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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 41, Iss. 5 — Feb. 1, 2002
  • pp: 884–894

Magneto-Optical Disk Drive Technology using Multiple Fiber-Coupled Flying Optical Heads. Part II. Laser Noise Considerations

Jeffrey P. Wilde, Alexander A. Tselikov, George R. Gray, Yongwei Zhang, and Shubhagat Gangopadhyay  »View Author Affiliations


Applied Optics, Vol. 41, Issue 5, pp. 884-894 (2002)
http://dx.doi.org/10.1364/AO.41.000884


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Abstract

A magneto-optical data storage system utilizing single-mode fiber is capable of providing high signal-to-noise ratio (SNR) recording if laser noise sources are properly managed. In particular, mode partition noise (MPN) associated with use of a Fabry–Perot laser diode can be a significant problem in a fiber-based system. The various mechanisms leading to MPN as well as to laser phase noise are discussed in the context of a system constructed with polarization-maintaining fiber. The primary noise mechanisms include spurious fiber-endface reflections and errors in the quarter-wave plate on the recording head. An understanding of these effects is essential for fabrication of a fiber-based recording system with suitable SNR performance.

© 2002 Optical Society of America

OCIS Codes
(060.1810) Fiber optics and optical communications : Buffers, couplers, routers, switches, and multiplexers
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(210.3810) Optical data storage : Magneto-optic systems
(210.4680) Optical data storage : Optical memories
(210.4770) Optical data storage : Optical recording
(230.5440) Optical devices : Polarization-selective devices

Citation
Jeffrey P. Wilde, Alexander A. Tselikov, George R. Gray, Yongwei Zhang, and Shubhagat Gangopadhyay, "Magneto-Optical Disk Drive Technology using Multiple Fiber-Coupled Flying Optical Heads. Part II. Laser Noise Considerations," Appl. Opt. 41, 884-894 (2002)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-41-5-884


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References

  1. J. P. Wilde, J. F. Heanue, A. A. Tselikov, and J. E. Hurst, Jr., “Magneto-optical disk drive technology using multiple fiber-coupled flying optical heads. Part I. System design and performance,” Appl. Opt. 40, 691–706 (2001).
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  10. The complete optical path and resulting data signal level were modeled with diffract, a product of MM Research Inc., Tucson, Ariz.

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