RC Laser Spectrum Analyzer

The RC Series Laser Spectrum Analyzer is a plano mirror Fabry-Perot interferometer-based system that offers versatility and stability for the precise spectral characterization of virtually any CW laser. With an FSR that is continuously variable from 1 to more than 1500 GHz, the RC System accommodates narrow single-frequency lasers, lasers with large linewidths, or sources emitting a range of frequencies. High resolution measurements of laser linewidth, longitudinal mode structure, and frequency stability are ensured with a guaranteed finesse of 150. And Super Invar construction results in superb stability. The RC Series Laser Spectrum Analyzer is the system of choice for a variety of applications requiring precision and stability.

The main features are:

System includes:

Specifications

Cavity Design Plano Mirror Geometry
Free Spectral Range (FSR)1 1 - 1500 GHz (continuously variable)
Finesse2 > 150
Minimum Resolvable Bandwidth FSR/Finesse
Wavelength Range Custom Ranges:
  • Within 450-900 nm, range has100 nm bandwidth
  • Within 900-1800 nm, range has150 nm bandwidth
  • Within 1.8-3.5 µm, range has300 nm bandwidth

Standard Range:

  • 1.28-1.58 µm
Mirror Reflectivity 99.3% nominal
Transmission > 10%
Input Aperture3 20 mm
PZT Scan Distance 1.25 µm/1000 V or 6 µm/1000 V (IR version)
PZT Non-Linearity < 1% or < 5% (IR version)
Scan Non-Linearity4 < 0.1% or < 0.5% (IR version)
Construction Thermally Stable Super Invar

Notes:

1.

The FSR is specified for a minimum mirror spacing of 0.1 mm, but smaller spacing (larger FSR) can be achieved when special precautions are taken to protect the mirrors.
2.

For a cavity spacing of less than 10 mm.
3.

The finesse specification is based on a laser beam diameter of less than 3 mm.
4.

With electronic compensation provided by the RG-93 Ramp Generator.

  

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