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Refrigerated optical fiber spectrometer

Refrigerated optical fiber spectrometer

 

Product Introduction

The high-performance refrigerated miniature fiber optic spectrometer features a 1044 × 64 pixel back-illuminated linear CCD equipped with semiconductor cooling technology. The CCD operates at a stable temperature as low as –15 °C, significantly reducing thermal noise and achieving an excellent signal-to-noise ratio—approximately twice that of comparable products.
This advanced design ensures enhanced measurement reliability, with results remaining consistent regardless of ambient temperature fluctuations. A specially developed ultra-low noise CCD signal processing circuit delivers quantization noise below 3 counts, setting a new benchmark in the industry.
The spectrometer supports both SMA905 fiber optic input and free-space light input, enabling flexible integration into various optical setups. It outputs spectral data via USB 2.0 or UART interfaces and operates on a simple 5V DC power supply, making it highly convenient for system integration and field deployment.

Application Areas

  1. Raman Spectroscopy
    Ideal for molecular fingerprinting and material identification in pharmaceuticals, forensics, and environmental analysis.
  2. Trace and Rapid Spectrophotometry
    Enables fast, sensitive detection of low-concentration substances in chemical and biological applications.
  3. Reflectance, Transmittance, and Absorbance Detection
    Suitable for colorimetry, film thickness measurement, and material characterization.
  4. Spectral Analysis / Radiometric Analysis / Spectrophotometric Analysis
    Supports comprehensive optical property evaluation across UV, visible, and near-infrared ranges.
  5. UV, Visible, and Short-Wave Near-Infrared (SWIR) Wavelength Detection
    Covers a broad range from 180 nm to 1100 nm, ideal for multi-domain research and industrial inspection.

Product Features

• Feature One: Cooled Back-Illuminated CCD
Detector cooled to –15 °C to minimize dark current and thermal noise.
• Feature Two: High-Resolution Sensor Array
1044 × 64 pixel linear array for detailed spectral resolution.
• Feature Three: Ultra-Low Noise Signal Processing
Custom-designed circuitry achieves quantization noise <3 counts—industry-leading performance.
• Feature Four: High Spectral Resolution
Achieves 0.1–4 nm resolution, depending on slit width and spectral range.
• Feature Five: Broad Spectral Range
Covers 180–1100 nm, including UV, visible, and short-wave NIR wavelengths.
• Feature Six: Cross C-T Optical Path Design
Optical configuration enhances efficiency, stability, and compactness.
• Feature Seven: Flexible Integration Time
Supports integration times from 2 ms to 130 seconds, enabling adaptability to weak or strong signals.
• Feature Eight: Low-Voltage Power Supply
Operates on DC 5V ±10% @ <2.3A, compatible with USB-powered systems.
• Feature Nine: High-Precision ADC
Equipped with an 18-bit, 570 kHz A/D converter for accurate data acquisition.
• Feature Ten: Versatile Input Options
Accepts SMA905 fiber optic cable or free-space light input for maximum flexibility.
• Feature Eleven: Multiple Output Interfaces
Data output via USB 2.0 (High-Speed) or UART, supporting real-time monitoring and remote control.
• Feature Twelve: Programmable Expansion Interface
Includes a 20-pin dual-row programmable external expansion interface for custom system integration.

Product Parameters

 

Parameter Specification
Type Linear array back-illuminated CCD (cooled to –20 °C)
Detecting Spectral Range 180–1100 nm
Effective Pixels 1044 × 64
Pixel Size 24 µm × 24 µm
Full-Scale Range ~600 ke
Sensitivity 6.5 µV/e⁻
Dark Noise 8 e⁻
Wavelength Range 180–1100 nm
Optical Resolution 0.01–1.3 nm (depends on slit and spectral range)
Signal-to-Noise Ratio >1000:1
Dynamic Range 50,000:1
Operating Temperature –10 °C to +45 °C
Storage Temperature –20 °C to +70 °C
Optical Design F/4 Cross Asymmetric C-T Optical Path
Focal Length 98 mm (incidence), 107 mm (output)
Entrance Slit Width 5, 10, 25, 50, 100, 150, 200 µm (customizable)
Incident Light Interface SMA905 fiber optic or free space
Integration Time 8 ms – 30 min
Data Output Interface USB 2.0
ADC Bit Depth 18-bit (output 18-bit)
Power Supply DC 5V ±10%
Size 217 × 110 × 52 mm³
Weight 1.65 kg
Sealing Anti-sweat design