OtO Photonics supply a Software Development Kit (SDK) which supports C++ , VB6 , c# , VB.net , Delphi , Python and LabVIEW on Windows.

 

The SDK support document provides users with guidance on all aspects of interfacing to OtO's spectrometers and allows development of application specific control software.

 

The "Application and Measurement Development Flow Chart" describes tasks such as Spectrum Collection, Absorbance Measurement; Transmission & Reflectance Measurement; Colour Measurement and Trigger Flows.

 

There is also a comprehensive set of API Function Instructions covering all aspects of spectrometer operation and which includes Error Codes.

 

Software Development Kit user manual

 

OtO are very happy to work with OEM customers to assist in the development of application specific software so please This email address is being protected from spambots. You need JavaScript enabled to view it. to discuss your requirement.

 

OtO Photonics have identified a number of combinations of SmartEngine sensor, grating and slit which have proven a good solution for particular applications.

 

Application	Model Name	Wavelength Range (nm)	Slit Size (µm)	Resolution (nm)	SNR	Exposure Time	Dynamic Range	Thermal Stability (nm/°C)
LED Testing	SE2020	VNIR (350-1020)	50	1.9	250	1ms - 65s	1300	0.027
Water Quality Analysis	SE2020	FUV (180-850)	50	1.9	250	1ms - 65s	1300	0.027
Blood Analysis	SE2020	300-850	200	6	250	1ms - 65s	1300	0.027
DNA Analysis	SE2020	FUV (180-850)	50	1.9	250	1ms - 65s	1300	0.027
Raman Detection	SE2050	VNIR (350-1020)	25	1.2	500	5ms - 65s	5000	0.027
Air Analysis	SE2020	200-400	25	0.5	250	1ms - 65s	1300	0.015
Educational	SE2040	VNIR (350-1020)	25	1.2	200	1ms - 65s	1000	0.027
Film Thickness Measurement	SE2060	FUVN2 (180-1100)	50	2.3	500	5ms - 65s	5000	0.039
Solar Panel Measurement	SE2060	FUVN2 (180-1100)	50	2.3	500	5ms - 65s	5000	0.039
Fluorescence Detection	SE2020	340-850	200	6	250	1ms - 65s	1300	0.027
Gem Stone Examination	SE2020	400-500	25	0.25	250	1ms - 65s	1300	0.027
Food Analysis	SE2020	FUVN (180-1100)	50	2.3	250	1ms - 65s	1300	0.039
OCT Applications	SE2080	NIR1 (790-1010)	25	0.5	330	0.4 - 10ms	1600	0.027

 

Alternatively models are recommended based on commercial or technical criteria:-

 

Criteria	Model Name	Wavelength Range (nm)	Slit Size (µm)	Resolution (nm)	SNR	Exposure Time	Dynamic Range	Thermal Stability (nm/°C)
Most Sold	SE2020	VNIR (350-1020)	50	1.9	250	1ms - 65s	1300	0.027
Lowest Cost	SE2040	VNIR (350-1020)	25	1.2	200	1ms - 65s	1000	0.027
Full Wavelength (180-1100nm)	SE2020	FUVN	50	2.3	250	1ms - 65s	1300	0.039
	SE2060	FUVN2	50	2.3	500	5ms - 65s	5000	0.039
Highest SNR	SE2050	FUVN	50	2.3	500	5ms - 65s	5000	0.039
	SE2060	FUVN2	50	2.3	500	5ms - 65s	5000	0.039
Shortest Exposure	SE2030	VNIR (350-1020)	50	1.9	330	0.21 - 10ms	1600	0.027
Highest Resolution	SE2020	400-500	25	0.25	250	1ms - 65s	1300	0.007

 

	SmartEngine product brief
	SmartEngine data sheet
	SmartEngine FX2 data sheet

 

For further information and to discuss your requirement please contact APT.

OtO Photonics’ SmartEngine Series are compact Czerny-Turner spectrometers with exceptional performance and are optimised for OEM integration. This guide will help customers select, or design, the optimum configuration for their application and system needs.

 

SmartEngines are characterised by exceptional stability, ensuring precise optical resolution, low stray light and rapid response, even in challenging thermal, shock, and vibration environments.

 

Customers can choose from a huge range of configurations based on a choice of:

• 8 standard sensors
• 6 standard slit sizes
• 39 gratings (and increasing)

 

The four steps to product configuration are:

1. Define spectral range and resolution
   Establish if there’s a pre-existing combination of grating and factory set spectral range to meet your needs.
2. Select grating and slit combination
   Each grating has a selectable band within which the grating and slit can be configured to the required spectral width.
3. Choose the sensor
   Sensors from leading manufacturers are offered, each with unique characteristics.
4. Contact us
   We can advise on the best solution and confirm the part number, whether standard, customised or fully bespoke.

OEM solutions

We are experienced in working with OEM customers. If the optimum configuration cannot be found we can help with fully bespoke solutions

 

Step 1: Defining spectral range and resolution

When specifying the correct SmartEngine for your application we suggest you start by defining the spectral range and resolution you require to determine if one of OtO's standard combinations of grating and factory set spectral range meets your needs. You can also find the resolution available for different slit widths in the table below:-

 

Model Name	Grating Groove Density	Grating Blaze Wavelength	Factory Set Spectral Range	Resolution (nm)
				10µm	25µm	50µm	100µm	200µm	300µm
DUVN	500/mm	330nm	200-1025nm	1.1	1.4	2.4	3.5	7.5	12
FUV	600/mm	300nm	180-850nm	1.0	1.2	1.9	3.3	6.7	10
FUVN	300/mm	300nm	180-1100nm	1.7	2.3	3.2	5.6	12.8	20
VNIR	600/mm	500nm	350-1020nm	1.0	1.2	1.9	3.3	6.7	10
NIR1	1200/mm	850nm	790-1010nm	0.5	0.7	0.9	1.7	3.4	4.5

 

If the standard configurations do not match your requirement the full list of options is given below - or simply provide APT with the wavelength range you require and we can recommend a solution.

