Modular Spectrometer Accessories

The CLA-SMA collimating lens is used to convert divergent rays of light into parallel rays.  The lens is fabricated from fused silica and can be used over a broad spectral range (UV/Vis/NIR). The CLA-SMA attaches to an SMA 905 connector of a fiber optic patch cord and fiber assemblies. When used with a fiber cord attached to a light source, the CLA-SMA produces a parallel (collimated) beam of light. When the fiber cord is attached to a spectrometer, the CLA-SMA provides a narrow acceptance angle and narrow field-of-view.

Applications:

• Irradiance Calibration
• Reflectance
• Absorption

The SRR spectral reflectance reference is used to measure a reference spectrum in order to calibrate your setup for reflectance measurements.  This reference is possible because it is a “pure” white material, reflecting nearly 100% of light across a broad spectral range.

The SRR is comprised of PTFE contained in a protective circular metal housing. It has a diffuse reflectance of 99% between 400nm and 800nm, >98% between 300nm and 1800nm (UV-Vis-NIR region), and >92% between 250nm and 2500nm. The SRR is available in two diameters, 1.25” & 2.0”. Each standard is available with an optional diffuse reflectance data certificate from 250nm – 2500nm, at 50nm increments.

Applications:

Ideal for Calibration of:

• Remote Sensing Instruments
• Integrating Sphere Systems
• Photographic Equipment
• Optical Equipment
• Reflectometers
• Densitometers

The BAT100 manual attenuator is used to attenuate bright sources in order to prevent the signal from saturating the spectrometer.  This is achieved by manually adjusting a thumbscrew positioned directly in front of the face of the fiber.  The BAT100 consists of standard SMA 905 connectors, allowing you to connect a fiber on one end, and either a spectrometer or a light source the other end.

Featuring a diffuser made from PTFE, the FRC100 can be used from the UV to the NIR range. When compared to integrating spheres, the FRC100 provides greater optical efficiency and improved signal sensitivity over a broad spectral range. A 600mm fiber patch cord with metal sheathing is provided which connects to the SMA 905 connector on the FRC100 and to a spectrometer on the other end. A working setup would consist of purchasing an FRC100, spectrometer, and irradiance calibration.

Applications:

• Suitable Input Optic for LED and Lamp Characterizations
• Illumination and Color Rendering from Lighting
• Solar Irradiance Monitoring (Outdoors)
• Solar Simulator Validation (Indoors)
• UV Curing System QC
• Color Measurement
• Spectroradiometry

Features

• Can be Calibrated for Spectral Irradiance
• 220 – 2500nm Spectral Transmission
• Low Profile, Convenient 90º Viewing
• SMA 905 Fiber Connector

The FDP fiber optic dip probe is fully immersible, allowing for real-time kinetic data to be collected. The design of a fiber optic dip probe is very similar to that of a reflection probe, though special effort is taken to guarantee that it is liquid tight and inert. The key functional difference is the presence of a cavity which fills with the liquid sample. This cavity reflects light back through the sample and into the collection optical fiber in a setup commonly referred to as a transflectance.

The FRP fiber reflectance probe combines optical fibers at one end for sample measurement and is bundle bifurcated into two channels at the other end for connection to a light source and spectrometer.

A fiber optic reflectance probe can measure either diffuse or specular reflectance from surfaces. When positioned at an angle to the surface normal, it measures diffuse reflectance. When positioned normal to the surface (0° angle of incidence) it measures specular reflectance.

All standard FRP reflectance probes consist of a bundle of 7 optical fibers in a stainless steel ferrule (illustrated as Terminal C). Assemblies are available with UV or NIR grade fused silica optical fibers with standard fiber core diameters of 200μm.

The light source and spectrometer channels feature standard SMA 905 connectors. The fiber configuration for these channels consists of two options. For use with B&W Tek’s CCD spectrometers that have a 200mm pixel height, a single fiber channel (Terminal B) serves as the spectrometer channel. A round bundle of six fibers serves as the light source channel. For all other B&W Tek spectrometers with larger pixel height, a linear bundle of six fibers is best used as the spectrometer channel, which will align to a spectrometer entrance slit.

