The HP Agilent 83430A Lightwave Transmitter is a precision optical signal source designed for characterization and validation of optical receivers and communication systems. Operating at 1310.04 nm, this DFB laser-based transmitter delivers stable, configurable optical signals for SDH/SONET compliance testing across OC-1 through OC-48 data rates. The unit supports multiple modulation schemes—digital AC/DC coupled and analog AC coupled—with bit rates spanning DC to 2500 Mb/s, enabling simulation of diverse signal conditions for telecommunications and data networking applications.
Technical Specifications
Optical Output
• Center Wavelength: 1310.04 nm (±1.25 nm adjustment range via front-panel temperature control)
• Laser Type: DFB (Distributed Feedback)
• Peak Coupled Power (Digital Mode): Minimum 1.3 mW (+1 dBm)
• Average Coupled Power (Analog Mode): Minimum 0.63 mW (−2.0 dBm)
• Extinction Ratio: User adjustable, 8.2 dB to >13 dB (typical preset 10 dB)
• Output Fiber: 9/125 µm single-mode
Modulation Inputs
• Digital AC Coupled: 50 to 2500 Mb/s; 0.7 to 1.5 V pk-pk input; 40 to 60% ones density; ±0.2 V threshold adjustment; 50 Ω impedance
• Digital DC Coupled: DC to 2500 Mb/s; −1.7 V low, −0.9 V high (ECL levels); 0 to 100% ones density; ±0.2 V threshold adjustment
• Analog AC Coupled: 0.1 to 2500 MHz; 2 V pk-pk maximum input; 50 Ω impedance
• Maximum Input Level (AC Coupled): 2 V pk-pk; (DC Coupled): −4.5 to 0 V
• Input Return Loss: 0.1–1 GHz (12 dB), 1–2 GHz (8.5 dB), 2–2.5 GHz (6 dB)
– Key Features
• SDH/SONET compliant: OC-1/STM-0 (51.84 Mb/s) through OC-48/STM-16 (2.488 Gb/s)
• Multi-mode modulation capability: AC/DC coupled digital and analog inputs
• Wavelength tuning via temperature control for precision alignment
• Flexible extinction ratio adjustment for signal condition simulation
• Non-inverting digital inputs with inverting analog option
– Typical Applications
Optical receiver characterization, optical transceiver validation, SDH/SONET system testing, data rate performance verification across 52 Mb/s to 2.488 Gb/s rates.
– Compatibility & Integration
9/125 µm single-mode fiber output. 50 Ω input impedance. Accepts ECL and TTL-compatible digital signals and analog modulation inputs up to 2.5 GHz.
