Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Martin M. Strasser"'
Autor:
Martin M. Strasser, Peter J. Winzer
Publikováno v:
AEU - International Journal of Electronics and Communications. 56:269-278
Summary We analyze the impact of modulation induced chirp on optically preamplified direct-detection communication systems transmitting over dispersion-free channels, as found in optical free-space communication links. We show that commonly used quan
Publikováno v:
AEU - International Journal of Electronics and Communications. 56:261-267
Summary We determine optimum bandwidths for optical and electrical filters in optically preamplified receivers, both for NRZ coding and RZ coding. Our simulations clearly reveal the trade-offs to be made when optimizing bandwidths: NRZ is typically l
Publikováno v:
Journal of Lightwave Technology. 19:1263-1273
We present a comprehensive treatment of optically preamplified direct detection receivers for non-return-to-zero (NRZ) and return-to-zero (RZ) on/off keying modulation, taking into account the influence of different (N)RZ optical pulse shapes, specif
Publikováno v:
IEEE Photonics Technology Letters. 14:831-833
In this letter, we investigate both experimentally and by means of simulations, the dependence of receiver sensitivity on the optical filter bandwidth as well as on the bandwidth of the detection electronics for the optical noise limited direct detec
Publikováno v:
LEOS 2001. 14th Annual Meeting of the IEEE Lasers and Electro-Optics Society (Cat. No.01CH37242).
We present measurements performed at a data rate of 10 Gb/s to experimentally verify these theoretical results. In the case of RZ coding we reached a sensitivity of 52 photons per bit (ppb) at a bit-error ratio BER = 10/sup -9/, which is about 1.4dB
Publikováno v:
Free-Space Laser Communication Technologies XIII.
We discuss several potential methods of generating optical RZ data signals, distinguishing between direct RZ modulation and modulation of a primary pulse train which is either generated by using a modelocked laser, by sinusoidally driving of an exter
Publikováno v:
Free-Space Laser Communication Technologies XIII.
We investigate the influence of chirp on free-space laser communication systems employing optically preamplified direct-detection receivers. We analyze the changes of receiver sensitivities in the presence of chirp and optimize both the optical and e
Publikováno v:
Free-Space Laser Communication Technologies XIII.
We give optimum values for the bandwidths of realistic optical and electrical filters (optical Fabry-Perot filters and fiber Bragg gratings, electrical Bessel filters and first order RC low pass filters), as well as for realistic NRZ and (33% duty cy
Publikováno v:
Technical Digest. Summaries of papers presented at the Conference on Lasers and Electro-Optics. Postconference Technical Digest (IEEE Cat. No.01CH37170).
Summary form only given. With the large-scale commercial deployment of Erbium-doped fiber amplifiers, optically preamplified direct detection (DD) receivers have become the technically most practicable way of achieving (nearly) quantum limited receiv
Publikováno v:
Journal of Lightwave Technology. 19:1794-1794