Description

Features
Delay of line customized to customer requirements
Use of master class optical connectors, optical fiber with low attenuation and precise winding technology guarantees low insertion loss of line
Extremely high delay accuracy
Available in an acoustic and vibration absorbing version

Applications
Laser spectroscopy
Test and measurement system
Quantum optics
Optoelectronic oscillators
Optical gyroscopes

Technical parameters
OPTICAL FIBER PARAMETERS 1
Parameter Unit Value
Fiber type G.657A2 2
Attenuation @1310 nm dB/km ≤0.35
Attenuation @1383 nm dB/km ≤0.34
Attenuation @1490 nm dB/km ≤0.23
Attenuation @1550 nm dB/km ≤0.21
Attenuation @1625 nm dB/km ≤0.23
Mode filed diameter (MFD) @1310 nm µm 8.8 ± 0.4
Mode field diameter (MFD) @1550 nm µm 9.8 ± 0.5
1. Full datasheet of optical fiber available on request

2. Other type of fiber Attenuation @1310 nmon request

OPTICAL CONNECTORS PARAMETERS
Parameter Unit Value
Maximum insertion loss IL dB ≤ 0.1
Minimum return loss RL dB ≥ 65 (APC), ≥ 55 (UPC)
Concentricity µm ≤ 0.3
Longitudinal angle of the ferrule hole ⁰ ≤ 0.2
Apex offset µm ≤ 30
Fiber height nm -30 – +30
Radius of curvature mm 7-12 (APC), 10-20 (SC UPC), 7-25 (LC UPC)
Polishing angle ⁰ 8 ± 0.3 (APC), 0 ± 0.2 (UPC)
Measure at wavelength 1310, 1550 nm

STANDARD SPECIFICATIONS 2*
Nominal length [km] Maximum insertion loss [dB] 3* Typical delay [µs]
1 0.41 5
2 0.62 10
5 1.25 25
10 2.30 50
15 3.35 75
20 4.40 100
25 5.45 125
50 10.70 250
Delay tolerance 0.005 %

2. Other lengths available on request

3. Insertion loss with optical connectors at 1550 nm wavelength