The HP/Agilent 81672B is a tunable laser source module delivering precise optical output across the O-band spectrum. Operating from 1265 nm to 1375 nm with ±10 pm absolute accuracy and 0.1 pm resolution (17.7 MHz at 1300 nm), it enables stable, narrow-linewidth characterization of optical components and systems. The instrument achieves mode-hop-free tuning across its full wavelength range at speeds up to 80 nm/s, with maximum output power of +10 dBm. Polarization-maintaining Panda-type fiber output, a built-in real-time wavelength meter, and continuous sweep capability simplify integration into test benches. Spectral purity reaches 40 dB/nm across 1270–1375 nm with RIN of −145 dB (typical), ensuring minimal noise for demanding measurements. Wavelength stability is maintained for one month within ±4.4 K after automatic wavelength zeroing.
## Technical Specifications
• Wavelength Range: 1265 nm to 1375 nm (O-band)
• Wavelength Accuracy (Absolute): ±10 pm
• Wavelength Resolution: 0.1 pm (17.7 MHz at 1300 nm)
• Maximum Tuning Speed: 80 nm/s
• Mode-Hop Free Tuning: Full wavelength range
• Maximum Output Power: +10 dBm
• Signal-to-Spontaneous Emission Ratio: 40 dB/nm (1270–1375 nm)
• Relative Intensity Noise: −145 dB (typical)
• Output Fiber: Panda-type polarization-maintaining
• Wavelength Stability: Valid for one month within ±4.4 K temperature range after automatic zeroing
## Key Features
• Built-in real-time wavelength meter for immediate feedback
• Continuous sweep through full wavelength range enables automated characterization routines
• Fast tuning speed supports dynamic measurement protocols
• High spectral purity minimizes measurement artifacts in sensitive applications
## Typical Applications
• Optical amplifier testing and gain characterization
• Passive optical component evaluation
• Integrated photonic device characterization
• Fiber-optic R&D and bench-level testing
## Compatibility & Integration
The 81672B module requires an 8164A/B Mainframe for operation.