Applications:

• Diffuse Reflectance
• Specular Reflectance

Features:

• Stacked Fiber Input

The TFA trifurcated fiber optic bundle series combines optical fibers at a common end with the fiber optic bundle trifurcated into three separate channels, terminated with standard SMA 905 connectors.

TFA bundles are comprised of one common end with seven 400µm NIR optical fibers in a “6 around 1” configuration, terminated with a probe tip.  Through one channel (normally connected to a NIR spectrometer) three of the seven optical fibers are terminated in a slit configuration.  Through the middle channel (normally connected to a tungsten halogen light source) three more of the seven optical fibers are terminated in a round configuration.  Through the last channel (normally connected to a visible spectrometer) the last optical fiber is terminated in a SMA connector.

Applications:

• Broadband Optical Spectroscopy
• Spectral Irradiance
• Reflectance

A bifurcated fiber assembly is the most common example of a fiber optic bundle and is used to either split a signal or combine signals.  The BFA series combines optical fibers at a common end with the fiber optic bundle bifurcated into two separate channels, terminated with standard SMA 905 connectors.  Assemblies are available with UV or NIR grade fused silica optical fibers with fiber core diameters of either 200µm or 400µm.

The BRS is a customized bifurcated fiber optic assembly featuring broadband-grade fiber optics at the common end with three fibers evenly distributed around a center fiber.  The bifurcated ends have a single optical fiber in one terminal and three fibers in a linear format in the other terminal which align to a spectrometer entrance slit. BRS fiber assemblies are offered for OEM customers only.

Some of the most common applications for bifurcated fiber optic bundles are those that require you to direct light from a sample into two different spectrometers. This is generally used to extend the spectral coverage of the measurement, either to maintain higher resolution, or to cover an extended range. Conversely, a bifurcated fiber assembly can be used to direct light into a spectrometer and measure the light reflected off of the sample.

Applications:

• Broadband Optical Spectroscopy
• Spectral Irradiance
• Reflectance

The FRS round-to-slit bundle is a fiber optic assembly with a round bundle of six fibers to collect light on one end of the fiber.  The other end of the fiber converges in a stacked linear configuration which will align to the spectrometer’s entrance slit.  FRS round-to-slit bundles are available with UV or NIR grade fused silica optical fibers with standard fiber core diameters of 100 µm.

This configuration allows for much higher throughput into your spectrometer, as opposed to simply using a larger core fiber. When a large core fiber is placed in front of the entrance slit of a spectrometer, the majority of the light is vinyetted and doesn’t make it into the spectrometer. By contrast, when the smaller fibers are stacked along the entrance slit, significantly more light enters into the spectrometer. This allows for much higher sensitivity and signal to noise, while maintaining resolution, since the slit can remain relatively narrow.

It is important to note that proper alignment of the stacked fiber to the spectrometer’s slit is crucial for the fiber to work correctly and must be done every time the fiber is connected.

Applications:

• NIR Spectroscopy
• Fluorescence
• Reflectance

Features

• Improved Signal Response
• Unique Fiber Position

The fiber patch cords are fiber optic cables terminated with SMA905 connectors on both ends (FC connectors available upon request). These patch cords connect with ease to our spectrometers, light sources and sampling accessories.  They are available in UV, NIR, and MIR grade fused silica optical fibers with various core diameters. Fiber core sizes range from 50mm to 1000mm with a standard length of 1.5 meters, custom lengths available upon request.

For applications in the deep UV region (190nm-325nm), effects of high levels of UV radiation on the transmission of a silica core optical fiber must be considered.  Solarization changes depend on the type of fiber used as well as the intensity and spectral output of the UV source.  The deep UV enhanced fiber patch cord uses hydrogen loaded high OH- silica to provide the best resistance to solarization.

UV grade fiber patch cords use a low OH- content silica core for a spectral range of 350nm to 2400nm.

Applications:

• General Spectroscopy
• Spectrophotometry
• Transmission
• Fluorescence
• Absorption

Features

• Multimode Step Index Fiber
• Broad Temperature Range
• Excellent Concentricity
• Radiation Resistant
• Vacuum Compatibl

The BFH105 inline filter holder is designed for fiber coupling and ease of handling. It can hold up to three standard filters (1inch in diameter, 5mm thick - not included). The BFH105 has two SMA 905 fiber connections and can be used with any fiber coupled spectrometer and/or any light source.

