Single-mode laser diode at absolute predetermined wavelength via intracavity Er3+-doped material absorption

Francois E. Auzel

doi:10.1117/12.513640

9 April 2003 Single-mode laser diode at absolute predetermined wavelength via intracavity Er³⁺-doped material absorption

Francois E. Auzel

Author Affiliations +

Proceedings Volume 5131, Third GR-I International Conference on New Laser Technologies and Applications; (2003) https://doi.org/10.1117/12.513640
Event: Third GR-I International Conference on New Laser Technologies and Applications, 2003, San Diego, CA, United States

Abstract

Having shown that intra-cavity Er³⁺ absorption can stabilized one frequency out of the many frequencies emitted by a broad band F.P. laser, we shall see that the wavelength can be determined in an absolute way for InGaAsP F.P. lasers with somewhat different gain curves and mode spacing still with side modes rejection ratios as large as 30 - 40 dB. The gain curve of a multimode Fabry Perot (F.P.) laser is shaped with intra-cavity Er³⁺-doped single crystal absorption so achieving single mode selection. Absolute wavelengths are predetermined by combinations of crystals of various thicknesses. Finally tentative selection by Er³⁺-doped amorphous materials such as glass or sol-gel layers are presented indicating new roads for low cost laser at absolute frequency.

Citation Download Citation

Francois E. Auzel "Single-mode laser diode at absolute predetermined wavelength via intracavity Er³⁺-doped material absorption", Proc. SPIE 5131, Third GR-I International Conference on New Laser Technologies and Applications, (9 April 2003); https://doi.org/10.1117/12.513640

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