The HighFinesse Linewidth Analyzers are high-end optical instruments for measuring, analyzing and controlling frequency and intensity noise of laser light sources. By combining an interferometric working principle with ultra-low noise electronics, a superb sensitivity is achieved. The real-time signal output offers the option for a fast feedback loop that can be used to actively reduce the frequency noise of the laser.
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Analyzing Narrow- and Broadband Lasers
HighFinesse LWA-10k series
The 10k models cover broad wavelength ranges and can be used to analyze narrow- and broadband laser sources within the NIR. Analysis tools like time resolved frequency deviations charts, frequency noise density spectra and lineshape representation enable detailed laser noise analysis.
HighFinesse LWA-1k series
The 1k models are ultimate high-end optical instruments engineered to analyze and control the frequency noise and lineshape of ultra-narrow lasers. Additionally these instruments offer the option to investigate the relative intensity noise of the laser light source with very high resolution and sensitivity.
Analyzing Options
- Frequency deviation time trace and histogram
- Frequency noise density spectrum
- Intensity noise spectrum
- Laser lineshape spectrum
Evaluation Options
- Effective linewidth:
- Noise at all measured frequencies contributing to the linewidth
- Lorentzian, Gaussian and Voigt fits for lineshape spectra
- Intrinsic linewidth:
- Level of noise floor at higher frequencies
For further technical details and specifications:
Download brochure here.
How Does it Work:
Download Technology Note: Ultra Sensitive Laser Noise Characterization: Measuring, analyzing and controlling laser linewidth and lineshape spectra
Representative Data
Time trace of frequency deviations
Frequency noise spectrum
Lineshape spectrum