Laser-to-fiber optical coupling scheme with a long working distance by use of thermally overexpanded fiber.
A laser-diode-optical-fiber coupling scheme that uses aspherically ended thermally overexpanded fiber is proposed. The scheme is verified by both an analytical formalism and a wide-angle beam-propagation method analysis in cylindrical coordinates.
Kweon
G I
GI
Park
I S
IS
Shim
J I
JI