DeLn manufacturer with high quality of waveplate. we can supply waveplates such as: Multi Order Waveplate; Zero Order Waveplate; True Zero Order Waveplate;Dual Wavelength Waveplate; Achromatic Waveplate.

 

 

Types of Waveplate

 

 

Frequently Used Wavelength (nm)

 

 

The zero order waveplate is designed to give a retardance of zero full waves, plus the desired fraction. Zero order waveplate shows better performances than multiple order waveplates, it has broad bandwidth and a lower sensitivity to temperature and wavelength changes.

 

²         Better Temperature Bandwidth

²        Wide Wavelength Bandwidth

²        AR Coated

²        High Damage Threshold

 

Optically Contacted & Cemented Zero Order

Air Spaced Zero Order Waveplate

 

 

True Zero Order Waveplate 

 

True Zero Order Waveplate- Cemented 

This type of zero order waveplate is 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        Cemented by Epoxy

²        Wide Angle Acceptance

²        Better Temperature Bandwidth

²        Wide Wavelength Bandwidth

²        Good wavefront and Parallelism

²        AR Coated,

 

Diameter(mm)	λ/4 Part No.	λ/2 Part No.
10	WPFQ0101	WPFH0101
12.7	WPFQ0102	WPFH0102
15	WPFQ0103	WPFH0103
20	WPFQ0104	WPFH0104
25.4	WPFQ0105	WPFH0105
30	WPFQ0106	WPFH0106

 

True Zero Order Waveplates- Single Plate

 

This type of zero order waveplate is designed for high damage threshold application; it is mainly used in fiber communication. As the plate is very thin (Thickness >0.04mm), it's easy to break during operation. These ultra thin waveplate ensures the best temperature bandwidth, angle bandwidth and wavelength bandwidth.

Wavelength: λ/4: 1480nm, 1550nm   λ/2: 1310nm, 1480nm, 1550nm

 

 

Multi Order Waveplates

 

Multiple order waveplate means the retardance of a light path will undergo a certain number of full wavelength shifts in addition to the fractional design retardance. The thickness of multi order waveplate is always around 0.5mm. Compared with zero order waveplate, multi order waveplate is more sensitive to wavelength and temperature changes. However, they are less expensive and widely used in many applications where the increased sensitivities are not critical.

 

²        Thickness: 0.3-0.5mm

²        High Damage Threshold

²        Better Wavefront and Parallelism

²        Low Cost

 

 

 

Dual Wavelength Waveplate

 

Dual wavelength waveplate is a multiple waveplate that provide a specific retardance at two different wavelengths; it's particularly useful when used in conjunction with other polarization sensitive components to separate coaxial laser beams of different wavelength. 

 

²        Thickness: <2.0mm

²        Optional wavelength available

²        High damage threshold

  

                                                  

 

 

Achromatic waveplate is made from two different substrate materials such as crystal quartz and magnesium fluoride. For the single material waveplates the working wavelength is very limited because of the dispersion of the material. While Achromatic Waveplate uses two different kinds of material, the dispersions of the birefringence are also different. Hence such waveplate is not sensitive to the wavelength change. 

 

²        Epoxy Cemented or Air Spaced available

²        Very Broad Bandwidth

²        Custom size available

  

 

Epoxy Cemented

 

Air Spaced