Mightex – Optical Spectrometers
Mightex Systems, with operations based in Toronto, Canada, and in the Silicon Valley, California, is a leading supplier of photonic products and services for a broad spectrum of applications including industrial imaging, bio-photonic solutions, LED illumination, machine vision, life & health sciences, and industrial test & measurement etc.
USB2.0 CCD Spectrometers – High-Resolution High-Stability CCD Spectrometers (UV, VIS and NIR)
- Superb temperature & long-term stability
- Interchangeable slit by customers
- Fiber input with SMA connector
- UV/VIS/NIR (200~1050nm), sub-nm resolution
- External trigger and GPIO’s
- Full-featured SDK for OEM
- USB2.0 for both data and power, no external power required
- LabView support
- Low-level USB protocol for embedded system
Compact CCD spectrometers are widely used in process control, environment monitoring, and scientific research applications. Mightex HRS series compact CCD spectrometers features a high-resolution 100mm Czerny-Turner optical platform coupled with a Toshiba 3648-element CCD array. The optimized optical path yields both high spectral resolution and high light collection efficiency.
Wavelength and amplitude stability is often a critical requirement for many spectrometer applications. All optical components in the HRS series spectrometers are mounted directly on a single-piece base without using screws. A box enclosure structure further increases stiffness of the base. The proprietary mounting method ensures high stability over time and temperature change.
The spectrometer takes input through a SMA connector port. Usually a fiber patch cord is used to transmit light into the spectrometer. However it’s also possible to send the input light directly into the spectrometer through the input slit. Input ports are interchangeable so that ports with different slit size (or without slit) can be used. Note that wavelength calibration is necessary after changing the input port.
A 16-bit DAC is used to convert the analog signal from the CCD array into a digital stream. The electronics hardware also includes trigger input and four programmable digital I/Os for interfacing with other equipment such as a light source. The spectrometer is controlled through a USB2.0 interface which also supplies all the electric power needed to operate the spectrometer.
Standard software package includes a full-featured PC software as well as a software development kit (SDK) for further software development. Low level USB protocol is also provided in the software package, which supports embedded system based applications.
Multi-Channel CCD Spectrometers
- Multiple (6) spectral channels in one compact package
- No moving parts
- High spectral resolution
- High throughput
- USB2.0 interface
- No external power required
- Trigger input
- Full-featured SDK
- GPIOs for interfacing with other equipment
Multi-channel spectrometers are used to monitor or measure multiple samples or sources simultaneously. Traditionally, multi-channel imaging spectrometers have been expensive and bulky instruments used only in demanding laboratory and industrial applications. Mightex has leveraged the state-of-the-art optics and CCD cameras to bring to the market a compact and low-cost multi-channel fiber spectrometer that features high spectral resolution and high light throughput.
At the heart of Mightex multi-channel spectrometers is a high-throughput flat-field imaging spectrograph. Multiple input fibers, each represents an independent signal channel, are aligned along the input slit of the imaging spectrograph. Spectrum of each channel is dispersed by a high-efficiency diffraction grating and then imaged on to a 2D CCD sensor. Light from each channel occupies different rows on the CCD sensor. All channels are exposed simultaneously, then rows associated with each channel are binned together to produce a spectrum for the channel. Fiber channels are spaced out properly to essentially eliminate crosstalk between adjacent channels.
The standard CCD camera features a ½” 1.3MP Sony ICX205 imager with a 12-bit ADC. Exposure time (integrating time) can be varied between 50μs and 200s. The electronics hardware also includes trigger input and four programmable digital I/Os for interfacing with other equipment such as a light source. The spectrometer is controlled through a USB2.0 interface which also supplies all the electric power needed to operate the spectrometer. Mightex also integrates other cameras to build custom multi-channel spectrometers.
Input ends of the fibers are connectorized with SMA905 connectors. Sleeves are available to connect the fibers to other SMA connectors. Standard software package includes a full-featured multi-channel spectrometer PC software as well as a software development kit (SDK) for further software development. The software also supports radiometric calibration and photometric calculations.
Full-spectrum LED Light Sources for Spectrometers
- LED-based light source, with lifetime >25,000 hours and low power consumption.
- Significantly higher intensity at blue/UV end compared to halogen light sources.
- Intensity can be adjusted without changing output spectrum.
- Output spectrum can be tailored by users to suit different applications.
- Available manual and computer-controlled drivers.