 

Step 2: Selecting grating and slit combination

Each grating has a factory selectable band within which OtO can configure the spectral width when setting up the spectrometer's cavity during manufacture.

 

In the table below, the 2400 grooves/mm grating can be set up to cover a 150nm spectral width at the UV end of its 180-520nm "Factory Selectable Band", for example 180-330nm. At longer wavelengths the spectral width reduces to 100nm so a user might specify 420-520nm. Note that there is a choice of 240nm or 400nm "blaze angle" for this grating - this represents the grating's maximum reflectivity - so in these examples you would use the 240nm for 180-330nm and 400nm for 420-520nm.

 

 

Grating Groove Density	Grating Blaze Wavelength	Spectral Width	Factory Selectable Band	Simulated Resolution (nm) Guidance only
				10µm	25µm	50µm	100µm	200µm	300µm
2400/mm	240nm 400nm	UV 150nm Vis 100nm	180-520nm	0.2	0.3	0.4	0.7	1.2	1.8
1800/mm	180nm 250nm 500nm	UV 210nm Vis 150nm	180-700nm	0.3	0.4	0.6	1.0	1.8	2.6
1600/mm	200nm	UV 240nm V-NIR 160nm	180-780nm	0.3	0.4	0.7	1.2	2.0	2.9
1500/mm	600nm	UV 260nm V-NIR 170nm	180-820nm	0.3	~	~	~	~	~
1400/mm	230nm	UV 260nm V-NIR 180nm	180-900nm	0.4	0.5	0.8	1.6	3.0	~
1200/mm	200nm 300nm 500nm 600nm 750nm 850nm	UV 320nm V-NIR 220nm	180-1010nm	0.4	0.6	0.9	1.7	3.4	4.5
1000/mm	250nm 900nm	UV 400nm V-NIR 300nm	180-1100nm	0.6	0.7	1.1	1.9	3.0	6.5
950/mm	1000nm	UV 420nm V-NIR 330nm	180-1100nm	0.7	0.9	1.4	2.4	3.5	~
900/mm	500nm	UV 450nm V-NIR 360nm	180-1100nm	0.6	0.8	1.3	2.3	4.6	7.1
830/mm	800nm	UV 490nm V-NIR 410nm	180-1100nm	0.9	1.0	1.5	2.5	4.5	8.3
600/mm	250nm 300nm 400nm 500nm 800nm 1000nm	UV 680nm V-NIR 660nm	180-1100nm	1.0	1.2	1.9	3.3	6.7	10.0
500/mm	300nm 330nm 560nm 770nm	UV 830nm V-NIR 820nm	180-1100nm	1.1	1.4	2.4	3.5	7.5	11.5
400/mm	250nm 550nm	920nm	180-1100nm	~	2.3	3.2	6.0	12.8	~
300/mm	200nm 230nm 280nm 300nm 422nm 500nm 580nm	920nm	180-1100nm	1.7	2.3	3.2	6.0	12.8	20.0

 

3. Choosing the sensor

Having established the combination of grating and slit it is then necessary to choose the optimum sensor for your application. OtO offer SmartEngine with eight standard sensors – each providing a combination of characteristics. SmartEngine's standard model numbers and associated sensors are shown below along with the suggested standard gratings:

 

Model	Sensor	Characteristic	Dynamic Range	SNR	Spectral Response Range (nm)
					DUVN	FUV	FUVN	VNIR	NIR1
					200 - 1025	180 - 850	180 - 1100	350 - 1020	790 - 1010
SE1010 SE2010	Sony ILX563A Linear CCD	180-1100nm	2200	200				*
SE1020 SE2020	Sony ILX511B UV front illuminated CCD	180-1100nm	1700	250	*	*	*	*	*
SE1030 SE2030	Hamamatsu S11639 CMOS Fast exposure 2048-pixel	180-1100nm Short exposure High DR/SNR	4300(2.5MHz) 3000(10MHz)	350	*	*	*	*	*
SE1040 SE2040	Sony ILX554B Front illuminated CCD	200-1025nm Lowest cost	2200	200	≥275nm			*
SE2050 SE2052	Hamamatsu S11510 NIR back-thinned CCD	790-1010nm High SNR @ NIR	4600	500					*
SE1070 SE2070	Toshiba 1304 High pixel-resolution CCD	200-1025nm High resolution	2200	350	*			*	*
SE1080 SE2080	Hamamatsu S13496 CMOS, fast exposure	200-1025nm 0.4ms exposure High resolution	3200	350	*			*	*
SE1090 SE2090	Hamamatsu S11071 Back-thinned CCD Fast exposure	180-1100nm 2ms exposure	6000	500		*		*
SE1120 SE2120	Hamamatsu X1-CMOS Fast exposure 1024-pixel	180-1100nm High sensitivity High DR High SNR	4500(2.5MHz)	350	*	*	*	*	*

 

The part number of the final SmartEngine is derived from the choice of sensor, slit width and grating/spectral range, i.e. SE2030-100-DUVN. If a non-standard combination of grating/spectral range is selected a custom designation will be issued

 

For volume opportunities with OEM customers OtO also develop bespoke configurations with custom gratings and slits along with non-standard sensors, optics and interface connections.

 

	SmartEngine product brief
	SmartEngine data sheet

 

4. Contact us

For further information and to discuss your requirement please contact APT.