •  
2.
  • Gustavsson, Johan, 1974, et al. (författare)
  • High-speed 850-nm VCSELs for 40 Gb/s transmission
  • 2010
  • Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
    • We have explored the possibility to extend the data transmission rate for standard 850-nm GaAs-based VCSELs beyond the 10 Gbit/s limit of today's commercially available directly-modulated devices. By sophisticated tailoring of the design for high-speed performance we demonstrate that 10 Gb/s is far from the upper limit. For example, the thermal conductivity of the bottom mirror is improved by the use of binary compounds, and the electrical parasitics are kept at a minimum by incorporating a large diameter double layered oxide aperture in the design. We also show that the intrinsic high speed performance is significantly improved by replacing the traditional GaAs QWs with strained InGaAs QWs in the active region. The best overall performance is achieved for a device with a 9 μm diameter oxide aperture, having in a threshold current of 0.6 mA, a maximum output power of 9 mW, a thermal resistance of 1.9 °C/mW, and a differential resistance of 80 Ω. The measured 3dB bandwidth exceeds 20 GHz, and we experimentally demonstrate that the device is capable of error-free transmission (BER
  •  
3.
  • Larsson, Anders, 1957, et al. (författare)
  • High speed VCSELs for optical interconnects
  • 2012
  • Ingår i: Conference Proceedings - International Conference on Indium Phosphide and Related Materials. - 1092-8669. - 9781467317252 ; , s. 269-272
  • Konferensbidrag (refereegranskat)abstract
    • This paper presents an overview of our recent work on high speed, oxide confined, 850 nm vertical cavity surface emitting lasers (VCSELs). With proper active region and cavity designs, and techniques for reducing capacitance and thermal impedance, we have reached a modulation bandwidth of 23 GHz and demonstrated 40 Gbps transmission. Using an integrated mode filter for reducing the spectral width we have extended the reach on multimode fiber at 25 Gbps from 100 to 500 m. Improved link capacity was also demonstrated using a more spectrally efficient multi-level modulation format (4-PAM). Finally, a MEMS-technology for wafer scale integration of tunable high speed VCSELs was developed, enabling a tuning range of 24 nm, a 6 GHz modulation bandwidth, and 5 Gbps transmission.
  •  
4.
  • Lengyel, Tamas, 1986, et al. (författare)
  • Impact of Damping on 50 Gbps 4-PAM Modulation of 25G Class VCSELs
  • 2017
  • Ingår i: Optics InfoBase Conference Papers. - 2162-2701. - 9781943580231 ; , s. paper W3G.2-
  • Konferensbidrag (refereegranskat)abstract
    • We investigate the effects of photon lifetime and damping of the modulation response on the quality of 50 Gbps 4-PAM signal generation with directly modulated 25G class VCSELs and identify the appropriate values for the K-factor.
  •  
5.
  • Safaisini, Rashid, 1981, et al. (författare)
  • 22 Gb/s error-free data transmission beyond 1 km of multi-mode fiber using 850 nm VCSELs
  • 2013
  • Ingår i: Proceedings of SPIE - The International Society for Optical Engineering. - : SPIE. - 0277-786X .- 1996-756X. - 9780819494085 ; 8639
  • Konferensbidrag (refereegranskat)abstract
    • The first error-free data transmission beyond 1 km of multi-mode fiber at bit-rates exceeding 20 Gb/s is demonstrated using a high modulation bandwidth, quasi-single mode (SMSR similar to 20 dB) 850 nm VCSEL. A VCSEL with small similar to 3 mu m aperture shows quasi-single mode operation with a narrow spectral width. The top mirror reflectivity of the VCSEL is optimized for high speed and high output power by shallow etching. A combination of narrow spectral width and high optical power reduces the effects of fiber dispersion and fiber and connector losses and enables such a long transmission distance at high bit-rates.
  •  
6.
  • Simpanen, Ewa, 1987, et al. (författare)
  • 1060 nm single and multimode VCSELs for up to 50 Gb/s modulation
  • 2017
  • Ingår i: Proceedings of IEEE Photonics Conference 2017. - : IEEE. - 9781509065776 ; , s. 65-66
  • Konferensbidrag (refereegranskat)abstract
    • We present the design and performance of 1060 nm VCSELs with up to 50 Gb/s intrinsic speed and demonstrate 25 Gb/s transmission over 1000 m of 1060 nm optimized MMF using a single-mode VCSEL and mode-selective launch.
  •  
7.
  • Szczerba, Krzysztof, 1985, et al. (författare)
  • 30 Gbps 4-PAM transmission over 200m of MMF using an 850 nm VCSEL
  • 2011
  • Ingår i: European Conference and Exposition on Optical Communications, ECOC. - 2162-2701. - 9781557529312 ; , s. 1-3
  • Konferensbidrag (refereegranskat)abstract
    • Real time, error free 4-PAM transmission at 25 Gbps and 30 Gbps over 300 m and200m of multimode fiber, respectively, using a VCSEL operating at the wavelength of 850 nm.
  •  
8.
  •  
Skapa referenser, mejla, bekava och länka
  • Resultat 1-8 av 8

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Stäng

Kopiera och spara länken för att återkomma till aktuell vy