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Journal of Lightwave Technology

Journal of Lightwave Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 30, Iss. 9 — May. 1, 2012
  • pp: 1278–1283

Frequency Tuning in Integrated InGaAsP/InP Ring Mode-Locked Lasers

John S. Parker, Pietro R. A. Binetti, Yung-Jr Hung, and Larry A. Coldren

Journal of Lightwave Technology, Vol. 30, Issue 9, pp. 1278-1283 (2012)


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Abstract

We demonstrate for the first time, continuous frequency tuning >40 MHz using symmetric phase tuning regions in an InGaAsP/InP 18 GHz passively mode-locked ring laser. Frequency tuning is achieved through current injection into passive waveguides, via the free-carrier plasma effect, which is enhanced by the concurrent increase in cavity losses from free-carrier absorption. Stable mode-locking with ~1 ps pulse-width is realized from -2.5 to -7.5 V bias on the saturable absorber and 170 to 290 mA drive current. The average RF power is 50 dB above the noise level over this regime.

© 2012 IEEE

Citation
John S. Parker, Pietro R. A. Binetti, Yung-Jr Hung, and Larry A. Coldren, "Frequency Tuning in Integrated InGaAsP/InP Ring Mode-Locked Lasers," J. Lightwave Technol. 30, 1278-1283 (2012)
http://www.opticsinfobase.org/jlt/abstract.cfm?URI=jlt-30-9-1278

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