Journal of the Optical Society of Korea

Optical Society of Korea (한국광학회)
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Spectral Characteristics of 50 GHz FSR Etalon for Wide-band DWDM Application

  • Kim, Jong-Deog (Integrated Optical Module Team, Basic Research Laboratory, Electronics and Telecommunications Research Institute) ;
  • Moon, Jong-Tae (Integrated Optical Module Team, Basic Research Laboratory, Electronics and Telecommunications Research Institute)
  • Received : 2004.05.07
  • Published : 2004.09.01
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Abstract

The periodic transmission spectrum of a solid etalon for wide-band capability is analyzed both theoretically and experimentally. In the transmission spectrum with an incident area of a photodetector, the peak wavelength and transmittance are deeply dependent on the incident angle and the divergence angle of the input laser beam. A thermal adjustment for a solid etalon is an optional way to control the transmission spectrum instead of the inefficient fine-angle alignment. In the result, we present the deviations of free spectral range (FSR) by the change in angle and temperature over wide wavelength range.

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References

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