Patent ID: 6683892
Filing Date: 2004-01-27
Classification: H01S

Abstract:
A laser device comprising a longitudinal flexible composite optical medium which comprises:a laser beam guide portion, which comprises a core portion containing a laser active material and a cladding portion surrounding said core portion; and an excitation beam guide portion, including a no core portion, for distributing and introducing an excitation beam into said laser beam guide portion; said laser beam guide portion and said excitation beam guide portion being uncoaxially arranged in parallel to each other and integrally coupled with each other, said composite optical medium being wound or folded to form a predetermined shape, said predetermined shape being a hollow cylindrical shape formed so that turned or folded parts of the excitation beam guide portion of said composite optical medium are stacked in a layered fashion, a first part of said excitation beam guide portion of said composite optical medium being optically connected, in said predetermined shape, to a second part of said excitation beam guide portion which is adjacent to said first part.