Beam Diagnostics

We offer camera-based devices with wavelength ranges from UV to IR. All are cameras are USB3.0, for the fastest data transfer rates.

Accessories for Beamage

Features

MANAGE THE WAVELENGTH

Since CMOS sensors are not sensitive to every frequency of the electromagnetic spectrum, we offer several wavelength management solutions to enhance the capabilities of the Beamage Beam Profiling Cameras.

MANAGE THE BEAM SIZE

A simple solution is offered to those who need to profile beams that are larger than the CMOS sensor (> 11.3 mm x 6.0 mm). This solution is a beam reducing optical component called Camera Lens. It works by indirectly imaging the reflection or transmission of the beam after it has passed through a diffusing element.

MANAGE THE LASER POWER

CMOS sensors have low saturation levels as well as low damage thresholds. It is thus very important that you control your laser power to get the best measurement possible and avoid damaging the Beamage camera.


MANAGE THE WAVELENGTH

 

UV CONVERTERS

UV Converters take advantage of a phenomenon called fluorescence to extend the performance range of the Beamage beam profiling camera to ultraviolet wavelengths. A fluorescent crystal located at the entrance of the converter absorbs UV wavelengths and reemits longer wavelengths (in the visible spectrum), which are less energetic and detected by the CMOS sensor.

MAIN CHARACTERISTICS

 

  • Transforms wavelengths contained between X-Rays and 400 nm to visible and near-IR wavelengths.
  • Images larger beams due to the magnification properties of the optics.
  • Built with an iris at the output port for a control of the exposure on the CMOS sensor.
  • Removable extension tube that is easily fixed onto the entrance port of the Beamage camera.
  • Ready to use within minutes

IR ADAPTORS

Typically, a CMOS silicon sensor is operating at its full potential when imaging lasers with wavelengths between 350 nm and 1150 nm*. If you want to extend the performance range of your Beamage beam profiling camera to the near-IR telecom wavelengths band, you can use the IR Adaptor. This ideal solution takes advantage of a multi-photon absorption process to extend the sensitivity range of the camera sensor to a portion of the near-IR spectrum (1495 nm - 1595 nm).

MAIN CHARACTERISTICS

 

  • Converts wavelengths between 1495 nm and 1595 nm to shorter wavelengths between 950 nm and 1075 nm.
  • Images larger beams due to the convergent properties of the optics (3.29X).
  • Built with a high quality coated anti-reflection input window that allows wavelength conversion with low distortion and maximum image resolution.
  • Removable and easily C-mounted onto the entrance port of the camera.
  • Ready to use within minutes

 

SPECIFICATIONS

MODEL

IR ADAPTOR

Active Area

27.5 mm Ø

IR Spectral Range

1495 nm - 1595 nm

Peak IR Sensitivity

1510 nm and 1540 nm

Converted Wavelengths

950 nm - 1075 nm

Pixel Multiplication Factor

3.29

Minimum Beam Size

230 µm

Maximum Beam Size

19 mm

Maximum Resolution

12 lp/mm over active area 40 lp/mm at sensor focal plane

Distortion

-1.0% barrel distortion (inverted image)

Linearity

Non-Linear, IR converted output ∝ IR input intensity ^1.41

Spectral Transmission

360 nm - 2000 nm @ F30.8

Damage Threshold

1 W/cm2

Dimensions

46 mm Ø x 97 mm L

Operating Temperature

-10°C to +40°C

Weight

210 g

Product Number

201061


UV BANDPASS FILTER

We also offer a color glass filter specially designed for the UV spectrum. Depending on the wavelength, the UG11-UV filter transmits 20% to 70% of the input beam power. It is particularly useful for applications with wavelengths contained between 250 nm and 370 nm. Other wavelengths are blocked by the filter. The UG11-UV is SM1 threaded and comes with a SM1 to C-mount adaptor.

SPECIFICATIONS

MODEL

UG11-UV

Spectral Range

280 nm – 370 nm

Diameter

25 mm Ø

Clear Aperture

80% of area

Dimensional Tolerance

+0.0/-0.2 mm

Thickness

3 mm

Thickness Tolerance

+0.0/-0.2 mm

Parallelism

< 3 arcmin

Surface Flatness

< λ/4

Maximum Power

1 W

Surface Quality

40-20 Scratch-Dig

Damage Threshold

30 W/cm2 (typical)

Product Number

202602


IR FILTER

The B3-IR-FILTER is a color glass filter specifically designed for IR applications. Acting as a low-pass filter, the B3-IR-FILTER cuts all the wavelengths below 1250 nm and only lets the IR wavelengths pass. It transmits approximately 70% of the incident light. The B3-IR-FILTER is SM1 threaded and comes with a SM1 to C-mount adaptor so you can mount it on the Beamage camera.

