Tactical Fiber Drum

Tactical Fiber Drum

A fiber optic drum for drone use enables secure, high-bandwidth connection between the drone and the commander control station, allowing real-time transmission of video and data with minimal latency and immunity to electromagnetic interference.

Features
Specifications
Application
Documents

Provides real-time data and video transmission between drone and ground control
Immune to EMI, jamming, and interception– perfect for contested environments
Tactical-grade optical fiber for UAV, drones and UGV
Field-proven solution, tested under real-world conditions
Lightweight, rugged drum design optimized for airborne and mobile platforms
Enables high-speed communication with low latency and high reliability
Optional integration with automatic retraction mechanism
For 270 µm fiber

SPECIFICATIONS

G.657A2 0.27 mm

Characteristics		Conditions	Specified Values	Units
Optical Characteristics
Attenuation		1310 nm	≤0.35	[dB/km]
	1383 nm (after H2-aging)		≤0.35	[dB/km]
		1460 nm	≤0.25	[dB/km]
		1490 nm	≤0.23	[dB/km]
		1550 nm	≤0.21	[dB/km]
		1625 nm	≤0.23	[dB/km]

Attenuation vs. Wavelength Max. α difference		1285～1330 nm	≤0.03	[dB/km]
		1525～1575 nm	≤0.02	[dB/km]
Zero dispersion slope			≤0.092	ps/(nm2·km)
PMD
Maximum Individual Fibre			≤0.1	[ps/√ km]
Link Design Value (M=20,Q=0.01%)			≤0.06	[ps/√ km]
Typical value			0.04	[ps/√ km]

Cable cutoff wavelength			λcc ≤1260	[nm]
Mode field diameter (MFD)		1310 nm	8.4～9.2	[μm]
		1550 nm	9.3～10.3	[μm]
Effective group index of refraction (Neff)		1310 nm	1.466
		1550 nm	1.467
Point discontinuities		1310 nm	≤0.05	[dB]
		1550 nm	≤0.05	[dB]
Geometrical Characteristics
Cladding diameter			125.0±0.7	[μm]
Cladding non-circularity			≤0.7	[%]
Coating diameter			245±5	[μm]
Coating-cladding concentricity error			≤12.0	[μm]
Coating non-circularity			≤6.0	[%]
Core-cladding concentricity error			≤0.5	[μm]
Curl (radius)			≥4	[m]
Delivery length			2.1 to 50.4	[km/reel]
Environmental Characteristics (1310 nm, 1550 nm & 1625 nm)
Temperature dependence		-60℃ to +85℃	≤0.05	[dB/km]
Induced attenuation at
Temperature-humidity cycling		-10℃ to +85℃	≤0.05	[dB/km]
Induced attenuation at		98% RH
Watersoak dependence		23℃	≤0.05	[dB/km]
Induced attenuation at		For 30 days
Damp heat dependence		85℃ and 85%	≤0.05	[dB/km]
Induced attenuation at		For 30 days
Dry heat		85℃	≤0.05	[dB/km]
aging at		For 30 days
Mechanical Specification
Proof test		off line	≥9.0	[N]
			≥1.0	[%]
			≥100	[kpsi]
Macro-bend induced attenuation
10 turns around a mandrel of 15 mm radius		1550 nm	≤0.03	[dB]
10 turns around a mandrel of 15 mm radius		1625 nm	≤0.1	[dB]
1 turn around a mandrel of 10 mm radius		1550 nm	≤0.1	[dB]
1 turn around a mandrel of 10 mm radius		1625 nm	≤0.2	[dB]
1 turn around a mandrel of 7.5 mm radius		1550 nm	≤0.2	[dB]
1 turn around a mandrel of 7.5 mm radius		1625 nm	≤0.5	[dB]

Coating strip force		average force (typical)	1.7	[N]
		peak force	≥1.3 ≤8.9	[N]

Dynamic stress corrosion susceptibility parameter nd（typical）			27