NWSPEC
SR68 Cooled InGaAs NIR Spectrometer | 900–2500 nm
SR68 Cooled InGaAs NIR Spectrometer | 900–2500 nm
SR68 InGaAs NIR Spectrometer
Application Order Guide
2-stage cooled InGaAs detector for near-infrared spectroscopy. 900-2500nm coverage for moisture analysis, agriculture, chemical concentration, and NIR applications. Multiple detector options available.
SR68 Key Advantages
NIR Coverage 900-2500nm with InGaAs detector. Multiple pixel options: 256, 512, 1024.
2-Stage Cooling Deep cooling for InGaAs. Low noise: 10.5uV/e-. High SNR: 3500:1. Dynamic range: 10000:1.
Agriculture Ready Optimized for moisture, fruit, crop, and food analysis in the NIR region.
Industrial Online Designed for high-speed online monitoring in production environments.
1
Select Application Type
Match your measurement need to the recommended system configuration
Moisture / Water Analysis
NIR absorption measurement for moisture content in solids, powders, and liquids. Critical for food, pharma, and chemical industries.
1450nm and 1940nm water bands Applications: Grain, powders, pharmaceuticals, chemicals Recommended: NIR-512 + Tungsten + Reflection Probe + Sampling Fixture
Fruit / Produce Detection
Non-destructive NIR analysis for fruit ripeness, sugar content (Brix), firmness, and internal quality.
NIR reflectance for internal composition Applications: Apples, citrus, stone fruits, berries Recommended: NIR-256 + Tungsten + Reflection Probe + Fruit Fixture
Crop / Agriculture Analysis
NIR spectroscopy for crop quality, protein content, oil content, and grain grading.
High-speed for harvest and processing lines Applications: Wheat, corn, soybeans, rice Recommended: NIR-512 + Tungsten + Reflection Probe + Software Database
Telecom Laser Wavelength
Precision wavelength measurement for telecom lasers, DWDM channels, and optical communication devices.
High resolution for C+L band analysis Applications: Telecom R&D, laser manufacturing, fiber optics Recommended: NIR-1024 + Telecom Laser + Integrating Sphere + Advanced Software
Online Chemical Concentration
Real-time NIR monitoring of chemical composition and concentration in process streams and reactors.
Continuous online measurement Applications: Chemical production, petrochemical, pharmaceutical synthesis Recommended: NIR-512 + Tungsten + Dip Probe + Advanced Software
Raman Spectroscopy (NIR)
NIR Raman excitation for fluorescence-free Raman analysis of complex biological and pharmaceutical samples.
1064nm excitation avoids fluorescence Applications: Pharmaceuticals, biological tissue, polymers Recommended: NIR-1024 + 1064nm Raman Laser + Raman Probe + Advanced Software
Life Science / Biology
NIR spectroscopy for tissue analysis, blood oxygenation, and biological composition studies.
NIR tissue penetration for non-invasive analysis Applications: Tissue oximetry, blood analysis, medical research Recommended: NIR-512 + Tungsten + Reflection Probe + Advanced Software
Scientific Research
General NIR research platform for materials science, chemistry, and physics applications.
Wide dynamic range: 10000:1 Applications: Materials characterization, chemical research Recommended: NIR-1024 + Tungsten + Cuvette Holder + Advanced Software
Environmental Monitoring
NIR analysis for soil composition, water quality, and environmental pollutant detection.
Soil organic matter and moisture analysis Applications: Soil science, water monitoring, ecology Recommended: NIR-512 + Tungsten + Reflection Probe + Advanced Software
Infrared Source Detection
Characterization of IR LEDs, lasers, and thermal sources for R&D and manufacturing QC.
