OtO Photonics' HummingBird (HB) series are folded-cavity Czerny-Turner spectrometers offering the performance benefits of classic C-T cavity designs in a significantly more compact package.
Despite its compact form-factor HummingBird sacrifices none of the performance of OtO's SmartEngine spectrometers - the optical bench provides excellent rigidity, ensuring a platform with industry-leading thermal, humidity, shock and vibration stability along with high optical resolution, high sensitivity, low stray light, and fast response.
Hummingbird is offered with a choice of three high performance 2048-pixel sensors in three package formats - "standard" (HB-2xx0), "External Motherboard" (HB-2xx4) and "No-SMA-905" (HB2xx4L).
| Description | HB2030 HB2034 HB2034L |
HB2050 HB2054 HB2054L |
HB2090 HB2094 HB2094L |
| 2048 Pixel Sensor | Hamamatsu S11639 Fast-exposure CMOS |
Hamamatsu S11510 Back-thinned NIR-enhanced CCD |
Hamamatsu S11071 Back-thinned Fast exposure CCD |
| Dynamic Range | 3120:1 | 4370:1 | 2920:1 |
| SNR | 330 | 500 | 500 |
| Optical Parameters | f/#: 4.5 NA: 0.1 Focal Length (R1-R2): 39-44 |
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| Dimensions | HB20x0 (Standard): 83 x 79 x 34.5 mm HB20x4 (External M/B): 83 x 79 x 26.75 mm HB20x4L (Ext'l M/B, no SMA-905): 83 x 75.5 x 26.75 mm |
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OtO have designed HummingBird to offer the same configurability of grating and slit as their SmartEngine spectrometers enabling optimisation of spectral bandwidth, resolution and sensitivity. OtO's 5 standard operating ranges for HummingBird are:-
| Model | Grating Groove Density |
Grating Blaze Wavelength |
Factory Set Spectral Range |
Resolution (nm) | |||||
| 10µm | 25µm | 50µm | 100µm | 200µm | 300µm | ||||
| DUVN | 500/mm | 330nm | 180-850nm | 1.0 | 1.4 | 2.1 | 4.4 | 8.4 | 12 |
| FUVN | 300/mm | 300nm | 180-1100nm | 1.7 | 2.3 | 3.4 | 7.0 | 13.5 | ~ |
| VNIR | 600/mm | 500nm | 350-1020nm | 0.9 | 1.2 | 1.9 | 3.3 | 6.7 | 10 |
| NIR1 | 1200/mm | 850nm | 790-1010nm | 0.4 | 0.6 | 0.9 | 1.7 | 3.4 | ~ |
| NIR4 | 1000/mm | 900nm | 790-1090nm | 0.6 | 0.7 | 1.1 | 1.9 | 4.0 | 6.5 |
In addition to these standard operating ranges customers can specify their own operating "bandwidth" within the "Factory Selectable Band" specified in the table below. For example, the standard 1200/850 grating has a 220nm bandwidth which can be factory set within a 180-1010nm range, i.e. 180-400nm, 300-550nm, 790-1010nm etc. For each grating we show the achievable Resolution over the stated Spectral Bandwidth - thus enabling the combination of Grating and Slit to be identified.
| Groove Density (g/mm) |
Grating |
Bandwidth |
Factory Selectable Band |
Simulated Resolution (nm) Guidance Only Slit Size |
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| 10µm | 25µm | 50µm | 100µm | 200µm | 300µm | |||||
| 2400 | 240nm | 140nm | 180-540nm | 0.2 | 0.3 | 0.5 | 0.9 | 1.4 | 1.8 | |
| 1800 | 250nm | 200nm | 190-380nm | 0.3 | 0.4 | 0.7 | 1.1 | 2.2 | 3.2 | |
| 1400 | 230nm | 250nm | 190-920nm | 0.4 | 0.5 | 0.8 | 1.5 | 2.9 | ~ | |
| 1200 | 200nm 250nm 850nm |
220nm | 180-1010nm | 0.4 | 0.6 | 0.9 | 1.7 | 3.4 | ~ | |
| 1000 | 900nm | 300nm | 180-1100nm | 0.6 | 0.7 | 1.1 | 1.9 | 4.0 | 6.5 | |
| 900 | 550nm | 400nm | 180-1100nm | 0.7 | 1.0 | 1.5 | 2.5 | 5.0 | 8.0 | |
| 600 | 300nm 500nm |
670nm | 180-1100nm | 0.9 | 1.2 | 1.9 | 3.3 | 6.7 | 10 | |
| 500 | 330nm 560nm 770nm |
825nm | 180-1100nm | 1.0 | 1.4 | 2.1 | 4.4 | 8.4 | 12 | |
| 300 | 230nm 300nm |
920nm | 180-1100nm | 1.7 | 2.3 | 3.4 | 7.0 | 13.5 | ~ | |
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HummingBird Product Brief |
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HummingBird data sheet |
Communication with HB-Series spectrometers is via high speed (480Mbps) USB2.0 or 6 user-programmable digital I/Os and the inclusion of OtO's SpectraSmart software ensures that HummingBird can be up-and-running within minutes whilst the availability of a Software Development Kit for Windows and example code for Linux facilitates integration into a broad range of applications.
For more information on HummingBird and to discuss your application, please Contact Us.
