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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 34, Iss. 1 — Jan. 1, 2009
  • pp: 52–54

High-speed measurement of free spectral range voltage of tunable filters

Yunhae Yeh, DoHyun Park, and Se Hoon Park  »View Author Affiliations

Optics Letters, Vol. 34, Issue 1, pp. 52-54 (2009)

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A new technique to measure the frequency response of a fiber-optic tunable filter (TF) is proposed and demonstrated. This technique is based on the linearity of the sinusoidal function in the vicinity of m π , where m is an integer. The free spectral range (FSR) voltage, V FSR , is evaluated fast and accurately by measuring the time interval corresponding to the bandwidth of TF. The time interval is obtained by adjusting the dc offset of the driving signal to locate the transmission peak of TF at the maximum slope of the driving signal of < 1 V p - p . The measured FSR voltages range from 500 mV to 100 V over the frequency up to 200 kHz .

© 2008 Optical Society of America

OCIS Codes
(120.2230) Instrumentation, measurement, and metrology : Fabry-Perot
(120.2440) Instrumentation, measurement, and metrology : Filters

ToC Category:
Instrumentation, Measurement, and Metrology

Original Manuscript: October 9, 2008
Revised Manuscript: November 10, 2008
Manuscript Accepted: November 12, 2008
Published: December 24, 2008

Yunhae Yeh, DoHyun Park, and Se Hoon Park, "High-speed measurement of free spectral range voltage of tunable filters," Opt. Lett. 34, 52-54 (2009)

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