SPECIFICATIONS

MODEL

B3-IR-FILTER

Spectral Range

1250 – 1350 nm

Diameter

25 mm Ø

Clear Aperture

80% of area

Dimensional Tolerance

+0.0/-0.2 mm

Thickness

6.3 mm max

Parallelism

< 3 arcmin

Surface Flatness

< λ/4

Maximum Power

1 W

Surface Quality

80-50 Scratch-Dig

Damage Threshold

30 W/cm2 (typical)

Product Number

202855

 

MANAGE THE BEAM SIZE

 

CAMERA LENSES

Camera lenses work by indirectly imaging on the sensor the reflection or the transmission of a beam that previously went through a diffusing material such as glass (see diagrams below). It is necessary to use a Camera Lens to image beams that are larger than the CMOS sensor (11.3 mm X 6.0 mm) of the Beamage beam profiling camera. A Camera Lens can be directly C-mounted onto the aperture of the Beamage camera.

SPECIFICATIONS

MODEL

CL-25

CL-50

Focal Length

25 mm

50 mm

Maximum Beam Size

2000 mm X 2000 mm (not a limiting factor)

Maximum Measurable Intensity / Energy

Very high because of indirect mechanism

Inverted Image

Yes

Yes

Beam Distortion

Setup, lens aberration and speckles from diffusing glass

Diffusing Material Needed

Yes

Yes

Magnification Calibration Needed

Yes

Yes

Possibility of Wavelength Conversion

Yes

Yes

Optical Filter Needed

Rarely to never

Rarely to never

Removable

Yes

Yes

Product Number

202343

202344

To determine which lens better fits your requirements, refer to the table below.

PRODUCT

PROD #

FOCAL LENGTH

HORIZONTAL
FOV

FOV AT 1 m

MIN WORKING DIST

CL-25

202343

25 mm

14°

245 mm

0.5 m

CL-50

202344

50 mm

7°

120 mm

1 m

To calculate linear FOV (Field of View) at distances other than 1 m, simply multiply the value found in the table by the distance in meters.

MANAGE THE LASER POWER

 

NEUTRAL DENSITY (ND) FILTER

We offer various SM1 threaded absorptive ND (Neutral Density) filters that can be fixed directly on the aperture of the Beamage camera via a SM1 to C-mount adaptor. We also offer SM2 threaded filters that can be fixed on the Beamage-4M-FOCUS via a SM2 to T-Mount adaptor. Subsequent filters can be stacked directly on each other. These filters reduce the intensity of all wavelengths without affecting the wavefront of the beam or distorting the image. Sets of 3 filters or 6 filters as well as individual filters are available. Each 25 mm filter comes with a SM1 to C-mount adaptor and each 50 mm filter comes with a SM2 to T-Mount adaptor.

SPECIFICATIONS

MODEL

ND0.5 to ND5.0

Spectral Range

400 nm – 1595 nm

Filter Diameter

25 mm Ø

Clear Aperture

22.5 mm Ø (90% of diameter)

Dimensional Tolerance

+0.0/-0.25 mm

Optical Density Tolerance

± 5%

Parallelism

< 10 arcmin

Transmitted Wavefront Error

< λ/10 at 633 nm

Surface Flatness

< λ/4

Surface Quality

40-20 Scratch-Dig

Maximum Power

1 W

Damage Thresholds

100 W/cm2 or 3 J/cm2

BEAM SAMPLERS - UP TO 500 W

The BA Series optical attenuators use Fresnel reflection on two orthogonal wedges to pick off a small fraction of the input beam. Within the 400 nm - 2500 nm range, they provide a fixed 103 (30 dB) attenuation that weakly depends on the wavelength. The incoming beam polarization state and irradiance are preserved. The wavefront distortion is negligible and the laser output power stability is not affected. These beam samplers can be connected to the Beamage via a male to male C-mount adaptor (sold with the Beam Sampler) and can be easily combined with the ND filters (sold separately).

SUGGESTED USES

 

  • Monitor power and beam profile simultaneously (BA16K models only)
  • Polarization insensitive beam-splitter with no back-reflections
  • Optical pick-off for use with our energy or power detectors
  • Attenuator for our high sensitivity detectors like M6, PH, etc.

 

MODEL

BA16-60S

BA16K-150S-H5-D0

BA16K-500F-H9-D0

Maximum Power

60 W

150 W

500 W

Effective Aperture

16 mm Ø

16 mm Ø

16 mm Ø

Cooling Method

Convection

Convection

Fan

Spectral Range

200-2100 nm

200-2100 nm

200-2100 nm

Integrated Power Meter

None

UP19K-15S-H5-D0

UP19K-110F-H9-D0

Average Attenuation

1700 at 1064 nm

1700 at 1064 nm

1700 at 1064 nm

Optical Wedges Material

Uncoated UV Fused Silica

Uncoated UV Fused Silica

Uncoated UV Fused Silica

Residual Beam Deviation

4°

4°

4°