4.6 Article

Monolithically integrated selectable repetition-rate laser diode source of picosecond optical pulses

Journal

OPTICS LETTERS
Volume 39, Issue 14, Pages 4144-4147

Publisher

OPTICAL SOC AMER
DOI: 10.1364/OL.39.004144

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Funding

  1. UK EPSRC COPOS award [EP/H022384/1]
  2. European Commission [228839]
  3. EPSRC [EP/H022384/1, EP/E064361/1] Funding Source: UKRI
  4. Engineering and Physical Sciences Research Council [EP/E064361/1, EP/H022384/1] Funding Source: researchfish

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We describe the characterization of a monolithically integrated photonic device for short pulse generation featuring a mode-locked laser diode, a Mach-Zehnder modulator (MZM), and a semiconductor optical amplifier (SOA). The integrated device is designed for fabrication by a generic foundry scheme with a view to ease of design, testing, and manufacture. Trains of 6.8 ps pulses are generated at repetition rates that are electronically switchable from 14 GHz to 109 MHz. The SOA boosts the peak power by 7.4 dB, and the pulses are compressible to 2.4 ps by dispersion compensation using single-mode telecommunications fiber. (C) 2014 Optical Society of America

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