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Optics Express

Optics Express

  • Vol. 16, Iss. 16 — Aug. 4, 2008
  • pp: 12108–12113

Three laser two-tone setup for measurement of photodiode intercept points

Meredith N. Draa, Jian Ren, David C. Scott, William S.C. Chang, and Paul K.L. Yu  »View Author Affiliations


Optics Express, Vol. 16, Issue 16, pp. 12108-12113 (2008)
http://dx.doi.org/10.1364/OE.16.012108


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Abstract

The third-order intermodulation product intercept (IP3) has become an important figure of interest for photodiodes in high-performance, externally modulated, analog links. With the desire for highly linear photodiodes comes the need to be able to accurately measure the device without additional variables. The purpose of this work is to redesign the current IP3 setup to accurately measure the third order intermodulation distortions of the photodiode and to also be able to measure the second order intercept point (IP2) using the same setup. The new setup will isolate equipment contributed nonlinearities by maintaining a small RF drive voltage amplitude on the modulators and by optically changing the photodiode input modulation depth while maintaining a constant input optical power to the photodiode. The goal is to measure a specific knee point where different slopes will indicate the change to photodiode dominated nonlinearity.

© 2008 Optical Society of America

OCIS Codes
(040.5160) Detectors : Photodetectors
(060.5625) Fiber optics and optical communications : Radio frequency photonics

ToC Category:
Detectors

History
Original Manuscript: April 21, 2008
Revised Manuscript: July 16, 2008
Manuscript Accepted: July 24, 2008
Published: July 29, 2008

Citation
Meredith N. Draa, Jian Ren, David C. Scott, William S. C. Chang, and Paul K. L. Yu, "Three laser two-tone setup for measurement of photodiode intercept points," Opt. Express 16, 12108-12113 (2008)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-16-16-12108


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References

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