公开(公告)号：WO2006130180A2

公开(公告)日：2006-12-07

申请号：PCT/US2005047624

申请日：2005-12-20

Applicant: RAYTHEON CO

Inventor： USHINSKY MICHAEL ,  BETIN ALEXANDER A ,  GENTILMAN RICHARD ,  HOGAN PATRICK K

IPC: H01S3/06

CPC classification number: H01S3/0612 ,  H01S3/0602 ,  H01S2301/02

Abstract: A glaze encapsulated solid-state laser component (30). The novel laser component (30) includes a core (10) and a cladding (32) of ceramic glaze disposed on a surface of the core (10). In an illustrative embodiment, the core (10) is fabricated from a laser gain medium and the cladding material is a multi-oxide eutectic ceramic glaze having a refractivity slighter lower than the refractivity of the gain medium, such that the glaze layer forms a step-index refractivity interface cladding that can effectively suppress parasitic oscillations in the core gain medium. The glaze cladding (32) can be applied by coating the core (10) with the glaze and then firing the glaze coated core, or by fabricating pre-formed cladding strips from the ceramic glaze in a first firing cycle, mounting the pre-formed strips to the core (10), and then fusing the pre-formed strips to the core (10) in a secondary firing cycle.

Abstract translation: 釉胶封固态激光组件（30）。 新型激光组件（30）包括芯（10）和设置在芯（10）的表面上的陶瓷釉的包层（32）。 在说明性的实施例中，芯（10）由激光增益介质制成，并且包层材料是具有比增益介质的折射率低的折射率变浅的多氧化物共晶陶瓷釉，使得釉层形成步骤 指示折射率界面包层，可以有效地抑制核心增益介质中的寄生振荡。 釉料包层（32）可以通过用釉料涂覆芯（10），然后烧制釉面芯，或者通过在第一次烧制循环中从陶瓷釉中制造预形成的包层条来施加，安装预成形 将其带到芯（10）上，然后在二次烧制循环中将预成形的条固定到芯（10）上。

公开(公告)号：WO2007120432A3

公开(公告)日：2008-03-13

申请号：PCT/US2007007141

申请日：2007-03-22

Applicant: RAYTHEON CO

Inventor： SUMIDA DAVID S ,  BYREN ROBERT W ,  USHINSKY MICHAEL

IPC: H01S3/06 ,  H01S3/16

CPC classification number: H01S3/0612 ,  H01S3/061 ,  H01S3/1618 ,  H01S3/1643

Abstract: A material having a surface and a dopant in the material distributed whereby the material has a spatially variant optical flux density profile. In accordance with the invention, tailored non-uniform gain profiles within a Yb:YAG laser component (rod, slab, disc, etc.) are achieved by a spatial material modification in the spatially masked pre-forms. High temperature-assisted reduction leads to the coordinate-dependent gain profiles, which are controlled by the topology of the deposited solid masks. The gain profiles are obtained by reducing the charge state of the laser-active trivalent Yb3+ ions into inactive divalent Yb2+ ions. This valence conversion process is driven by mass transport of ions and oxygen vacancies. These processes, in turn, affect the dopant distribution throughout the surface and bulk laser crystal. By reducing proportionally more Yb3+ ions at the unmasked areas of component, than in the masked areas, the coordinate-dependent or spatially-controlled gain profiles are achieved. Preferred masking materials are high temperature ceramic glazes and glasses. The masking includes the fabrication of frit, mixing this frit with de-ionized water to form slurry, deposition of the slurry on the surface of laser component or pre-form, and a heat treatment (firing) of the deposited layer. The invention can be used for the fabrication of laser rods, slabs, etc. with various concentrations and spatial localizations of dopants.

Abstract translation: 在材料中具有表面和掺杂剂的材料被分配，由此材料具有空间上不同的光通量密度分布。 根据本发明，Yb：YAG激光器部件（棒，板，盘等）中的定制的不均匀增益分布通过在空间掩蔽的预成型件中的空间材料修改来实现。 高温辅助还原导致坐标依赖增益曲线，其由沉积的固体掩模的拓扑结构来控制。 通过将激光活性三价Yb3 +离子的电荷状态降低成无活性的二价Yb2 +离子获得增益曲线。 该价电子转化过程由离子和氧空位的质量传递驱动。 这些过程又影响整个表面和体激光晶体的掺杂剂分布。 通过在组件的未屏蔽区域上比在掩蔽区域中成比例地减少更多的Yb3 +离子，实现了坐标依赖或空间控制的增益曲线。 优选的掩蔽材料是高温陶瓷釉料和玻璃。 掩模包括制造玻璃料，将该玻璃料与去离子水混合以形成浆料，将浆料沉积在激光部件的表面上或预成型，以及沉积层的热处理（烧制）。 本发明可用于制造具有各种浓度和掺杂剂的空间定位的激光棒，板坯等。