Spectral output measurement of IR sources Applications: IR LED manufacturing, thermal imaging, night vision Recommended: NIR-1024 + IR Source Under Test + Integrating Sphere + Advanced Software
2
Select Spectrometer Core
Detector type, pixel count, and wavelength range
| Configuration | Specifications | Code | Best For |
|---|---|---|---|
| NIR-256 (900-1700nm) | 256-pixel InGaAs. 2-stage cooled. Resolution ~6.5nm FWHM. Integration: 0.4ms-1000ms. SNR: 3500:1. Dynamic range: 10000:1. Sensitivity: 10.5uV/e-. | N25 | Moisture, fruit, fast online monitoring |
| NIR-512 (900-1700nm) | 512-pixel InGaAs. 2-stage cooled. Resolution ~3.2nm FWHM. Integration: 0.4ms-1000ms. SNR: 3500:1. Dynamic range: 10000:1. Balanced resolution and speed. | N51 | Crop analysis, chemical concentration, general NIR |
| NIR-1024 (900-1700nm) | 1024-pixel InGaAs. 2-stage cooled. Resolution ~1.6nm FWHM. Integration: 0.4ms-1000ms. SNR: 3500:1. Dynamic range: 10000:1. Highest resolution. | N10 | Telecom, Raman, research, high-precision |
| NIR-Extended (900-2500nm) | Extended InGaAs detector. 2-stage cooled. Coverage to 2500nm for broader NIR analysis. Resolution varies by pixel count. | NEX | Extended NIR applications, specialized research |
Optical Platform Note All configurations use F/4 symmetric crossed Czerny-Turner optical path. Focal length options: 100mm or 110mm. Standard slit: 200μm (customizable). Fiber interface: NIR SMA905, 0.22NA. Size: 182×110×50mm, 1500g. Power: 450mA @ 5V DC + 4A @ 5V DC for 2-stage cooling.
3
Select Light Source
Illumination matched to your wavelength range and application
| Source | Specifications | Code | Best For |
|---|---|---|---|
| Tungsten-Halogen (Vis-NIR) | Stable output: 350-2500nm. High output in NIR region. Stable thermal output for reflectance and transmission. | THL | Moisture, agriculture, general NIR reflectance |
| NIR LED Source | Specific NIR wavelengths for targeted analysis. Low power consumption. Fast modulation. | NLE | Specific band analysis, portable systems |
| 1064nm Raman Laser | High-power 1064nm laser for NIR Raman excitation. Fluorescence-free Raman analysis. | R10 | NIR Raman, biological, pharmaceutical |
| Telecom Laser Test Source | Calibrated telecom laser for instrument verification and wavelength calibration in C+L band. | TLS | Telecom R&D, wavelength calibration |
4
Select Fiber & Sampling Accessories
Probes, optics, and interfaces for your sample type
NIR Fiber Bundle
Low-OH fiber optic cable optimized for NIR transmission (900-2500nm).
Core diameter: 400μm, 600μm, or 1000μm Length: 1m, 2m, or custom Connector: NIR SMA905 Code: FIB
NIR Reflection Probe
Y-type probe for diffuse NIR reflectance measurement on solids, powders, and agricultural samples.
6-around-1 fiber configuration with NIR fibers Optional focusing lens tip Best for: Grain, fruit, powders, soil Code: RFP
Fruit Sampling Fixture
Non-destructive holder for consistent fruit positioning during NIR reflectance measurement.
Adjustable for various fruit sizes Consistent probe-to-sample distance Best for: Apples, citrus, stone fruits Code: FSF
Grain / Powder Sampling Cup
Standardized cup for consistent grain and powder sample presentation during NIR analysis.
Volume: Standard grain analysis volume Consistent packing density Best for: Wheat, corn, soybeans, powders Code: GSC
NIR Cuvette Holder
Cuvette holder for liquid NIR transmission and absorption measurements.
Pathlength: 2mm, 5mm, or 10mm NIR cuvettes Interface: Fiber-coupled Best for: Liquid analysis, chemical concentration Code: CUV
NIR Raman Probe
Specialized probe for 1064nm Raman with integrated laser delivery and signal collection.
Filter: 1064nm rejection + Raman signal bandpass Working distance: Adjustable Best for: NIR Raman, biological, pharmaceutical Code: RMP
NIR Integrating Sphere
Uniform light collection for NIR total flux measurement and diffuse reflectance standards.
Diameter: 50mm or 100mm Coating: Gold or diffuse gold for NIR Best for: IR source testing, reflectance standards Code: ISP
Transmission Test Bracket
Precision fixture for NIR transmission measurement of filters, films, and optical components.
Adjustable sample position Compatible with solid and film samples Best for: NIR filter testing, film characterization Code: TTB
Immersion / Dip Probe
Submersible NIR probe for direct liquid analysis and online process monitoring.
