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Efficient grating-tuned mid-infrared Cr2+:CdSe laser.

J McKay1, K L Schepler, G C Catella

  • 1Air Force Research Laboratory, AFRL/SNJT, 3109 P Street, Wright-Patterson Air Force Base, Ohio 45433-7700, USA.

Optics Letters
|December 15, 2007
PubMed
Summary
This summary is machine-generated.

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Room-temperature, all-solid-state laser operation was achieved using chromium-doped cadmium selenide (Cr2+:CdSe). This broadly tunable laser offers significant output power and efficiency for various applications.

Area of Science:

  • Solid-state laser technology
  • Materials science
  • Quantum electronics

Background:

  • Development of solid-state lasers operating at room temperature is crucial for practical applications.
  • Tunable lasers are essential for spectroscopy, optical sensing, and telecommunications.

Purpose of the Study:

  • To demonstrate room-temperature, all-solid-state laser operation of Cr(2+)-doped CdSe.
  • To characterize the laser's output power, efficiency, and tuning range.

Main Methods:

  • Utilized Cr(2+)-doped CdSe as the gain medium.
  • Employed a Q-switched Tm, Ho:YLF laser for optical pumping.
  • Incorporated a diffraction grating for wavelength tuning.

Main Results:

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  • Achieved broadband output power of 500 mW at 2.6 micrometers with 48% absorbed power slope efficiency.
  • Obtained up to 815 mW of output power.
  • Demonstrated tuning from 2.3 to 2.9 micrometers with a 10-nm bandwidth (FWHM) and output power up to 350 mW.

Conclusions:

  • Cr(2+):CdSe is a promising material for room-temperature, all-solid-state tunable lasers.
  • The demonstrated performance highlights the potential for high-power and efficient laser operation in the mid-infrared region.