| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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An Experiment for Generating the 14-Tone Stable Carriers Using Recirculating Frequency Shifter |
TIAN Feng, ZHANG Xiao-Guang, LI Jian-Ping, XI Li-Xia |
| Key Laboratory of Information Photonics and Optical Communications (BUPT) (Ministry of Education), Beijing University of Posts and Telecommunications, Beijing 100876 |
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| Cite this article: |
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TIAN Feng, ZHANG Xiao-Guang, LI Jian-Ping et al 2010 Chin. Phys. Lett. 27 094206 |
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Abstract In experiment, the generation of 14-tone stable carriers with recirculating frequency shifter is realized. Some factors that impact the performance of the carrier generation are discussed. It is experimentally found that the balance and the insertion loss of the inphase/quadrature (I/Q) modulator, the accurate π/2 phase difference and equal power level of two rf signals which are applied to the two ports of the I/Q modulator, the gain of the optical amplifier, the bandwidth and sharp window spectrum of the tunable filter and the stability of the optical signals' states of polarization fed into I/Q modulator, play important roles in the generation of a stable multi-tone carrier source. By employing appropriate techniques we obtain 14-tone stable carriers in the experiment.
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| Keywords:
42.79.Sz
42.79.Nv
42.72.Ai
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Received: 02 February 2010
Published: 25 August 2010
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| PACS: |
42.79.Sz
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(Optical communication systems, multiplexers, and demultiplexers?)
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42.79.Nv
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(Optical frequency converters)
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42.72.Ai
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(Infrared sources)
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