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Product Details

LWA

High Resolution Lineshape Analyzer

LWA

High Resolution Lineshape Analyzer

For narrow and broadband spectra of various lasers.

The HighFinesse Linewidth Analyzer (LWA) is a specialized high-end device for measuring and analyzing the spectral shape of various laser sources.

It is based on a scanning Fabry-PĂ©rot interferometer.

The LWA is perfectly suited for laser development and adjustment. In combination with a HighFinesse wavemeter high resolution classification of lasers and laser systems can be performed.

Main benefits and properties:
  • Different models cover large wavelength intervals in the complete optical regime
  • Measureable linewidths range from 0.1 – 1000 MHz depending on the model
  • Automatic evaluation of noise and lineshape spectra
  • High sample rate of 30 MS/s
  • High linewidth accuracy down to 40 kHz
  • No reference source required

Technical Information

General Specifications

Dimensions 150 x 280 x 78,7 mm
Weight 4.8 kg
Inteface Ethernet, LWA control software included
Optical Interface Fiber-coupled FC/APC
Operating System Windows 64-bit
Power Supply External controller with power supply included

Technical Specifications

Broadband Mode Narrowband Mode
Measurement Time < 1 s 1 - 5 s
Sampling Rate typ. 16 kSa/s typ. 30 MSa/s
Frequency Resolution x = 8:0.1 MHz
x = 2:0.02 MHz
Noise Spectrum <100 Hz
Lineshape Spectrum <2 kHz
Linewidth Accuracy 0.4 MHz 0.04 MHz
Evaluation Options Spectrum:
Relative frequencies
Absolute linewidth frequency
Noise Spectrum:
Absolute frequencies
Lineshape Spectrum:
Absolute linewidth frequency

Wavelength Range - Model Availability

Wavelength Range Model-FSR Broadband Mode Narrowband Mode
330 – 380 nm
330 – 380 nm
350-2
350-10
1.5 – 250
5 – 1000
0.1 – 1.5
0.2 – 5
380 – 430 nm
380 – 430 nm
405-2
405-10
1.5 – 250
5 – 1000
0.1 – 1.5
0.2 – 5
430 – 660 nm
430 – 660 nm
545-2
545-10
1.5 – 250
5 – 1000
0.1 – 1.5
0.2 – 5
615 – 885 nm
615 – 885 nm
750-2
750-8
1 – 250
4 – 1000
1 – 250
4 – 1000
825 – 1200 nm
825 – 1200 nm
1012-2
1012-8
1 – 250
4 – 1000
1 – 250
4 – 1000
1200 – 1700 nm
1200 – 1700 nm
1450-2
1450-8
1 – 250
4 – 1000
1 – 250
4 – 1000
Options  ...

Applications, Notes and Downloads

Application Examples

 Live image of the LWA software in broadband mode measuring a 780 nm laser and automatically evaluating the spectrum. The determined linewidth of the Lorentzian profile (red line) is 7.662 MHz, which is the lower limit of the broadband mode. The laser can be further evaluated in the narrowband mode.
 Live image of the LWA software in broadband mode measuring a 633 nm laser and automatically evaluating the spectrum. The determined linewidth of the Gaussian profile is 156.589 MHz.

Further Applications

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Downloads

  • Technical Specifications Linewidth Analyzer Download

Notes

For further technical information, application examples, diagrams and for customization, please contact: info@highfinesse.de

 

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