The bulk chips have many geometrics. Along the longitudinal direction, they can be classified by periodically poled and aperiodically poled.
HCP provides the following standard bulk chip to meet your application requirement:
Please refer the standard product list to find your PPLN gratings!
We can also help you to design suitable QPM periods and QPM structures for selected PPLN/PPLT materials to achieve desired phase-matching and spectrum at specified operation temperature with consideration of input & output power/energy as well as their spectrum/pulse properties.
Table.1 The comparisons of several nonlinear cyrstals.
Explanation on Periodic/Aperiodic Structure:
Periodically poled chips are suitable for single wavelength conversion and the most efficient, but the limited phase-matching bandwidth often restricts its purpose for multi-wavelength conversion or ultrashort pulse wavelength conversion. Aaperiodically poled chips such as cascade, chirped grating or even a engineered optical superlattice realize the feasibility of engineerable PM spectrum for many important applications. At the transverse direction, there are classified by mutiples and fan-out grating, allowing the tunability of PM spctrum by translating the chips along the transverse direction.