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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 25, Iss. 11 — Jun. 1, 2000
  • pp: 799–801

Optoelectronic delay-time controller for laser pulses

Gong-Ru Lin  »View Author Affiliations


Optics Letters, Vol. 25, Issue 11, pp. 799-801 (2000)
http://dx.doi.org/10.1364/OL.25.000799


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Abstract

A dc-voltage-controlled optoelectronic delay line for continuous tuning of the relative delay time of an optical pulse train generated from a gain-switched laser diode is demonstrated. A maximum tunable range delay time of 3.9 ns (≈2 periods) for optical pulses at a 500-MHz repetition rate is reported, which corresponds to a phase shift of as much as 4π. The tuning responsivity and resolution of the current apparatus are 0.54 ps/mV and <0.2 ps, respectively. The measured timing fluctuation and long-term drift at any delay time are 0.13 ps and 20 fs/min, respectively. This scheme further permits the simultaneous phase tracking of the laser pulse train to unknown signals generated from the device under test.

© 2000 Optical Society of America

OCIS Codes
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(120.5050) Instrumentation, measurement, and metrology : Phase measurement
(320.7160) Ultrafast optics : Ultrafast technology

Citation
Gong-Ru Lin, "Optoelectronic delay-time controller for laser pulses," Opt. Lett. 25, 799-801 (2000)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-25-11-799

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