Applications:

• Optical Filter Characterization
• Wavelength Filtering

The TSF adjustable sampling fixture allows you to adjust the path-length by manually adjusting the mounted collimating lens on one side of the sample, and/or the integrating sphere on the other side.  This allows you to measure translucence using large and/or awkwardly shaped samples.

The ACF adjustable cuvette sampling fixture allows you to adjust the path-length through your sample, allowing for a wide range of cuvettes sizes to be used.  Additionally, the centerpiece is removable, allowing you to measure transmission using large and/or awkwardly shaped samples.

The BCH cuvette sample holder series is spring-loaded and holds a standard 12.5 x 12.5mm (OD) (1cm path length) cuvette for liquid or powder sample transmittance and absorbance with proper spectrometer and light source setup. The cuvette sample holder provides 2 or 3 (optional) SMA 905 fiber couplers with collimated optics and is ideal for use with any standard fiber coupled spectrometer together with any fiber coupled light source. The standard configuration (BCH100A) comes with two ports (straight through).  A third port configuration (BCH103A) is also available for right angle (with respect to the illuminations) detections for fluorescence applications.

Applications:

• Absorbance
• Transmittance
• Fluorescence

The R1010 direct contact attachment for reflectance probe regulates the distance and the angle between the probe and your sample so that you get a consistent diffuse reflectance measurement every time.  This is ideal for measuring various points on large samples due to its small size and ease of use. Probe not included.

The R045 reflectance sample holder enables you to perform diffuse reflection measurements without the need for a reflectance probe.  Two fiber optic cables can be connected to the SMA905 ports which are placed at 0° and 45° angles from the sample, which sits directly on top of the holder.  By illuminating the sample through one fiber and collecting the reflected spectrum from the other, you can measure diffuse reflection with ease.

The FRPH fiber reflectance probe holder is designed to hold a reflectance probe at either a 0° or 45° angle for easy alignment when performing reflectance based spectroscopy.  For best results, it is important to have accurate control over positioning and distance from your sample, as well as degree of incidence.

Applications:

• Optical Property Characterization
• Specular Reflectance
• Diffuse Reflectance
• Color Measurement
• NIR Spectroscopy

The BIP2.0 compact, fiber coupled integrating sphere with integrated light source is designed for the measurement of diffuse reflectance when used with a fiber optic spectrometer.  It uses “d/8” geometry, which is required for reflectance measurement of diffuse surfaces, especially when spectral reflectance is used for the color measurement of materials.

The BIP2.0 includes a light source housing that contains a long-life 20W Tungsten Halogen lamp which emits over a broad spectrum (UV-Vis-NIR). A remote control port is provided on the rear for versatile remote On/Off modulation, operating current monitoring, and external operating current control. The housing includes a miniature fan and cooling fins that provide thermal stability of the light source, and a slow ramp start is built directly into the source to ensure stability and long-life operation.

The two inch diameter integrating sphere is machined from PTFE which is highly reflective (>97%) over a broad spectral range of 350 to > 2600nm.  Two SMA 905 fiber optic connectors are positioned diametrically opposite the sample port to allow the spectrometer to view diffusely illuminated samples at an angle of 8º to normal. A lens inside the SMA905 connector restricts the field of view of the optical fiber to the measurement port.  The BIP2.0, when operated with the remaining SMA905 connector open, measures purely diffuse reflectance because the specular light escapes the integrating sphere through the open port.  When the remaining SMA905 connector port is plugged with an optional PTFE plug (BIP2.0-P), the BIP2.0 measures both diffuse and specular reflectance.

Applications

• Specular Included / Excluded Diffused Reflectance

The BIS1.5A compact fiber coupled integrating sphere is machined from PTFE and is the ideal solution for the measurement of diffuse light.  It has a diffuse reflectance of 99% between 400nm and 800nm, >98% between 300nm and 1800nm (UV-Vis-NIR region), and >92% between 250nm and 2500nm.

