Wasatch Photonics

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WP 785 Raman Spectrometer + Laser

Create a flexible, semi-integrated system using this compact, high sensitivity spectrometer featuring an integrated 450 mW multimode laser.

  • Fiber coupling to probe or other sample optics
  • Benchtop quality data, “compact” price
  • Up to 30x faster measurements
  • Superior stray light suppression, high SNR
  • Trace-level limit of detection
  • High thermal stability & reproducibility
  • ENLIGHTEN™ spectroscopy software – included!

Technical Notes

Applications

We’ve maximized the efficiency of our WP 785 spectrometer + laser to give you more sensitivity, better SNR, and faster measurements in a compact footprint. Collect more light with our f/1.3 input, keep more light with our patented high transmission VPH gratings & diffraction-limited optics, and detect more light with scientific-grade detectors. When tested side by side, our spectrometers consistently outperform larger, more expensive units. From sample coupling to detector cooling, we give you more options to get the exact performance you need, powered by our free ENLIGHTEN™ spectroscopy software.

Call us to discuss your application!

WP 785 Raman Spectrometer + Laser Features/Benefits:

  • Built-in 450 mW multimode laser
  • Fiber coupling to spectrometer (SMA) and laser (FC)
  • f/1.3 input to capture more light
  • High efficiency transmissive VPH gratings
  • >10x greater sensitivity & lower LOD
  • Low stray light and high signal to noise (SNR)
  • TEC cooling option for best SNR
  • Compact, robust & configurable
  • Excellent thermal stability

We believe you should have full control and maximum flexibility when configuring your WP 785 spectrometer + laser. That’s why we offer so many build-to-print options for range, resolution, detector cooling, and sample coupling – backing each with our advice and experience. Learn more about each below, or contact us to discuss the best options for your application.


SLIT WIDTH: Defining Resolution

Sensitivity and resolution are competing factors when choosing slit size. A larger slit allows more light to enter the spectrometer, increasing sensitivity for low-light applications such as fluorescence. Resolution improves, however, as slit width is reduced (though not always linearly). We offer 10, 25, and 50 μm slits for many of our spectrometers, and can advise on the best choice for your application. Due to the high sensitivity of our low f/# spectrometer designs, it is often possible to use a smaller slit width than would be required with a typical f/4 spectrometer, allowing you to achieve higher resolution.


DETECTOR COOLING: Controlling noise

Detector Cooling Options

We offer ambient, regulated, and TEC cooled detectors, allowing you to balance your required signal to noise ratio (SNR) and temperature stability with cost for the best possible value.

An uncooled detector is often adequate for many basic spectroscopy applications, but for lowest limit of detection and long term measurements, a thermoelectrically cooled (TEC) detector delivers unparalleled performance. Contact us to discuss the right choice for your application.

AMBIENT

REGULATED

TEC COOLED

Detector temperature ~ 25°C ~ 10°C ~ -15°C
Benefits Most cost effective option for quick measurements Fixed dark noise (better spectral reproducibility) Lowest dark noise option – highly consistent
Signal to noise Good SNR high throughput detector Improved SNR compared to ambient detector Best SNR for lowest limits of detection
Applications Best for teaching and lab environments Great for variable environments & handheld use Ideal for long integration time measurements

 

Spectrometer may be configured with your choice of slit size and sample coupling (fiber coupled or free space). Extended range models covering up to 3600 cm-1 are available upon request. Call us to discuss your custom OEM design!

  • f/#: 1.3
  • Wavenumber Range: 270 - 2000 cm-1 (all models)
  • Blocking/Sorting Filter: Options available, depending upon application
  • Resolution, 10 um slit: 4 cm-1
  • Resolution, 25 um slit: 6 cm-1
  • Resolution, 50 um slit: 10 cm-1
  • Fiber Port: SMA 905 (fiber coupled model) ; free space coupled model available (40 μm laser spot size)
  • Size: 16.5 x 16.2 x 8.2 cm

We offer ambient (A), regulated (R), and TEC cooled (C) detectorsfor the WP 785 Raman spectrometer + laser, allowing you to balance your desired signal to noise and temperature stability with cost for maximum value.

Learn more about our detector cooling options.

  • Detector Type and Model: Hamamatsu S16010-1006 (A) | S16011-1006 (R) | S10141-1007 (C)
  • Active Pixels: 1024 (all models)
  • Pixel Dimensions: 14 x 14 μm (A/R) | 12 x 12 μm (C)
  • Integration Period Range: 3 ms - 60 s (A/R) | 25 ms - 60 s (C)
  • Optional Regulated Detector: 10°C (R) | -15°C (C)
  • Regulated Detector Temperature Stability: ± 0.2°C (R) | ± 0.1°C (C)
  • System Operating Temperature Range: 0°C to 40°C, non-condensing
  • Data Interface: USB 2.0 Type B receptacle
  • Software: ENLIGHTEN™ operating software & drivers are included

Engineering Documents

  • ENG-0001 > Spectrometer USB Interface Specification
  • ENG-0034 > Feature Identification Device (FID) EEPROM Specification
  • ENG-0126 > Raman Laser Safety Interlock Behavior

Brochures & Product Sheets

Tech Notes

  • Why Wasatch for Spectroscopy? > See the data to validate our faster measurements, low LOD, high SNR, and excellent mechanical stability.
  • The Wasatch Advantage > Explore the optical design of our spectrometers and their performance benefits.
  • Wavelength Matters > Learn how to choose your ideal excitation wavelength based & minimize fluorescence background.
  • Raman Sample Coupling > Spectrometer or system? Probe or integrated laser? Data & tips to help you decide