The Keysight 81602A is a tunable laser module delivering high-power optical output across the O-band spectrum. Operating from 1250 nm to 1370 nm with peak power exceeding +18 dBm, it addresses the demanding power budgets of silicon photonics characterization, integrated photonic device testing, and optical communications validation. The module combines exceptional wavelength accuracy (±1.5 pm typical) with fast bidirectional sweep capability up to 200 nm/s and built-in wavelength metering for precision tuning. Output is delivered through a polarization-maintaining fiber port with 16 dB polarization ratio, ensuring well-defined state of polarization for sensitive optical measurements. Power stability of 0.01 dB supports repeatable test sequences across extended operating temperatures from −40 °C to 70 °C.
Technical Specifications
• Wavelength Range: 1250 nm to 1370 nm
• Peak Output Power: >+18 dBm
• CW Output Power Range: 10 to 18 dBm
• 100GBASE-LR4 Output Power: +16 dBm
• CWDM Channel Output Power (1271/1291/1311/1331 nm): +12 dBm
• Wavelength Accuracy: ±1.5 pm (typical)
• Sweep Speed: Up to 200 nm/s, bidirectional
• Power Stability: 0.01 dB
• Output Fiber: Polarization Maintaining Fiber (PMF)
• Polarization Ratio: 16 dB
• Laser Classification: Class 3B (IEC 60825-1)
• Warm-up Time: 30 minutes
• Operating Temperature: −40 °C to 70 °C
– Key Features
• Built-in wavelength meter enables precise wavelength tuning
• Exceptional power flatness, repeatability, and stability across tuning range
• Fast repetition rate supports accelerated characterization workflows
• Integrated laser head and control unit configuration
– Typical Applications
• Silicon photonics device characterization and functional validation
• Integrated optical component testing at specified signal wavelengths
• 100G Ethernet receiver testing (with external modulator, waveform generator, and optical attenuator)
• CWDM and PON standards compliance testing
• High insertion-loss modulator and splitter evaluation
– Compatibility & Integration
The 81602A operates with 81600B laser programming commands and integrates into the N7700A photonic application suite for streamlined test environment deployment.
