A laser with two longitudinal modes at different wavelengths with orthogonal polarizations
AssigneePavilion Integration Corporation
InventorsHaiwen Wang, Ningyi Luo, Jihchuang Robin Huang
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Abstract
The present invention provides a way to use anisotropic laser gain media to make a laser that can lase in two longitudinal modes at different wavelengths with orthogonal polarizations. The two longitudinal mode (LM) laser output can be separated to generate two single LM outputs. This type of lasers can also be used to generate low noise continuous wave (CW) harmonics through intracavity harmonic generation.
Claims23
A laser that lases in two longitudinal modes at different wavelengths in air, with orthogonal polarizations, the laser comprising:
- an anisotropic laser gain medium that is cut such that the wavelengths of the two longitudinal modes are equal or close to equal inside the laser gain medium, and
- an element that introduces odd multiples of quarter-wave phase difference between the two longitudinal modes inside the laser gain medium.
A method for use in lasing with respect to two longitudinal modes at differing in respective wavelengths in air, the method carried out with respect to a laser comprising:
- an anisotropic laser gain medium that is cut such that the wavelengths of the two longitudinal modes are equal or close to equal inside the laser gain medium, and
- an element that introduces odd multiples of quarter-wave phase difference between the two longitudinal modes inside the laser gain medium;
- the method comprising providing stimulation thereto, whereby lasing occurs.
Dependencies are inferred from the claim text.