Jeffrey Bernard Kaiser

US Patent:

47062568, Nov 10, 1987

Filed:

Jun 20, 1986

Appl. No.:

6/876559

Inventors:

Jeffrey Kaiser - Mountain View CA
Ralph R. Jacobs - Fremont CA
Alan B. Petersen - Palo Alto CA

Assignee:

Spectra-Physics, Inc. - San Jose CA

International Classification:

H01S 3203

US Classification:

372 61

Abstract:

An endbell assembly operatively associated with a laser body includes a metal endbell component sealed to a crystalline endbell component which terminates with a crystalline optical component. The crystalline endbell and crystalline optical component are hermetically sealed without using a frit. This is achieved by polishing and a modified optical contacting technique whereby the optical component and crystalline endbell component are polished to a flatness of about 1/2 wavelength of light, placed in a contacting position and then thermally cycled at a temperature of about 400. degree. -500. degree. C. for about 1 to 10 hours, forming a substantially uniform unitary body. This seal is mechanically strong and minimizes the introduction of contaminants into the endbell assembly. In one embodiment, the crystalline endbell component is metallized and braze-sealed to the metal endbell component. In another embodiment, the two endbell components are hermetically sealed by modified optical contact and thermal cycling.

US Patent:

50705121, Dec 3, 1991

Filed:

Sep 19, 1988

Appl. No.:

7/228285

Inventors:

Jeffrey L. Kaiser - Mountain View CA
David L. Wright - Redwood City CA
Denes A. Hegedus - Redwood City CA
Alan B. Peterson - Palo Alto CA

Assignee:

Spectra-Physics, Inc. - San Jose CA

International Classification:

H01S 303

US Classification:

372 65

Abstract:

A disk, or heat web, is generally circularly shaped, and has a circumferential lip normal to the plane of the disk. A split ring, fabricated from a material having a low co-efficient of thermal expansion fits within the circumferential lip. A generally circularly shaped expansion member, made from a material having a relatively high coefficient of thermal expansion, fits within the split ring. A suitable brazing material is placed between the split ring and the circumferential lip of the disk. The heat produced by the brazing process expands the split ring and allows it to be brazed into place when the assembly is placed on the inside of the cylindrical member.

US Patent:

52475379, Sep 21, 1993

Filed:

Nov 19, 1991

Appl. No.:

7/794472

Inventors:

Jeffrey L. Kaiser - Mountain View CA
Denes A. Hegedus - Redwwod City CA

Assignee:

Spectra-Physics Lasers, Inc. - Mountain View CA

International Classification:

H01S 308

US Classification:

372107

Abstract:

A rotatable, bakeable vacuum sealed mount for an optical element, suitable for use on an endbell assembly for a gas discharge tube or as an integral part of a gas discharge tube for an ion laser comprises an elongated support member, having an axis and a passage along the axis of the support member. A first end of the support member is connected by a vacuum tight seal to the vacuum sealed chamber of the gas discharge tube, so that the passage has an opening toward the vacuum sealed chamber. A second end of the support member is connectable by vacuum tight seal to the optic, so that the second end of the passage has an opening toward the optic. A portion of the support member has a yield strength allowing adjustment by twisting of the support member about the axis for establishing a rotational alignment of the optic without breaking the vacuum of the vacuum sealed chamber. A bearing member, having a cylindrical bearing surface coaxial with the axis of the support member, supports the support member near the second end, so that the optic remains substantially transversely aligned relative to the axis of the support member during twisting for establishing the rotational alignment.

US Patent:

51777614, Jan 5, 1993

Filed:

Oct 17, 1991

Appl. No.:

7/778499

Inventors:

Jeffrey L. Kaiser - Mountain View CA

Assignee:

Spectra-Physics Lasers, Inc. - Mountain View CA

International Classification:

H01S 303

US Classification:

372 61

Abstract:

A heat conducting structure in a discharge tube of an ion laser, that has high resistance to erosion due to sputtering comprises a discharge limiting member having an inner aperture, and a thin film of refractory ceramic coating areas near the inner aperture. The thin film of ceramic does not significantly retard heat flow out of the discharge into the heat conducting structure, but significantly increases resistance of the heat conduction structure to sputtering.