Ceramic Laser Reflectors

• Extended life time
• Higher efficiency/output performance
• Higher reflectance over a range of wavelengths
• Inert to a wide range of gases and chemicals
• Uniform beam quality
• Greater thermal stability, particularly at higher temperatures due to a very low coefficient of thermal expansion.

High reflectance Sintox AL and Sintox FF ceramic cavities generate diffuse reflectance, which provides a more uniform beam profile. This diffuse reflectance also scatters light and consequently reduces hot spots in the pumped medium.

Sintox AL high purity Alumina material shows reflectance figures of typically 97 to 98% over wavelengths in the 570nm to 2000nm range.

When active cooling is required, the reflectors can be glazed both inside the cavity and around the outer edges using “non-solarising” glaze that seals the ceramic against ingress of cooling fluids.

Two types of glazed reflectors are available:

a) Sintox™ AL GSO : solarisation resistance glaze providing high bulk reflectivity.
b) Sintox™ AL GSY : this glaze cuts off wavelengths in the UV range which reduces the amount of heat generated in the laser head with the benefit of extended service life, reduced cooling requirements and in some cases reduces operating costs.

Sintox FF is a high purity Alumina material and shows reflectance figures of typically 96 to 98% over the 570nm to 2000nm range of wavelengths. This fully dense material shows higher strength and scratch resistance than traditional polymeric and thermoplastic materials.

Furthermore the mechanical strength of the material allows the design and manufacturing of thin wall section reflectors to minimise the laser’s final assembly weight and design space requirements.

Typical applications for ceramic reflectors are:

• Industrial lasers for use with for example cutting, welding, marking,
• Medical lasers used for example in ophthalmic and surgical applications
• Intense Pulse Lamp (IPL) systems for use with example hair removal and tattoo removal
• DPSS lasers for use in scientific and medical applications plus range finders

A wide range of standard and custom designed reflectors with different glaze combinations are available. Some of our standard products we offer are below: