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The Acterna OLA-15 Optical Attenuator is a handy-sized, rugged instrument for variably attenuating optical signals in single-mode applications at 1310 and 1550 nm. Example applications include the simulation of line loss for BER tests on fiber optics systems, the determination of system margin / receiver sensitivity or the calibration of optical power meters. A complete test set comprising signal source, attenuator and power meter contained in a shock-resistant case is also available. The OLA-15 is also suitable for measurements on systems sensitive to back-reflection, e.g. those operating at high bit rates. The return loss (reflection attenuation) of more than 40 dB means that the OLA-15 can be looped into the signal path without problems and without affecting the transmission characteristics. Specifications. Wavelength Range of use: 1260 to 1625 nm. Wavelength Calibrated at: 1310 and 1550 nm. Attenuation range: 3 to 60 dB. Minimum insertion loss: <= 3 dB. Linearity: +0.2 dB. Repeatability of attenuation setting: +0.1 dB. Total attenuation uncertainty: +0.8 dB. Attenuation display: 4-digit liquid-crystal display. Resolution: 0.05 dB. Fiber type: single-mode 9/125 mm. Return loss at input / output: > 40 dB. Maximum input level: +20 dBm.
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