skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: In-situ OTDR for low-cost optical networks using a single-mode 850-nm VCSEL.

Journal Article · · Proposed for publication in Electronics Letters.
OSTI ID:971801

A new approach to optical time-domain reflectometry (OTDR) is proposed that will enable distributed fault monitoring in singlemode VCSEL-based networks. In situ OTDR uses the transmitter VCSEL already resident in data transceivers as both emitter and resonant-cavity photodiode for fault location measurements. Also valuable at longer wavelengths, the concept is demonstrated here using an 850 nm oxide-confined VCSEL and simple electronics. The dead times and sensitivity obtained are adequate to detect the majority of faults anticipated in local- and metropolitan-area networks.

Research Organization:
Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC04-94AL85000
OSTI ID:
971801
Report Number(s):
SAND2005-2557J; TRN: US201004%%202
Journal Information:
Proposed for publication in Electronics Letters., Journal Name: Proposed for publication in Electronics Letters.
Country of Publication:
United States
Language:
English