True Zero Order Waveplates  1. Constructed of a true zero order waveplate and a BK7 substrate.As the waveplate is very thin and easy to be damaged,the Bk7 plate's function is to strengthen the waveplate.  2. Single Plate

Low Order Waveplate(Multiple order waveplates) are made from a single crystalline plate, are designed to give a retardation of several full waves, plus the desired fraction.

Calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (CaCO3).It's a negative uniaxial crystal and mostly used as visible and near IR polarizers. It has high birefringence, wide spectral transmission and availability in reasonably sized rhombs.

Rod lenses Light pipes is used in the fields of medical, electronic, information, agriculture, communication and etc. 1.All surfaces (end-faces and cylinder)polished; 2.Only end-faces polished; 3.Only Cylinder polished.

Yttrium Vanadate (Nd:YVO4) is one of the most efficient laser host crystal currently existing for diode laser-pumped solid-state lasers.

Titanium-doped Sapphire（Ti3+:Al2O3）crystals combine supreme physical and optical properties with broadest lasing range which is most widely used crystal for wavelength tunable lasers.