OSA's Digital Library

Applied Optics

Applied Optics


  • Vol. 29, Iss. 9 — Mar. 20, 1990
  • pp: 1323–1326

Incoherent frequency modulated cw optical reflectometry with centimeter resolution

Shalini Venkatesh and David W. Dolfi  »View Author Affiliations

Applied Optics, Vol. 29, Issue 9, pp. 1323-1326 (1990)

View Full Text Article

Enhanced HTML    Acrobat PDF (565 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



An incoherent, frequency modulated continuous wave optical reflectomer is described which utilizes a broadband LiNbO3 electrooptic modulator and slow photodiode for optical downconversion and detection, and a waveform recorder for digital spectrum analysis of the incoming signal. A two-point resolution of 6.8 cm in fiber is achieved. The dynamic range, defined as the location of the system noise floor relative to the maximum producible signal, is 50-dB optical.

© 1990 Optical Society of America

Original Manuscript: July 10, 1989
Published: March 20, 1990

Shalini Venkatesh and David W. Dolfi, "Incoherent frequency modulated cw optical reflectometry with centimeter resolution," Appl. Opt. 29, 1323-1326 (1990)

Sort:  Author  |  Year  |  Journal  |  Reset  


  1. David W. Dolfi, M. Nazarathy, S. A. Newton, “5-mm Resolution Optical Frequency Domain Reflectometry Using a Coded Phase-Reversal Modulator,” Opt. Lett. 13, 678–680 (1988). [CrossRef] [PubMed]
  2. D. W. Dolfi, M. Nazarathy, “Optical Frequency Domain Reflectometry with High Sensitivity and Resolution Using Optical Synchronous Detection with Coded Modulators,” Elec. Lett. 25, 160–162 (1989). [CrossRef]
  3. A. J. Hymans, J. Lait, “Analysis of a Frequency Modulated Continuous-Wave Ranging System,” Proc. IEE, 107B, 365–372 (1960).
  4. D. Uttam, B. Culshaw, “Precision Time Domain Reflectometry in Optical Fiber Systems Using a Frequency Modulated Continuous Wave Ranging Technique,” IEEE/OSA J. Lightwave Technol. LT-3, 971–977 (1985). [CrossRef]
  5. R. I. MacDonald, “Frequency Domain Optical Reflectometer,” Appl. Opt. 20, 1840–1844 (1981). [CrossRef] [PubMed]
  6. See, for example, B. H. Kolner, D. W. Dolfi, “Intermodulation Distortion and Compression in an Integrated Electrooptic Modulator,” Appl. Opt. 26, 3676–3680 (1987) and references therein. [CrossRef] [PubMed]
  7. R. L. Jungerman, C. A. Johnsen, D. W. Dolfi, M. Nazarathy, “Coded Phase-Reversal LiNbO3 Modulator with Bandwidth Greater than 20 GHz,” Electron. Lett. 23, 172–174 (1987). [CrossRef]
  8. K. I. Mallalieu, “Investigation into the Optical Activation and Fibre Optic Multiplexed Interrogation of Vibrating Sensors,” PhD thesis, Dept. of Electronic and Electrical Engineering, University College, London, 1987.

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.


Fig. 1 Fig. 2 Fig. 3
Fig. 4

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited