Providing anti-reflection throughout the visible region this coating provides :

• Rave < 0.5% and Rabsolute < 0.6% from 420-700nm.
• Similar specs can be met on different substrates, please contact our sales department for details.

A single wavelength anti-reflection coating, v-coat, provides:

• R < 0.25% at the specified wavelength (200nm - 2500nm). As experience shows these values are typically R <0.1%.
  

A dual band coating to cover the pump wavelength:

• (R < 0.3% at 808nm) and the fundamental output (R < 0.15% at 1064nm) of Nd:YAG and Nd:VYO4.
• This design is optimized for high laser damage thresholds, typically > 1GW/cm2 at 1064nm.

Dual band reflectors can be designed for covering two different wavelengths.
The example above shows the fundamental of Nd:YAG at 1064nm and second harmonic at 532nm. The coatings can be specified for high laser damage applications, please contact our sale department for details.

High reflector coatings for a single wavelength provide:

• Reflectance values > 98.5% from 200-399nm and
• 99.5% from 400-2500nm at near normal incidence.
• At higher angles of incidence polarization effects become more apparent however, reflectance values of > 98% from 200-399nm and > 99% from 400-2500nm are typical.
• Higher reflectance values and other angles of incidence are available, please contact our sales department for details.
  

Long wave pass filters are typically used for attenuating undesired wavelengths. They also can be optimized for transmitting specific wavelength ranges. When specifying the filter it is necessary to specify the wavelength at which the transmission is 50% the peak value, referred to as the cut-on wavelength.

Short wave pass filters are typically used for attenuating undesired wavelengths. They also can be optimized for transmitting specific wavelength ranges. When specifying the filter it is necessary to specify the wavelength at which the transmission is 50% the peak value, referred to as the cut-off wavelength.

Inrad’s standard OPO coating for ZGP has the following specs for λ_pump = 2050nm, R < 0.5% @ λ_pump and R < 2.5% @ (1.68-2.40)* λ_pump. Other coatings are available to match ZGP’s wide variety of applications.