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5.1
5.1
  • Optical Switches

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Optical switch is a high-speed switch consists of phase modulator and polarizer. When an external voltage applied on the phase modulator, the so-called birefringence will be induced hence altering the polarization of light propagating the crystal at the polarizer. The polarizer will divide the light into two beams orthogonally as transmitted light and reflected light. The laser could be turned-on and turned-off quickly with response to the change of voltage.

CASTECH offers two types of optical switches as single-channel and multi-channels which utilize the highest quality crystals grown and processed at our site.

Single-channel type is characterized with high transmittance and high extinction ratio of transmitted light while easing the operation of adjustment.

Multi-channels type can control the switching between at least two beams and control the time of turning on & turning off of each channel respectively.

CASTECH also provides driver with rise/fall time up to nanoseconds matching our optical switches. Other spare parts like optical traps could also be integrated at will.

 

Applications:

● Laser industrial processing

● Beam splitting

● Frequency division

● Laser sensing system

● Ultrafast laser system

 

  Optical switch is a high-speed switch consists of phase modulator and polarizer. When an external voltage is applied on the phase modulator, the birefringence will be induced hence altering the polarization of light. The polarizer will divide the light into two beams orthogonally as transmitted light and reflected light. The laser could be turned-on and turned-off quickly with response to the change of voltage.
  CASTECH offers two types of optical switches as single-channel and multi-channels which adopt high quality crystals grown and processed in-house.
  Single-channel type is characterized with high transmittance and high extinction ratio of transmitted light whilst reduce the difficulty and complexity of the system.
  Multi-channels type can control the switching of at least two beams and control the time of turn on and off of each channel respectively.
  CASTECH provides drivers with rise/fall time of nanoseconds adapt to our optical switches. Accessories such as optical traps could be ordered separately.

 

 

 

Product Number

Type

(t)

Control

(c)

Power

(p)

Aperture

(a)

Wavelength

(λ)

Polarizer

(b)

Channel

(d)

COS-tc-p-a-λ-b-d

O

(Optical)

E

(Electro-optic)

A

(Automatic)

M

(Manual)

≤1000W

5,10,12,14,20mm...

343,355,

800,1030,

1064,1070nm...

B

(Brewster)

1

2

3

4

...

P

(PBS)

 

 

Product Number*

Power

Clear Aperture**

Wavelength

Extinction Ration

COS-OA-p-a-λ-B-1***

<1000W

5~30mm

1064, 532nm or other

>1000:1

COS-EA-p-a-λ-B-1****

<100W

2~20mm

1064, 532nm or other

>1000:1

COS-OA-p-a-λ-P-1***

<200W

5~20mm

1064, 532nm or other

>1000:1

COS-EA-p-a-λ-P-1****

<100W

2~20mm

1064, 532nm or other

>1000:1

COS-OA-p-a-λ-B-2***

<1000W

5~30mm

1064, 532nm or other

>500:1

COS-EA-p-a-λ-B-2****

<100W

2~20mm

1064, 532nm or other

>500:1

COS-OA-p-a-λ-P-2***

<200W

5~20mm

1064, 532nm or other

>800:1

COS-EA-p-a-λ-P-2****

<100W

2~20mm

1064, 532nm or other

>800:1

COS-EA-p-a-λ-B-4****

<100W

2~20mm

1064, 532nm or other

>200:1

COS-EA-p-a-λ-P-4****

<100W

2~20mm

1064, 532nm or other

>500:1

 

  *Customized products are available
  **The beam diameter (1/e2) is recommended to be less than 60% of the clear aperture
  ***Damage threshold: 5J/cm? @ 1064 nm, 10 ns, 10 Hz
  **** Damage threshold: 1J/cm? @ 1064 nm, 10 ns, 10 Hz

 

 

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.

 

 

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