Ws300

Compact Spectrometer for Laser WL Measurement

The WS300 spectrometer is engineered for analyzing spectra of CW and pulsed laser light sources. Its relatively low aperture ratio combined with high spectral resolution makes it ideal for precise wavelength measurements of lasers, diodes, and other high-power optical emitters. 

  • High resolution – up to 15pm

  • Compact design

  • No need for an external power source

  • Choice of spectral ranges and resolutions tailored to your requirement

Key Features:

  • Customizable Spectral Range and Resolution
    The grating parameters—including spectral range, resolution, and lines density—are selected when placing your order. Average values for grating dispersion, spectral resolution, and detector bandpass are detailed in the specifications. For precise parameter calculations, it's recommended to contact us.

  • Detector Options
    The WS300 can be configured with one of three non-cooled linear CCD sensors. Among them, the TCD1304 is the most popular, offering high sensitivity and narrow pixels, which ensures excellent spectral resolution even without cooling.

  • Plug-and-Play Operation

    • Factory-calibrated, no user alignment required

    • No moving parts, ensuring stability and long-term reliability

    • Powered and controlled via USB (Full-Speed 

  • Triggering and Synchronization

    • TTL-compatible triggering (input and output) via BNC-58 connector

    • Ideal for synchronized measurements with external light sources or devices

  • Flexible Light Input

    • Works with or without optical fiber 

    • Direct input or fiber input (UV optical fiber included in the set 

    • USB control cable and synchronization cables are also include

  • The WS300 spectrometer is a reliable, compact instrument specifically designed for analyzing spectra of CW and pulsed laser light sources, offering high spectral resolution and robust performance for demanding optical measurements.

    • Laser diagnostic 

    • Wavelength measurements

    • Research setups requiring stability and repeatability

    • Integration into custom systems via fiber input/output

Ws300 TECHNICAL FEATURES:

    • Optical scheme: Czerny-Turner

    • Focal Length, mm: 150

    • F/Number: 1 : 12.0

    • Entrance slit (width x height), um: 20 x 3000

Diffraction Grating

Grooves/mm 200 300 400 600 1200 1800 1800-II1) 1800-III2)
Reciprocal linear dispersion (average), nm/mm 33.15 21.5 16.2 10.5 4.7 3.0 1.3 0.8
Spectral resolution (average), nm 0.66 0.44 0.32 0.21 0.1 0.06 0.025 0.015
Possible detection range, nm 200–1100 200–1100 200–1100 200–1100 200–1100 200–800 200–450 200–300
Multi-channel detector concurrent registration spectral range (average), nm3) 920 620 460 300 135 85 38 23

  • Diffraction grating: one from the list below

1) II-order of diffraction
2) III-order of diffraction
3) For linear image sensor TCD1304 and single-channel S150

Diffraction Grating

Linear image sensor Toshiba TCD1304 S13496 Hamamatsu S11639-01 Hamamatsu
Number of pixels 3648 4096 2048
Pixel size, mm² 0.008 × 0.2 0.007 × 0.2 0.014 × 0.2
Active area, mm 29.18 28.67 28.67
Spectral response range, nm 200–1100 200–1100 200–1100
Maximum photo-sensitivity, V/(lx·s) 160 650 1300
Anti-blooming1) No Yes Yes
Min. exposure time, ms 7.4 0.018 0.018
Max. exposure time, s2) 3 90 90
Dynamic range 2000:1 5000:1 5000:1
ADC number of bits 16 bits / 65536 counts 16 bits / 65536 counts 16 bits / 65536 counts
Mean-square reading noise, ADC counts <8 <4 <4
Electronic shutter Option Option Option
Computer interface Full-Speed USB Full-Speed USB Full-Speed USB
Triggering IN/OUT IN/OUT IN/OUT

1) Anti-blooming: the ability to prevent the spilling of excess photo-charges from a saturated pixel to neighboring elements.
2) Max. exposure time is the time for which the dark signal reaches 25% of the dynamic range at 25°C.

    • Optical input:
      — Direct input through the entrance slit
      — Optical fiber: 0.6 (0.4) mm diameter, 1m length, SMA-905 connector (Optional)

    • Dimensions, mm: 113×190×72,5

    • Weight, kg: 2,6

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WS200-IR
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WS400