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UM2280 hand

We supply compact and ultra-compact spectrometers from leading Taiwanese manufacturer OtO Photonics together with their user-friendly "SpectraSmart" spectral measurement software and a range of lamp- and LED-based light sources.


OtO offer a range of compact Czerny-Turner (C-T) and folded C-T cavity spectrometers along with their unique microspectrometers based on innovative Micro Electro Mechanical Systems (MEMS) semiconductor grating-collimator chip technology:-


SmartEngine Series - world's highest selling and broadest range of 180-1100nm C-T spectrometers
HummingBird Series - extra-compact folded C-T cavity 180-1100nm spectrometers
PocketHawk Series - low cost 330-1050nm extra-compact folded C-T cavity spectrometer
EagleEye Series  - low noise, high SNR TE-cooled 180-1100nm C-T spectrometers
UltraMicro Series - ultracompact 330-850nm MEMS grating-collimator microspectrometers
SideWinder Series - compact 900-2500nm C-T spectrometers with shutter and cooled sensor options 
PocketHawk-NIR Series - low cost 900-1700nm extra-compact folded C-T cavity spectrometer
RedSparrow Series - ultracompact 950-1700nm MEMS grating-collimator microspectrometers
DualSpectrometer Series - combine SmartEngine and SideWinder for full 180nm to 1700nm spectrum
AirAlliance Series - wireless C-T spectrometers based on SmartEngine, EagleEye and SideWinder
















Classic C-T spectrometers offer a number of key benefits:-


C T Schematic





  • High optical resolution


  • High sensitivity


  • Low stray light


  • Fast spectral response





MEMS Schematic

OtO's MEMS-based microspectrometers replace the "collimator-plane grating-focusing mirror" optical structure used in traditional Czerny-Turner spectrometers with a "non-spherical, mass-producible" micro-sized component which combines grating and focusing functions. The microchip concave grating technology leverages patented algorithms to calculate curvature and ray-tracing to eliminate aberrations and achieve high resolution.


Advantages of OtO's MEMS-based UltraMicro (330-850nm) and RedSparrow (900-1700nm) microspectrometers include:-


  • Small size and low power consumption


  • Highly resistant to vibration


  • Easy integration into OEM systems


  • High volume production with low cost


When combined with OtO’s high-precision optomechanical designs and SpectraSmart software the MEMS grating technology enables microspectrometers which push the performance envelope to deliver the benefits of high accuracy, ultra-compactness, shock resistance, weather resistance and low cost.


Please use the Quick Links to the right of this page to view OtO's range or Contact Us if you would like to discuss your requirement for compact spectrometers covering the range 180nm to 2500nm.