Manual type optical delay lines enable highly precise and stable adjustment of the amount of delay by tuning optical path length. This product combines the delay lines as units. A 3U rack can contain up to 8 units. 
Since every optical path is designed to be tunable in space, it is very unlikely to be affected by polarization or dispersion.


– Low loss; low loss fluctuation; and high return loss
– High resolution and a large amount of delay
– All units are compatable with the Polarization Controller and Wavelength Tunable 
Filter modules and can be arbitrarily combined within a rack


Brochure  PDF

Typical Specifications

Model RDLA
Insertion Loss < 1.5dB(including loss fluctuation)
Loss Fluctuation < 0.2dB
Return Loss > 50dB
Amount of Delay > 300psec
Resolution < 0.03psec
PDL < 0.1dB
Optical Fiber SMF or DSF or PMF
Optical Adapter FC or SC


Product Dimensions

Combination example: RDLA (4ch) + Polarization Controller RPCA (4ch) 
*The Wavelength Tunable Filter Unit and Variable Optical Attenuator Unit can also be combined.