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Optics Letters

Optics Letters


  • Vol. 25, Iss. 18 — Sep. 15, 2000
  • pp: 1349–1351

Fabrication and optimization of uniform output couplers for far-infrared lasers

W. A. Bailey, Jr., A. J. Gatesman, K. R. Gingras, and W. D. Goodhue  »View Author Affiliations

Optics Letters, Vol. 25, Issue 18, pp. 1349-1351 (2000)

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An improved technique for the fabrication of uniform output couplers for far-infrared lasers has been developed. The technique includes a process for uniformly removing material from the back side of the coupler's substrate to tune the coupler's reflectivity precisely to the specified value for a particular laser line. Depending on the condition of the coupler after use, it can be retuned to another laser line, which lies within the coupler's reflectance envelope. Furthermore, when there is the possibility of lasing at two different laser wavelengths (as happens with some far-infrared lasers), it is possible to optimize the coupler for one wavelength while at the same time detuning the other wavelength. The fabrication and optimization of these devices are discussed.

© 2000 Optical Society of America

OCIS Codes
(140.3070) Lasers and laser optics : Infrared and far-infrared lasers
(140.4130) Lasers and laser optics : Molecular gas lasers
(220.4000) Optical design and fabrication : Microstructure fabrication
(300.6170) Spectroscopy : Spectra

W. A. Bailey, Jr., A. J. Gatesman, K. R. Gingras, and W. D. Goodhue, "Fabrication and optimization of uniform output couplers for far-infrared lasers," Opt. Lett. 25, 1349-1351 (2000)

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  6. R. M. Gogolewski, “Strip grating output couplers for far infrared lasers,” Master's thesis (University of Virginia, Charlottesville, Va., 1992).

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