Fiber Mode Analyzer

STAR-CMC-1550 Characterisation of Fiber Modal Content 

The STAR-CMC-1550 Characterisation of Modal Content uses the spatially and spectrally resolved imaging (S²) technique to identify the propagation modes of few-mode fibers. It consists of two different unit: a tunable laser and a receiver unit. The STAR-CMC-1550 allows to obtain the Differential Group Delay (DGD) for each propagation mode and the relative intensity, or Multipath Interference (MPI), compared to the most excited mode. Moreover, STAR-CMC-1550 allows to reconstruct the profiles and phases of the guided modes of the fiber under test. 

Features & Benefits:

• Measure fibers up to 400 µm in diameter

• Measure hollow and solid core few-mode fibers

• Reconstruction of propagation mode profiles and phase

• Calculate the relative intensity of high order modes compared to the most excited mode

• Calculate the DGD of the propagation modes 

Technical Specification

Measurement capability

• Fibre diameter: < 400 µm

• Fiber Length: 5 to 100 m

• Measurement time** : < 90 sec 

• Fiber Type: Few-mode solid and hollow core fibres

** analysing 2000 images 

Optical

• Measurement wavelength: 1480 to 1630 nm

• Wavelength resolution: 10 pm

• Max DGD: 365 ps

• DGD resolution: 0.05 ps

• Image sensor: InGaAs 10.8x12.3 mm, 512x640 pixels, 20 µm pixel pitch

• Exposure range: 0.1ms to 20ms exposure time

• A/D conversion: 16 bit 

Physical

• Weight: 7kg (Tunable laser); 8kg (Receiver unit)

• Size: 0.22m x 0.385m x 0.131m (Tunable laser); 0.306m x 0.606m x 0.145m (Receiver unit)

• Operating Temp: 15-30 0 C

• Humidity: 5%-95%. Relative, non-condensing

• Computer requirements: All systems are supplied with a computer running up-to-date Windows operating system

• Data interface: 1 X USB 3.0 (USB A to USB B: 1m cable supplied)