Ocean Optics Flame-S, User Manual

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5: How the Flame Spectrometer Works
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1. Fiber Optic Connector: Light from a fiber enters the optical bench through the SMA
905 Connector. The SMA 905 bulkhead provides a precise location for the end of the
optical fiber, slit, absorbing filter and fiber clad mode aperture. While we supply SMA
connectors as standard, FC connectors are also available. See #2 for available options.
2. Interchangeable Slit: Light passes through the installed slit, which acts
as the entrance aperture. Slits come in various widths from 5 µm to 200
µm. The slit is fixed in the SMA 905 bulkhead to sit against the end of
a fiber. Smaller slit sizes achieve the best optical resolution while larger
slits have higher light throughput. Slit size is labeled as shown.
Slit Description Pixel Resolution
INTSMA-5 5-µm wide x 1-mm high ~3.0 pixels
INTSMA-10 10-µm wide x 1-mm high ~3.2 pixels
INTSMA-25 25-µm wide x 1-mm high ~4.2 pixels
INTSMA-50 50-µm wide x 1-mm high ~6.5 pixels
INTSMA-100 100-µm wide x 1-mm high ~12 pixels
INTSMA-200 200-µm wide x 1-mm high ~24 pixels
INTSMA-000 Interchangeable bulkhead with no slit NA
INTSMA-KIT Interchangeable SMA Kit connectors; 5µm; 10µm; 25µm;
50µm; 100µm and 200µm
NA
Ocean Optics also offers a range of FC connector slits in the same wavelengths, with the
product code INTFC-XXX. An INTFC-KIT is also available. Note that these items are
made to order and have a longer lead time. Contact an Ocean Optics Application Sales
Engineer for more details.
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Procedure
To calculate the optical resolution for your spectrometer,
1.
Find the number of pixels for your detector.
2. Divide the range of the spectrometer by the number of pixels.
3. Multiply this number by the pixel resolution from the table above.
For example: Resolution of the Flame-S with a 50
µ
m slit and 650 nm range
650/2048 x 6.5 = 2.1 nm