Pathlength: 2mm, 5mm, or 10mm Material: Stainless steel with NIR windows Best for: Chemical process, online monitoring Code: DIP
Telecom Fiber Adapter
Specialized adapter for connecting telecom fibers (SMF-28) to the spectrometer.
Connector: FC/PC, FC/APC, SC, or LC Low insertion loss Best for: Telecom testing, DWDM analysis Code: TFA
5
Select Software Package
Control and analysis software level
| Package | Features | Code | Best For |
|---|---|---|---|
| Basic Control | Real-time spectral display, data acquisition, basic math, export to CSV/TXT/SPC. InGaAs temperature monitoring and cooling control. | BAS | Standard laboratory use, teaching |
| Advanced Analysis | PLS chemometrics for moisture, protein, oil prediction. Brix calibration for fruit. Telecom wavelength analysis. Material spectral library. Report generation. Software database for agriculture. | ADV | Agriculture, moisture, chemical concentration, telecom |
| SDK / API | Full hardware control API with InGaAs cooling control. Cross-platform: C++, C#, Python, LabVIEW. Temperature control API. Example code included. OEM licensing. | SDK | System integrators, OEM partners, online monitoring systems |
Operating System Support Software compatible with Windows, Android, Linux, and Wince. Communication: USB 2.0. Extended 16-pin port with external trigger. InGaAs detector requires 4A @ 5V DC cooling power.
6
Model Naming Reference
How to construct your complete order code
| Position | Component | Available Codes |
|---|---|---|
| Base | Platform | SR68 |
| 1 | Application Type | MOI / FRT / CRP / TEL / CHM / RAM / BIO / SCI / ENV / IRS |
| 2 | Spectrometer | N25 / N51 / N10 / NEX |
| 3 | Light Source | THL / NLE / R10 / TLS |
| 4 | Fiber / Accessory | FIB / RFP / FSF / GSC / CUV / RMP / ISP / TTB / DIP / TFA |
| 5 | Software | BAS / ADV / SDK |
EXAMPLE CONFIGURATION
SR68-MOI-N51-THL-RFP-GSC-ADV
Moisture analysis — NIR-512 spectrometer — Tungsten source — Reflection Probe + Grain Sampling Cup — Advanced software with PLS calibration
EXAMPLE CONFIGURATION
SR68-TEL-N10-TLS-TFA-ADV
Telecom laser wavelength — NIR-1024 spectrometer — Telecom Laser Source — Telecom Fiber Adapter — Advanced software with wavelength analysis
EXAMPLE CONFIGURATION
SR68-RAM-N10-R10-RMP-ADV
NIR Raman spectroscopy — NIR-1024 spectrometer — 1064nm Raman Laser — NIR Raman Probe — Advanced software with Raman database
Lead Time Standard configurations: 2 weeks from order confirmation. InGaAs detector systems require additional thermal testing — confirm with sales when ordering.
Customization & OEM Services Special wavelength ranges, detector configurations, mechanical integrations, and private labeling are available upon request.
Request a Quotation
Provide your configuration code or application requirements. Our team will confirm specifications, pricing, and lead time (typically 2 weeks) within 24 hours.
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Since 1993
30+ Years of Instrument Expertise
Reliable Manufacturer
Manufacturing & Services
Ph.D. Founded
Dr. Pingxin Wang, UT Austin
Advantages
Price · Service · Speed · Technical · Data
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In-Stock Orders Ship Same Day
Frequently Asked Questions
How can I contact you?
Feel free to call us T+86 189-6516-4839
or email sales@nwspec.com to:
• Place an order
• Ask for a quote
• Or if you have any other questions
You will always get a live person here at NWSPEC; never an automated system!
We are open from 6:00AM - 7:00PM Eastern Time, Monday - Friday.
Where can I find application notes?
If you have any questions regarding the application notes, or can't find the one you are looking for, please contact Sales at sales@nwspec.com
Do you have instructional manuals for your instruments to download?
Yes, we have instructional manuals for our instruments. They can be found on https://nwspec.com/pages/resource .
If you don't see the one you are looking for, please contact: sales@nwspec.com