Optical waveguides – With optical coupler – Input/output coupler
Reexamination Certificate
2006-08-29
2006-08-29
Palmer, Phan (Department: 2874)
Optical waveguides
With optical coupler
Input/output coupler
C385S033000, C385S120000, C372S103000, C428S364000
Reexamination Certificate
active
07099533
ABSTRACT:
A laser beam delivery system is disclosed, which allows transmission of high-power infrared light through a hollow core photonic band gap (HC-PBG) fiber made of non-silica-based glass. In this system, the infrared beam first passes through input coupling optics which focus the beam onto the hollow core of the HC-PBG fiber. In front of the input end of the HC-PBG fiber, there is provided a mask with a hole aligned with the hollow core, and the infrared beam first passes through this hole before entering the hollow core of the HC-PBG fiber. This protects the photonic band gap structure from being damaged by the beam. After passing through the HC-PBG fiber, which may be from one to several hundred meters in length, the infrared beam exits at the output end of the fiber and passes through output coupling optics which collimate and focus the beam onto a desired target. The various components of the system may be water cooled during the operation or subjected to a gas purge to prevent condensation or gas ionization.
REFERENCES:
patent: 4676586 (1987-06-01), Jones et al.
patent: 4762385 (1988-08-01), Fuse
patent: 4812641 (1989-03-01), Ortiz Jr.
patent: 5440664 (1995-08-01), Harrington et al.
patent: 5778125 (1998-07-01), Busse et al.
patent: 6898359 (2005-05-01), Soljacic et al.
patent: 2002/0025130 (2002-02-01), Fink et al.
patent: 2005/0025965 (2005-02-01), Sanghera et al.
patent: 2005/0074215 (2005-04-01), Sanghera et al.
Ricky, K. Nubling and James A. Harrington; Hollow-waveguide delivery systems for high-power, industrial C02 lasers; Applied Optics; Jan. 20, 1996; pp. 372-380; vol. 34, No. 3; Optical Society of America; New Jersey, USA.
T.A. Birks, P.J. Roberts, P.St.J. Russel, D.M. Atkin and T.J. Shepherd; Full 2-D photonic bandgaps in silica/air structures; Electronics Letters; Oct. 26, 1995; pp. 1941-1943; vol. 31, No. 22.
Palmer Phan
Primak George J.
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