Rochon Polarizers

Rochon polarizer is one of the earliest designs, which is made of two birefringent material prisms cemented together. Both ordinary and extraordinary beams propagate collinearly down the optic axis in the first prism under the ordinary refractive index. Upon entering the second prism the ordinary beam experiences the same refractive index and continues undeviated. The extra-ordinary beam, however, now has a lower refractive index and is refracted at the interface. The angle of refraction is further increased at the birefringent material/air exit surface. Any separation angle can be designed for specific wavelength upon the requirement. The separation angle of standard products vs wavelength is shown in the plot below.

Separation Angular of Standard Products vs Wavelength

a -BBO, 190-3500nm

Quartz, 200-3300nm

YVO4, 400-4000nm

Specifications:

Material:	a -BBO, MgF₂, YVO4, Quartz
Wavelength Range:	a -BBO:190-3500 nm, MgF₂:130-6000nm,YVO4:400-4000nm,Quartz:200-2300nm
Extinction Ratio:	Quartz:<5x10^-5 ; a -BBO, YVO4:<5x10 ^-6; MgF₂:<5x10 ^-6
Parallelism:	<1 arc Min
Surface Quality:	20-10
Beam Deviation:	Typical: <3', High Precision: <3"
Wavefornt Distortion:	λ/4@633nm
Damage Threshold:	>500 MW/cm ²
Coating:	Single Layer MgF₂
Mount:	Black Anodized Aluminium

RCP Separation Angle

	RCP5000	RCP6000	RCP8000	RCP9000
130	1.40
150	1.62
170	1.59
190	1.55	13.93
200	1.53	12.78		1.46
266	1.44	9.82		1.23
355	1.39	8.80		1.12
400	1.37	8.58	13.09	1.09
532	1.35	8.25	11.45	1.04
633	1.34	8.14	10.93	1.03
808	1.33	8.05	10.50	1.01
980	1.32	8.02	10.29	1.00
1064	1.32	8.00	10.22	1.00
1319	1.31	8.01	10.09	1.00
1550	1.30	8.03	10.03	1.00
2000	1.28	8.11	9.96	1.00
2500	1.25	8.23	9.91
3000	1.22	8.39	9.88
4000	1.13	8.83	9.83
5000	1.01	9.43	9.79
6000	0.85

Standard Products

1. a -BBO Rochon Polarizer

Part No.	Wavelength Range(nm)	Extinction Ratio	Separation Angle(°)	C.A. f a (mm)	O.D. f d (mm)	L±0.1(mm)
RCP6006	190-3500(Single Layer MgF2)(Coating@800nm)	<5x10^-6	8.0°-14°8.05°@800nm	5	15	8
RCP6008				7	25.4	11
RCP6010				9	25.4	13
RCP6015				13.5	30	18
RCP6020				18	38	22

2. Quartz Rochon Polarizer

Part No.	Wavelength Range(nm)	Extinction Ratio	Separation Angle(°)	C.A. f a (mm)	O.D. f d (mm)	L±0.1(mm)
RCP9006	200~2300（Single Layer MgF2）(Coating@1064nm)	<4x10^-5	1.0°-1.5°1°@1064nm	5	15	16
RCP9008				7	25.4	20
RCP9010				9	25.4	25
RCP9015				13.5	30	35
RCP9020				18	38	45

3. YVO4 Rochon Polarizer

Part No.	Wavelength Range(nm)	Extinction Ratio	Separation Angle(°)	C.A. f a (mm)	O.D. f d (mm)	L±0.1(mm)
RCP8006	400~4000(Single LayerMgF2)(Coating@1550nm)	<4x10^-5	9.8°-13.0°10°@1064nm	5	15	8
RCP8008				7	25.4	11
RCP8010				9	25.4	13
RCP8015				13.5	30	18
RCP8020				18	38	22

Note: "RFQ" stands for "Request For Quoting".

4. MgF2 Rochon Polarizer

Part No.	Wavelength Range(nm)	Extinction Ratio	Separation Angle(°)	C.A. Φa (mm)	O.D. Φ d (mm)	L±0.1(mm)
RCP5006	130~6000(Uncoating\|)	<5x10^-5	1.35°@532 nm	5	15	16
RCP5008				7	25.4	20
RCP5010				9	25.4	25
RCP5015				13.5	30	35
RCP5020				18	38	45

Note: Price list is for quantity <=5 pcs .

Call for OEM quantity pricing and Custom Design Polarizer.
A wide variety of custom design Rochon Polarizer are available upon request
Customer Designed Separation Angle at Certain Wavelength is available upon request
Custom Size Mount is available upon request
AR coated Polarizer is available upon request

Wollaston Polarizers Broad Band Polarization Beam Combiner

*	Name：
*	Email：
*	Company：

Products List