Wavelength tunable optical time-domain reflectometry based on wavelength swept fiber laser employing two-dimensional digital micro-mirror array

• Published in: Optics communications Vol. 282; no. 6; pp. 1191 - 1195
• Main Authors: Shin, Woojin, Yu, Bong-Ahn, Lee, Yeung Lak, Noh, Young-Chul, Ko, Do-Kyeong, Oh, Kyunghwan
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 15-03-2009; Elsevier
• Subjects: Applied sciences; Exact sciences and technology; Fiber lasers; Fundamental areas of phenomenology (including applications); Lasers; Optical telecommunications; Optics; Physics; Telecommunications; Telecommunications and information theory; Optical time-domain reflectometry; Mirror antenna; Fault location; Optical fiber networks; Wavelength division multiplexing; Two dimensional model; Passive optical network; Passive networks; Optical communication; Mirrors; Antenna arrays; Defect detection; Fiber lasers
• ISSN: 0030-4018; 1873-0310
• DOI: 10.1016/j.optcom.2008.11.076

We demonstrate a cost effective wavelength tunable optical time-domain reflectometry (OTDR) for wavelength division multiplexing passive optical networks (WDM-PON). In order to realize the unique wavelength tunable optical time-domain reflectometry (OTDR), the wavelength swept fiber laser was developed by a digital micro-mirror array device (DMD), and the correlation OTDR (COTDR) technique was used. We successfully detected the fault location at the remote node fibers with 20
m resolution and fast wavelength setting speed of ∼15
μs in conventional band (C-band).