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Photoelastic modulators

A "Dynamic Optical Waveguide".
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A "Dynamic Optical Waveguide"

The Photoelastic modulators (PEM) are modulation devices that can change the polarization state of light, causing a dynamic phase retardation of transmitted light. The light-transmitting part of the device is made of isotropic materials, which vibrate periodically at its inherent resonant frequency. Due to the photoelastic effect, the refractive index of the optical material changes periodically, altering the phase retardation of incident light. PEMs produced by CASTECH have the advantages of large acceptance angle, large aperture, wide wavelength range, high modulation frequency, and high precision.

According to the working mode, PEMs produced by CASTECH can be divided into one-dimensional and two-dimensional types. One-dimensional PEMs have only one vibration dimension, suitable for ultraviolet, visible, and near-infrared bands; two-dimensional PEMs have two vibration dimensions, enabling a wider range of phase modulation, mainly used in visible and infrared bands.

 

Applications:

●Polarization measurement    

●Quantum sensing    

●Spectrometer

●Astronomical observation    

●Magnetometer

CASTECH's products are produced independently throughout the entire process and can be customized according to customer needs. Refer to the following list for standard products.

 

 

 

    

 

 

Keyword:
Photoelastic modulators
dynamic wave plate
dynamic phase retardation
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We could not find any corresponding parameters, please add them to the properties table

Model Number:CPEM-f-a-m-t-h-w

Frequency (f)

Aperture (a)

Material (m)

Type (t)

Housing (h)

Wavelength (w)

40 (40 kHz)

...

13 (13 mm)

...

FS

...

1

2

A01

...

633nm

...

 

 

Typical Specifications

Frequency

Type

Aperture

Transmission

Acceptance Angle

 Retardation

50 kHz

1D

16 mm

≥98 %

20°

λ/2

60 kHz

1D

13 mm

≥98 %

20°

λ/2

50 kHz

2D

22 mm

≥98 %

20°

λ/2

60 kHz

2D

13 mm

≥98 %

20°

λ/2

*For more frequencies and wavelengths, please consult us.

 

Housing dimensions(mm):

Products

Photoelastic modulators
geng7
  • Photoelastic modulators

  • A "Dynamic Optical Waveguide".
Description
Parameters
CAS'TechClass
Download

A "Dynamic Optical Waveguide"

The Photoelastic modulators (PEM) are modulation devices that can change the polarization state of light, causing a dynamic phase retardation of transmitted light. The light-transmitting part of the device is made of isotropic materials, which vibrate periodically at its inherent resonant frequency. Due to the photoelastic effect, the refractive index of the optical material changes periodically, altering the phase retardation of incident light. PEMs produced by CASTECH have the advantages of large acceptance angle, large aperture, wide wavelength range, high modulation frequency, and high precision.

According to the working mode, PEMs produced by CASTECH can be divided into one-dimensional and two-dimensional types. One-dimensional PEMs have only one vibration dimension, suitable for ultraviolet, visible, and near-infrared bands; two-dimensional PEMs have two vibration dimensions, enabling a wider range of phase modulation, mainly used in visible and infrared bands.

 

Applications:

●Polarization measurement    

●Quantum sensing    

●Spectrometer

●Astronomical observation    

●Magnetometer

CASTECH's products are produced independently throughout the entire process and can be customized according to customer needs. Refer to the following list for standard products.

 

 

 

    

 

 

Model Number:CPEM-f-a-m-t-h-w

Frequency (f)

Aperture (a)

Material (m)

Type (t)

Housing (h)

Wavelength (w)

40 (40 kHz)

...

13 (13 mm)

...

FS

...

1

2

A01

...

633nm

...

 

 

Typical Specifications

Frequency

Type

Aperture

Transmission

Acceptance Angle

 Retardation

50 kHz

1D

16 mm

≥98 %

20°

λ/2

60 kHz

1D

13 mm

≥98 %

20°

λ/2

50 kHz

2D

22 mm

≥98 %

20°

λ/2

60 kHz

2D

13 mm

≥98 %

20°

λ/2

*For more frequencies and wavelengths, please consult us.

 

Housing dimensions(mm):

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