HP 8168D Tunable Laser source

The HP 8168D Tunable Laser Source delivers precise wavelength tuning across the 1490–1565 nm window for optical component characterization and system testing. Built-in single-mode filtering, independent power and wavelength control, and coherent control mode enable accurate measurements of optical amplifiers and DWDM components. The instrument integrates into automated production test environments and supports manual setups with built-in application software for loss, return loss, and coupling ratio measurements.

– Technical Specifications

• Wavelength Range: 1490–1565 nm (S+C bands)
• Absolute Wavelength Accuracy: ±0.2 nm (typical)
• Relative Wavelength Accuracy: ±0.1 nm
• Wavelength Resolution: 0.001 nm
• Wavelength Stability: −3 dBm)
• Optical Power Stability: ±0.03 dB
• Signal-to-Spontaneous Emission Ratio: >35 dB/1 nm
• Signal Suppression Ratio: >30 dB/1 nm
• Fiber Type: 9/125 µm SMF

– Key Features

• Single-mode operation guaranteed across full wavelength range via built-in side mode filter
• Coherent control mode reduces effective linewidth and mitigates interference ripple
• Independent wavelength and output power selection
• Internal modulation: 250 Hz–300 kHz squarewave, 100% modulation depth
• External modulation: 200 kHz–20 MHz bandwidth (±15% max modulation depth)

– Typical Applications

• Optical amplifier characterization
• DWDM component testing
• Production test automation
• Research and development in optical communications

– Compatibility & Integration

Multiple connector options available: straight contact (Option 021), angled contact (Option 022), angled non-contact Diamond HMS-10/HP/HRL (Option 023). Polarization-maintaining Panda-type fiber available (Option 007). HP-IB address configurable for network integration.

Physical: 145 mm (H) × 426 mm (W) × 545 mm (D); 18 kg net weight.