摘要:
The invention relates to methods of writing a light-guiding structure in a bulk glass substrate. The bulk glass substrate is preferably made from a soft silica-based material having an annealing point less than about 1380° K. A pulsed laser beam is focused within the substrate while the focus is translated relative to the substrate along a scan path at a scan speed effective to induce an increase in the refractive index of the material along the scan path. Substantially no laser-induced physical damage of the material is incurred along the scan path. Various optical devices can be made using this method.
摘要:
The present invention provides methods of generating short wavelength radiation, methods of transporting short wavelength radiation, and apparati used in these methods. One embodiment of the invention provides a method of transporting short wavelength radiation using a photonic band gap fiber. Another embodiment of the invention provides a method of transporting short wavelength radiation using a bundle of photonic band gap fibers. Another embodiment of the invention provides a method of generating ultraviolet radiation using high harmonic generation by pumping a noble gas-filled photonic band gap fiber with a pulsed laser source.
摘要:
The invention provides a method of making optical fiber devices. The method includes providing an ultrashort subpicosecond laser pulse duration pulse laser for producing a laser output with a wavelength &lgr;, providing a laser output focussing lens having an air working distance ≧3 mm and a ≦1 NA numerical aperture for focussing said laser output, providing a controllable positioning translation stage for receiving an optical fiber device oxide bulk glass body, providing an optical fiber device oxide bulk glass body having a transparency at &lgr; of at least 90%/cm, positioning said oxide bulk glass body with said stage wherein said glass body is received by said stage, focussing said laser output through said laser output focussing lens to produce a subpicosecond laser pulse duration focus proximate the oxide bulk glass body and translating the oxide bulk glass body relative to said subpicosecond laser pulse duration focus wherein said focus traces a hole precursor track pattern through the oxide bulk glass body, acid etching the oxide bulk glass body in an agitated heated acid bath wherein the focussed traced hole precursor track pattern is etched into an optical fiber receiving hole, cleansing the acid etched oxide bulk glass body with the etched optical fiber receiving hole, and inserting an optical fiber into the optical fiber receiving hole to provide a hole contained optical fiber.
摘要:
A method of writing a pattern, such as a waveguide, in a bulk glass substrate. The bulk glass substrate can be formed from, for example, borosilicate or sulfide or lead glass. A pulsed laser beam is focused within the substrate while the focus is translated relative to the substrate along a scan path at a scan speed effective to induce an increase in the refractive index of the material along the scan path. Substantially no laser induced physical damage of the material is incurred along the scan path. Various optical devices can be made using this method.
摘要:
High-energy pulses of femtosecond lasers form cladding portions of waveguides in bulk glass by producing localized reductions in refractive index. The cladding portions written by the high-energy pulses circumscribe unexposed core portions for defining light-guiding pathways in the bulk glass.
摘要:
A hermetically sealed glass package and method for manufacturing the hermetically sealed glass package are described herein using an OLED display as an example. In one embodiment, the hermetically sealed glass package is manufactured by providing a first substrate plate and a second substrate plate. The second substrate contains at least one transition or rare earth metal such as iron, copper, vanadium, manganese, cobalt, nickel, chromium, neodymium and/or cerium. A sensitive thin-film device that needs protection is deposited onto the first substrate plate. A laser is then used to heat the doped second substrate plate in a manner that causes a portion of it to swell and form a hermetic seal that connects the first substrate plate to the second substrate plate and also protects the thin film device. The second substrate plate is doped with at least one transition metal such that when the laser interacts with it there is an absorption of light from the laser in the second substrate plate, which leads to the formation of the hermetic seal while avoiding thermal damage to the thin-film device. Another embodiment of the hermetically sealed glass package and a method for manufacturing that hermetically sealed glass package are also described herein.
摘要:
A hermetically sealed glass package and method for manufacturing the hermetically sealed glass package are described herein using an OLED display as an example. Basically, the hermetically sealed OLED display is manufactured by providing a first substrate plate and a second substrate plate and depositing a frit onto the second substrate plate. OLEDs are deposited on the first substrate plate. An irradiation source (e.g., laser, infrared light) is then used to heat the frit which melts and forms a hermetic seal that connects the first substrate plate to the second substrate plate and also protects the OLEDs. The frit is glass that was doped with at least one transition metal and possibly a CTE lowering filler such that when the irradiation source heats the frit, it softens and forms a bond. This enables the frit to melt and form the hermetic seal while avoiding thermal damage to the OLEDs.
摘要:
High-energy pulses of femtosecond lasers form cladding portions of waveguides in bulk glass by producing localized reductions in refractive index. The cladding portions written by the high-energy pulses circumscribe unexposed core portions for defining light-guiding pathways in the bulk glass.
摘要:
A hermetically sealed glass package and method for manufacturing the hermetically sealed glass package are described herein using an OLED display as an example. Basically, the hermetically sealed OLED display is manufactured by providing a first substrate plate and a second substrate plate and depositing a frit onto the second substrate plate. OLEDs are deposited on the first substrate plate. An irradiation source (e.g., laser, infrared light) is then used to heat the frit which melts and forms a hermetic seal that connects the first substrate plate to the second substrate plate and also protects the OLEDs. The frit is glass that was doped with at least one transition metal and possibly a CTE lowering filler such that when the irradiation source heats the frit, it softens and forms a bond. This enables the frit to melt and form the hermetic seal while avoiding thermal damage to the OLEDs.
摘要:
A method of making an at least one hole in an optically transparent body comprises the following steps: (i) providing an ultrashort pulse laser for producing a laser output with a wavelength λ, the laser output having a subpicosecond laser pulse duration; (ii) providing a laser output focusing lens for focusing the laser output, the focusing lens having a numerical aperture NA; (iii) providing an optically transparent body, the optically transparent body having a transparency at λ of at least 90%/cm; (iv) providing a liquid filled container situated proximate to the optically transparent body, such that the optically transparent body is in direct contact with the liquid; and (v) directing the laser output through the focusing lens to produce a focused laser output with a subpicosecond laser pulse duration proximate the optically transparent body, wherein the focused laser output traces at least one hole track pattern through the transparent glass body while the optically transparent body and said focused laser output move relative to one another in X-Y-Z directions. The at least one hole track pattern is in contact with the liquid and the focused laser output, in conjunction with the liquid, creates at least one hole in the optically transparent body.
摘要翻译:在光学透明体中制造至少一个孔的方法包括以下步骤:(i)提供用于产生具有波长λ的激光输出的超短脉冲激光器,所述激光输出具有亚皮秒激光脉冲持续时间; (ii)提供用于聚焦激光输出的激光输出聚焦透镜,聚焦透镜具有数值孔径NA; (iii)提供光学透明体,所述光学透明体具有λ至少为90%/ cm 2的透明度; (iv)提供位于光学透明体附近的液体填充容器,使得光学透明体与液体直接接触; 和(v)通过聚焦透镜引导激光输出以产生具有邻近光学透明体的亚皮秒激光脉冲持续时间的聚焦激光输出,其中聚焦激光输出通过透明玻璃体追踪至少一个孔迹图案,而光学 透明体并且所述聚焦激光输出在XYZ方向上相对于彼此移动。 所述至少一个孔迹图案与液体接触并且聚焦的激光输出与液体一起在光学透明体中产生至少一个孔。