We demonstrate a photon-counting optical-time-domain reflectometer (OTDR) operating at a wavelength of 0.85 μm at room temperature with high sensitivity (3 × 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.
© 1988 Optical Society of America
Original Manuscript: August 28, 1987
Manuscript Accepted: December 10, 1987
Published: March 1, 1988
C. G. Bethea, S. Cova, G. Ripamonti, and B. F. Levine, "High-resolution and high-sensitivity optical-time-domain reflectometer," Opt. Lett. 13, 233-235 (1988)