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Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
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Widely tunable picosecond optical parametric oscillator using highly nonlinear fiber.

Yue Zhou1, Kim K Y Cheung, Sigang Yang

  • 1Department of Electrical and Electronic Engineering, The University of Hong Kong, Hong Kong. yzhou@eee.hku.hk

Optics Letters
|April 3, 2009
PubMed
Summary

We developed a fiber-integrated tunable picosecond optical parametric oscillator using highly nonlinear fiber. This device achieves a wide 250 nm tuning range, generating high-quality, narrow picosecond pulses.

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Area of Science:

  • Photonics
  • Nonlinear Optics
  • Fiber Optics

Background:

  • Picosecond optical parametric oscillators (OPOs) are crucial for generating tunable ultrashort pulses.
  • Integrating OPOs into fiber systems enhances stability and compactness.

Purpose of the Study:

  • To demonstrate a fully fiber-integrated, widely tunable picosecond optical parametric oscillator.
  • To achieve broad wavelength tunability using highly nonlinear fiber in a compact ring cavity.

Main Methods:

  • A ring cavity incorporating 50 meters of highly nonlinear fiber was utilized.
  • Synchronous pumping was achieved using a picosecond mode-locked fiber laser.

Main Results:

  • A wide tuning range spanning 1413–1543 nm and 1573–1695 nm was demonstrated, totaling 250 nm.
  • High-quality picosecond pulses with durations shorter than the pump pulse were generated.

Conclusions:

  • The developed fiber-integrated OPO offers a versatile and compact solution for tunable picosecond pulse generation.
  • This technology has potential applications in spectroscopy, optical communications, and material processing.