Fully-Packaged, Self-Calibrated, Absolute Optical Frequency Controller Based on a Surface-Emitting Nonlinear Semiconductor Waveguide: Applications to Multifrequency Optical Communication Systems

  • Martin Guy
  • Michel Têtu
  • Steeve Boissinot


The present deployment of high speed information highways and the ever increasing demand for new broadband services clearly indicate that the capacity of today’s communication systems will soon be insufficient. To access the 30 THz bandwidth of silica optical fiber available between 1.3 and 1.55 µm, it is now well accepted that multifrequency communication systems will be the next enabling technology. In future communication systems with densely-spaced optical carriers, a number of issues will have to be addressed. Absolute frequency control of each laser transmitters will be necessary to eliminate long-term frequency drifts causing crosstalk and to facilitate channel recognition. It is also crucial to be able to monitor at different nodes of the network the laser frequency to insure reliable transmission. Frequency stability of other components (filter, receiver etc.) is another very important issue. Finally, to allow all-optical interconnections of multiple multifrequency systems, laser frequencies will have to coincide with preset absolute values; standards concerning the choice of those values will have to be established1,2. In this paper, we will concentrate on absolute optical frequency control of laser transmitters and present a new type of instrument performing this task.


Frequency Control Laser Transmitter IEEE Photonic Technology Letter Master Laser External Laser 
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Copyright information

© Springer Science+Business Media New York 1997

Authors and Affiliations

  • Martin Guy
    • 1
  • Michel Têtu
    • 1
  • Steeve Boissinot
    • 1
  1. 1.Centre d’Optique Photonique et Laser (COPL), Electrical and computer engineering departmentUniversité LavalQuébecCanada

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