Linear transmittance filters (LTF) are used for wavelength identification applications, employing a transmittance that changes linearly over a specified wavelength range. The LTF transmittance must be monotonic to provide a one-to-one correspondence between the filter transmittance and a given wavelength.
Iridian is experienced in the design and manufacture of numerous linear transmittance filters. They feature low substrate-etalon ripple, custom slope and dynamic ranges with low linearity tolerance.
In addition to the standard LTF, Iridian can custom-manufacture these filters to your specifications.
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|Graph||Wavelength Range [nm]||Product|
|1520 - 1570||LTF C-Band Negative Slope|
|1520 - 1570||LTF 45 Degree C-Band|
|1520 - 1570||LTF C-Band Positive Slope|
|1554.5 - 1561.5||LTF 003 7nm Range|
|1520 - 1620||LTF C-L Band Positive Slope|
|1520 - 1620||LTF C-L Band Negative Slope|