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10.1038/srep10441 http://scihub22266oqcxt.onion/10.1038/srep10441 C4447072!4447072 !26020163     free     free     free Warning: file_get_contents(https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&id=26020163 &cmd=llinks): Failed to open stream: HTTP request failed! HTTP/1.1 429 Too Many Requests in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 215 Deprecated: Implicit conversion from float 219.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 219.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 219.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 219.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 219.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 253.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 253.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 253.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Warning: imagejpeg(C:\Inetpub\vhosts\kidney.de\httpdocs\phplern\26020163 .jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117       Sci+Rep 2015 ; 5 (ä): 10441 Nephropedia Template TP {{tp|p=26020163 |t=2015. Long-haul and high-resolution optical time domain reflectometry using superconducting nanowire single-photon detectors |pdf=|usr=}}{{26020163 }} gab.com Text Long-haul and high-resolution optical time domain reflectometry using superconducting nanowire single-photon detectors JO: Sci Rep http://www.kidney.de/pget.php?&tw=1&pmid=26020163 #FOAvip In classical optical time domain reflectometries (OTDRs), for sensing an 200-km-long fiber, the optical pulses launched are as wide as tens of microseconds to get enough signal-to-noise ratio, while it results in a two-point resolution of kilometers. To both reach long sensing distance and sub-kilometer resolution, we demonstrated a long-haul photon-counting OTDR using a superconducting nanowire single-photon detector. In a 40-minute-long measurement, we obtained a dynamic range of 46.9?dB, corresponding to a maximum sensing distance of 246.8?km, at a two-point resolution of 0.1?km. The time for measuring fiber after 100?km was reduced to one minute, while the fiber end at 217?km was still distinguished well from noise. After reducing the pulse width to 100?ns, the experimental two-point resolution was improved to 20?m while the maximum sensing distance was 209.47?km. Twit Text FOAVip Long-haul and high-resolution optical time domain reflectometry using superconducting nanowire single-photon detectors ????Sci Rep http://www.kidney.de/pget.php?&tw=1&pmid=26020163 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=26020163 #FOAvip English Wikipedia <ref>{{Cite pmid|26020163 }}</ref> Long-haul and high-resolution optical time domain reflectometry using superconducting nanowire single-photon detectors #MMPMID26020163 Zhao Q ; Xia L ; Wan C ; Hu J ; Jia T ; Gu M ; Zhang L ; Kang L ; Chen J ; Zhang X ; Wu P Sci Rep 2015[May]; 5 (ä): 10441 PMID26020163 show ga In classical optical time domain reflectometries (OTDRs), for sensing an 200-km-long fiber, the optical pulses launched are as wide as tens of microseconds to get enough signal-to-noise ratio, while it results in a two-point resolution of kilometers. To both reach long sensing distance and sub-kilometer resolution, we demonstrated a long-haul photon-counting OTDR using a superconducting nanowire single-photon detector. In a 40-minute-long measurement, we obtained a dynamic range of 46.9?dB, corresponding to a maximum sensing distance of 246.8?km, at a two-point resolution of 0.1?km. The time for measuring fiber after 100?km was reduced to one minute, while the fiber end at 217?km was still distinguished well from noise. After reducing the pulse width to 100?ns, the experimental two-point resolution was improved to 20?m while the maximum sensing distance was 209.47?km. äLong-haul and high-resolution optical time domain reflectometry using (epmc).pdf DeepDyve Pubget Overpricing