High-resolution and high-sensitivity optical-time-domain reflectometer.
We demonstrate a photon-counting optical-time-domain reflectometer (OTDR) operating at a wavelength of 0.85 microm at room temperature with high sensitivity (3 x 10(-15) W) at high resolution (1.5 cm, 150 psec). Measurements of splice losses and Rayleigh scattering losses less then 0.1 dB with centimeter resolution are demonstrated to be possible with such an OTDR.
Bethea
C G
CG
Levine
B F
BF
Cova
S
S
Ripamonti
G
G