Claims
- 1. A laser, comprising:
- a pump laser source emitting a pump beam of a determined wavelength;
- a pressurized gas enclosure in which is transmitted the pump beam, said gas contained in the enclosure being excited by the pump beam and giving rise by the Raman effect to at least one first-order Stokes wave and one second-order Stokes wave;
- an optical cavity, comprising a first input reflection device having a high coefficient of reflection for all wavelengths, and a second output reflection device, in which is placed said gas enclosure, said second reflection device having, over at least part of its surface, a high coefficient of reflection for the wavelengths situated outside a range including the second-order Stokes wavelength.
- 2. Laser according to claim 1, wherein said output reflection device possesses surfaces of different coefficients of reflectivity.
- 3. Laser according to claim 2, wherein said surfaces are made in the form of sectors.
Priority Claims (1)
Number |
Date |
Country |
Kind |
89 15874 |
Dec 1989 |
FRX |
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Parent Case Info
This is a division, of application Ser. No. 7/620,031, filed on Nov. 30, 1990, U.S. Pat. No. 5,222,093.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
4933943 |
Narhi et al. |
Jun 1990 |
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5088096 |
Pocholle et al. |
Feb 1992 |
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Divisions (1)
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Number |
Date |
Country |
Parent |
620031 |
Nov 1990 |
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