公司简介

Wasatch Photonics成立于2000年，是世界上最好的体相位全息光栅和光谱仪器的零售和OEM客户。提供组件和完整的系统中使用的各种应用程序，包括激光脉冲压缩，拉曼光谱和光学相干断层扫描。拥有超过150年的综合经验，致力于质量，创新和满足各种客户的需求。

技术能力

专利(Patents)

高清光栅(HD Gratings)

迪克森光栅(Dickson Gratings)

增强体相位光栅(Enhanced Volume Phase Gratings)

低损耗的光谱仪和光学产品?(Low f# Spectrometers & Optics)

光学相干断层扫描(Optical Coherence Tomography (OCT))

拉曼光谱仪(Raman Spectroscopy)

卷向全息光栅(Volume Phase Holographic Gratings)

产品列表

GRATINGS & DIFFRACTIVE OPTICS

Gratings for Raman

 Gratings for Laser Pulse Compression

Gratings for UV VIS NIR Spectroscopy

Gratings for Hyperspectral Imaging

 Gratings for OCT

Laser Tuning Gratings

This example uses a “retro” grating to redirect light back to the laser cavity. It is a low-efficiency grating that returns about 20% of the light back to the laser cavity while the remainder passes through the grating. The laser cavity can be fined tuned depending on the tilt of the grating. This design delivers the maximum dispersion for an “in air” grating. The line width of the laser is dependent on how close the grating is to the laser cavity.

This example uses a grating between two right angle prisms to form a “grating cube”. Since this grating is “in glass” it has a lot higher dispersion than the previous example. It also uses a high efficiency grating (97% +). The light is redirect light back to the laser cavity by a partially reflective surface on the output window of the grating cube. The amount of light that returns to the laser cavity is determined by the reflectivity of this surface. The returned light passes back through the grating and is dispersed a second time. While the remainder of the light passes through the partial reflective surface. The laser cavity can be fined tuned depending on the tilt of the grating cube. This design delivers the maximum dispersion and can be in close proximity to the laser cavity.

This example, like the last example, uses a grating between two right angle prisms. However, the output prism is larger and is positioned such that the light path is in a straight pass configuration.

A spatial filter can be placed on the output of the prism to work as a laser bandpass filter to eliminate any stray light. These cubes can also be made with an AR coating on the output window instead of the partial reflective coating and used solely as a laser bandpass filter.

Spectrometers