Applications

• Laser and LED Characterization
• Diffused Transmittance
• Spectral Irradiance

Features/ Benefits

• High Reflectivity > 97% over most of 250-2500 nm
• Compact Size
• Fiber Coupled

The BDS130A is a turnkey fiber coupled UV/Vis/NIR light source with a spectral output of 190 to > 2500nm. The UV/Vis lamp is a 30W Deuterium lamp providing the advantage of low heat generation and efficient power conversion. A Tungsten Halogen lamp shares the optical path with the Deuterium lamp and provides Vis/NIR emission. The UV/Vis and Vis/NIR light sources can be individually turned on and off. An electronic shutter is included to control light output using another switch on the front panel. The BDS130A features an SMA 905 connector for fiber optic light coupling with no fiber alignment needed, making it ideal for spectroscopic applications.

Applications:

• Transmission Experiments
• Absorption Experiments

Features:

• Spectral Range 190 to > 2500nm
• TTL/Manual Shutter Control
• UV/Vis/NIR Single Path
• TTL Lamp Control
• Fiber Coupled
• High Stability
• Long Life
• Compact

The SCL101 spectral calibration source comes in 6 lamp models: Argon (Ar), Krypton (Kr), Mercury (Hg), Mercury/Argon (Hg/Ar), Neon (Ne), and Xenon (Xe). These sources can be used for wavelength calibration of monochromators, spectrometers and spectroradiometers. By exciting these various gases, they will produce narrow intense lines of the corresponding element(s). This light source comes with a 9V DC power supply and features an SMA905 connector for fiber optic light coupling with no need for fiber alignment.

Applications

• Calibration of Spectroscopic Instrumentation
• Resolution Testing / Verification

Features

• Compact & Lightweight
• Portable Battery Operation
• Fiber Coupled
• Various Lamp Selections UV - NIR
• Excellent Stability

The BDS100 is a turnkey fiber coupled UV/Vis/NIR light source providing spectral output from 200 to >1100nm. The 3W electrode-less RF induced Deuterium lamp provides UV emission and offers the advantage of low heat generation and low power consumption. The 3W Tungsten (W) Halogen lamp shares the optical path with the Deuterium (D2) lamp and provides Vis/NIR emission. The BDS100 features a safety shutter and individual On/Off controls for both the Deuterium and Tungsten lamps as well as a SMA 905 connector for fiber optic light coupling. It also includes a DC power supply. The BDS100 is ideal for spectroscopic applications because no fiber alignment is needed.

Applications:

• Transmission Experiments
• Absorption Experiments

Features:

• UV/Vis/NIR Single Path
• Shutter Control
• Fiber Coupled
• High Stability
• Long Life
• Compact

The BPS2.0 is a low-cost high-performance constant current light source which uses a replaceable Tungsten Halogen bulb rated for 2000 hours. This device uses a constant current setting which provides precision current control allowing for stable performance to be achieved.

A remote control port is provided on the rear for versatile remote On / Off modulation, operating current monitoring, and external operating current control. Slow ramp start is built into the source to ensure stability and long-life operation. The BPS2.0 features a SMA 905 connector for fiber coupling. No fiber alignment is necessary which makes the BPS 2.0 ideal for visible and near IR spectroscopic applications.

Features

• Spectral Range 350 to > 2600nm
• Compact and Light Weight
• 2900K Color Temperature
• ~2,000 Hour Rating
• Constant Current

The BPS101 is a fiber coupled constant current Tungsten light source which provides precision current control and stable performance.  It features an SMA 905 connector for fiber coupling without the need for additional fiber alignment.  This Tungsten Halogen light source has a spectral output of 350nm to > 2600nm, making it ideal for visible and NIR spectroscopic applications.

The BPS101 includes a user replaceable 5W input power bulb with a ~10,000 hour lifetime and a color temperature of 2800K. A remote control port provides On/Off modulation, operating current monitoring, and external operating current control.  A slow ramp start is also built directly into the source to ensure stability and long-life operation.

Applications:

• Transmission
• Absorption
• Reflectance

Features

• Spectral Range 350 to > 2600nm
• Compact and Light Weight
• 2800 K Color Temperature
• ~10,000 Hour Rating
• Constant Current