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Optica Publishing Group
  • Journal of the Optical Society of Korea
  • Vol. 14,
  • Issue 1,
  • pp. 38-41
  • (2010)

Widely Tunable Coupled-ring Reflector Laser Diode Consisting of Square Ring Resonators

Open Access Open Access

Abstract

We design and fabricate a widely tunable laser diode made of InGaAsP-InP. The diode is monolithically integrated with a wavelength-selective coupled-ring reflector and semiconductor amplifiers. For realization of a compact size device, deeply etched multi-mode interference couplers and square ring resonators composed of total-internal-reflection mirrors are adopted and fabricated using a self-aligned process. It is demonstrated that the laser diode exhibits single mode operation and 16 nm tuning range with side-mode-suppression-ratio exceeding 20 dB.

© 2010 Optical Society of Korea

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