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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 13, Iss. 10 — May. 16, 2005
  • pp: 3816–3821

Optical phase locked loop for transparent inter-satellite communications

F. Herzog, K. Kudielka, D. Erni, and W. Bächtold  »View Author Affiliations


Optics Express, Vol. 13, Issue 10, pp. 3816-3821 (2005)
http://dx.doi.org/10.1364/OPEX.13.003816


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Abstract

A novel type of optical phase locked loop (OPLL), optimized for homodyne inter-satellite communication, is presented. The loop employs a conventional 180° 3 dB optical hybrid and an AC-coupled balanced front end. No residual carrier transmission is required for phase locking. The loop accepts analog as well as digital data and various modulation formats. The only requirement to the transmitted user signal is a constant envelope. Phase error extraction occurs through applying a small sinusoidal local oscillator (LO) phase disturbance, while measuring its impact on the power of the baseband output signal. First experimental results indicate a receiver sensitivity of 36 photons/bit (-55.7 dBm) for a BER of 10-9, when transmitting a PRBS-31 signal at a data rate of 400 Mbit/s. The system setup employs diode-pumped Nd:YAG lasers at a wavelength of 1.06 µm.

© 2005 Optical Society of America

OCIS Codes
(060.1660) Fiber optics and optical communications : Coherent communications
(060.2920) Fiber optics and optical communications : Homodyning
(350.6090) Other areas of optics : Space optics

ToC Category:
Research Papers

History
Original Manuscript: April 12, 2005
Revised Manuscript: April 28, 2005
Published: May 16, 2005

Citation
F. Herzog, K. Kudielka, D. Erni, and W. Bächtold, "Optical phase locked loop for transparent inter-satellite communications," Opt. Express 13, 3816-3821 (2005)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-13-10-3816


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References

  1. L. G. Kazovsky and D. A. Atlas, �??A 1320-nm Experimental Optical Phase-Locked Loop: Performance Investigation and PSK Homodyne Experiments at 140 Mb/s and 2 Gb/s,�?? J. Lightwave Technol. 8, 1414�??1425 (1990). [CrossRef]
  2. D. F. Hornbachner, M. A. Schreiblehner, W. R. Leeb and A. L. Scholtz, �??Experimental determination of power penalty contributions in an optical Costas-type phase-locked loop receiver,�?? in Free-Space Laser Communication Technologies IV, Proc. SPIE 1635, 10�??18 (1992).
  3. S. Norimatsu, K. Iwashita and K. Noguchi, �??An 8 Gb/s QPSK Optical Homodyne Detection Experiment Using External-Cavity Laser Diodes,�?? IEEE Photon. Technol. Lett. 4, 765�??767 (1992). [CrossRef]
  4. B.Wandernoth: �??20 Photon/Bit 565 Mbit/s PSK Homodyne Receiver using Synchronisation Bits,�?? IEE Electron. Lett. 28, 387�??388 (1992). [CrossRef]
  5. W. R. Leeb, �??Optical 90�?� Hybrid for Costas-Type Receivers,�?? IEE Electron. Lett. 26, 1431�??1432 (1990). [CrossRef]
  6. J. R. Barry and E. A. Lee, �??Performance of Coherent Optical Receivers,�?? in Proceedings of the IEEE (Institute of Electrical and Electronics Engineers, New York, 1990), pp. 1369�??1394. [CrossRef]

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