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High-Power Single-Frequency Continuous-Wave Tunable 1064/532 nm Dual-Wavelength Laser.

Weina Peng1, Pixian Jin1,2, Jing Su1,2

  • 1State Key Laboratory of Quantum Optics Technologies and Devices, Shanxi University, Taiyuan 030006, China.

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Summary
This summary is machine-generated.

A novel dual-wavelength laser system generates high-power, single-frequency light at 1064 nm and 532 nm. This tunable laser system offers wide frequency tuning ranges for advanced applications.

Keywords:
all-solid-state laserdual-wavelength laserhigh powersingle-frequencywideband continuously tunable laser

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Area of Science:

  • Optics and Photonics
  • Laser Physics

Background:

  • High-power, single-frequency lasers are crucial for various scientific and industrial applications.
  • Achieving dual-wavelength output with continuous tunability presents significant engineering challenges.

Purpose of the Study:

  • To develop a high-power, single-frequency, continuously tunable dual-wavelength laser system.
  • To achieve efficient power conversion and wide frequency tuning ranges at 1064 nm and 532 nm.

Main Methods:

  • Design of a thermally insensitive cavity incorporating a lithium triborate (LiB3O5) crystal and a quartz etalon.
  • Optimization of mode matching for efficient laser power generation.
  • Locking the etalon's transmission peak to the resonator's oscillating frequency for continuous tuning.

Main Results:

  • Maximal output powers of 13.3 W at 1064 nm and 12.5 W at 532 nm were achieved with 63.7 W pump power.
  • A total optical-to-optical efficiency of 40.5% was demonstrated.
  • Wide continuous frequency tuning ranges of 26.75 GHz at 1064 nm and 53.5 GHz at 532 nm were realized.

Conclusions:

  • The developed laser system successfully provides high-power, single-frequency, and continuously tunable dual-wavelength output.
  • The thermally insensitive cavity design and etalon locking mechanism are effective for achieving wide tuning ranges.
  • This laser technology holds promise for applications requiring precise wavelength control and high optical power.