Superb Sensitivity: Linewidth Analyzer
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. The versatile LWA-1k analyzes both, narrow laser lines down to 350 Hz effective laser linewidth, as well as broader sources up to 10 MHz.
An intuitively usable software interface performing the analysis provides the frequency noise related plots and values, such as the frequency noise spectrum and the lineshape spectrum together with the results of intrinsic and combined linewidth.
The LWA-1k is ideal for optimizing the stability of laser setups by revealing mechanical, acoustic and electronic noise. Additionally, the output signal provided by the analyzer unit of the LWA-1k series can be used as an error signal for further linewidth or RIN reduction in combination with an appropriate hardware such as a PID-controller.
The main features are:
- Frequency noise, spectral lineshape and relative intensity noise (RIN) analysis evaluation of intrinsic and effective linewidth
- Intrinsic linewidth measurement range down to 350 Hz
- Effective linewidth measurement range from 1 kHz up to 10 MHz
- Frequency noise spectrum sensitivity down to 10 Hz/√ Hz between 10 Hz and 10 MHz
- RIN down to −150 dB/Hz
- Error signal generator for further linewidth, frequency noise or RIN reduction
- Powerful tool for a detailed analysis of noise sources like servo bumps, frequency drifts, power supply noise and acoustics.
The LWA-1k Series will be displayed at our Booth 3209 during the BiOS/Photonics West 2020 (Feb 1st – Feb. 6th).