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  • Faraday Rotators

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Product description:

Faraday rotator provides non-reciprocal rotation while maintaining linear polarization, The plane of polarization will be rotated 45°when light transmits through the Faraday rotator in the forward direction and rotated additional 45° in the same relative direction with respect to magnetic field when light travels backwards from the reverse direction. It will generate total rotation of 90°and reject the light coming from the reverse direction.

CASTECH is renowned pioneer of crystals in laser industry. We dedicate to develop magneto-optical crystals with high Verdet constant and low absorption coefficient to deliver higher level reliability and less changed M2.Combined with our unique high LIDT process technology, we are able to supply customized Faraday rotators for high power applications, up to 400W average power. The working wavelength of our Faraday rotator family ranges from 355nm to 4500nm, and the aperture is up to 45mm.

 

Applications:

● Laser sensing system

● Ultrafast laser system

● OCT system

● Laser detection etc

 

Iintroduction:

  UV VIS NIR IR
Center Wavelength 355 405-850 980,1030,1064 1319,1342,1550,2000
Operating Wavelength Range ≥±10nm ≥±10nm ≥±15nm ≥±10nm
Peak Transmission >98 >98 >98 >95
M2 Degradation <10% <10% <10% <10%
Clear Aperture 2,3,5mm or others 2,3,5mm or others 2,3,5,15,25mmor others 2,3,5mm or others
Optical Power(Average) 1,5,10W Can be customized 10,30,50 Can be customized 10,30,50,100W Can be customized 10,30,50 Can be customized
Damage Threshold 3.5J/cm2 @ 10ns 3.5J/cm2 @ 10ns 10J/cm2 @ 10ns 5J/cm2 @ 10ns
Storage Temperature Range -20-70℃
Tunable Temperature Range 10-30℃
Faraday rotator provides non-reciprocal rotation while maintaining linear polarization. The plane of polarization will be rotated 45° when light transmits through the Faraday rotator in the forward direction and rotated additional 45° in the same relative direction with respect to magnetic field when light travels backwards from the reverse direction. It can reject the light coming from the reverse direction. CASTECH is dedicated to develop magneto-optical crystals with high Verdet constant and low absorption coefficient to deliver higher level reliability and less changed M2. Combined with our unique high LIDT process technology, we are able to supply customized Faraday rotators for high power applications, up to 400W average power. The working wavelength of our Faraday rotator family ranges from 355nm to 2000nm, and the aperture is up to 45mm.

 

  Polarization Reference:
  All Faraday rotators non-reciprocally rotates the plane of polarized light in 45.
  Extra half-wave plate for modifying output polarization is available on request.

 

 

Product Number

Type

(t)

Power

(p)

Aperture

(a)

Wavelength

(λ)

Wave Plate

(w)

 Housing

(h)

HPRO-t-p-a-λ-w-h

FS

(Common)

≤400W 

≤45 mm

532nm

633nm

780nm

850nm

980nm

1030nm

1064nm

1319nm

1550nm

2000nm

...

C

(Contained)

A01

A02

A03

...

N

(Not Contained)

≥400W

≤12 mm

 

 

Product Number*

Center Wavelength

Power**

Damage Threshold

10ns,10Hz

Clear Aperture 

Wave Plate

Transmittance

HPRO-FS-p-a-λ-w-A01(A02,A03)

532~980nm

≤50W

10J/cm² @532nm

≤12mm

C/N

>98%

HPRO-FS-p-a-λ-w-A05

1030,1064nm

≤400W

10J/cm² @1064nm

≤45mm

C/N

>98%

HPRO-FS-p-a-λ-w-A15

1030,1064nm

≥400W

10J/cm² @1064nm

≤12mm

N

>98%

HPRO-FS-p-a-λ-w-A07

1064nm

≤1W

1J/cm² @1064nm

≤2mm

N

>80%

HPRO-FS-p-a-λ-w-A04

1064nm

≤100W

10J/cm² @1064nm

≤3mm

C/N

>98%

HPRO-FS-p-a-λ-w-A06

1064nm

≤100W

10J/cm² @1064nm

≤4mm

C/N

>98%

HPRO-FS-p-a-λ-w-A08

1064nm

≤100W

10J/cm² @1064nm

≤4mm

N

>98%

HPRO-FS-p-a-λ-w-A02

1319,1550,2000nm

≤50W

10J/cm² @1064nm

≤10mm

C/N

>98%

 

  *Customized products are available.
  **Indicates the maximum average power products can handle.

 

Dimensions (mm):

 

 

Housing

Aperture

A

B

C

D

E

F

A01

≤5

54.5

38

48

60

22.2

45

A02

≤10

64.6

50.8

60

92

29

58

A03

≤12

68.5

63.5

73

100

39

76

A05

≤25

113.9

102

108

158

55

114.6

 

 

 

ABOUT US

  CASTECH Inc. is a recognized leading supplier of crystals, optics and laser components in the world. Utilizing proprietary crystal growth, fabrication, and polishing techniques, CASTECH has developed a broad range of magneto-optic, acousto-optics, electro-optic, photoelastic and laser application components. Here at CASTECH, we value comity, integrity, honesty, and innovation. Our mission is to be your dependable partner to help you in growth.

 

 

  Founded in 1988 by FIRSM (Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences).
  A public company (2008, Shenzhen, China, Stock Code: 002222).
  Sales revenue over US$80 millions.
  Over 1,000 employees.
  40,000 m2 facility.
  The ratio of domestic and international markets stands at 4:6.

 

 

HPRO-t-p-a-λ-w-h
Type(t) Power(p) Aperture(a) Wavelength(λ) Wave Plate(w) Housing(h)
FS 50 ≤5 1030/1064 N A01
FS 50 8,10 1030/1064 N A02
FS 50 12 1030/1064 N A03
FS 10 3 1064 N A04
FS 50 25 1064 N A05
FS 30 4 1064 N A06
FS 1 2 1064 N A07
FS 50 4 1064 N A08
FS 30 ≤5 1064 C A09
FS 50 8 1310 N A10
FS 50 5 2000 N A11
FS 50 45 1030/1064 N A12
FS 50 10 1064 C A13
FS 50 15 1064 N A14
FS 500 5 1064 N A16
FS 10 3 639 N A17
FS 10 3 1342 N A18
FS 350 5 2000 N A19

 

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