Optical waveguides – With optical coupler – Input/output coupler
Patent
1997-12-01
1999-09-07
Sanghavi, Hemang
Optical waveguides
With optical coupler
Input/output coupler
385 34, 385 89, 385 93, G02B 632
Patent
active
059499320
ABSTRACT:
An assembly for focusing and coupling radiation produced by a semiconductor laser into an optical fiber, in particular a multimode optical fiber, including a radiation-focusing element in the form of cylinder lens disposed in the area between the radiating surface of the semiconductor laser and light entrance side of the optical fiber, the length of the cylinder lens being at least equal to a width of a beam exit window defining the radiation surface of the semiconductor laser, and the diameter of the cylinder lens being substantially on the order of magnitude of the core diameter of the optical fiber. The cylinder lens is in the form of glass fiber lens directly glued onto, fused with, or melted onto the light entrance side of the optical fiber which extends substantially at right angles to the orientation of the cylinder lens. The assembly can be used in particular to produce high-powered laser modules up to 50 watts and are very suitable as pumping laser for an end-pumped solid state laser, for example for medical applications or for materials processing.
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Coherent Inc.
Sanghavi Hemang
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